Edgar Filing: MORGAN STANLEY INCOME SECURITIES INC

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-CSR

CERTIFIED SHAREHOLDER REPORT OF REGISTERED
MANAGEMENT INVESTMENT COMPANIES

Investment Company Act file number			811-02349

Morgan Stanley Income Securities Inc.
(Exact name of registrant as specified in charter)

522 Fifth Avenue, New York, New York					10036
(Address of principal executive offices)					(Zip code)

John H. Gernon 522 Fifth Avenue, New York, New York 10036
(Name and address of agent for service)

Registrant’s telephone number, including area code:				212-296-0289

Date of fiscal year end:	September 30,

Date of reporting period:		March 29, 2018

Item 1 - Report to Shareholders

Directors

Frank L. Bowman
Kathleen A. Dennis
Nancy C. Everett
Jakki L. Haussler
Dr. Manuel H. Johnson
Joseph J. Kearns
Michael F. Klein
Patricia Maleski
Michael E. Nugent, Chair of the Board
W. Allen Reed
Fergus Reid

Officers

John H. Gernon
President and Principal Executive Officer

Timothy J. Knierim
Chief Compliance Officer

Francis J. Smith
Treasurer and Principal Financial Officer

Mary E. Mullin
Secretary

Michael J. Key
Vice President

Transfer Agent

Computershare Trust Company, N.A.
211 Quality Circle, Suite 210
College Station, Texas 77845

Custodian

State Street Bank and Trust Company
One Lincoln Street
Boston, Massachusetts 02111

Independent Registered Public Accounting Firm

Ernst & Young LLP
200 Clarendon Street
Boston, Massachusetts 02116

Legal Counsel

Dechert LLP
1095 Avenue of the Americas
New York, New York 10036

Counsel to the Independent Directors

Perkins Coie LLP
30 Rockefeller Plaza
New York, New York 10112

Adviser/Administrator

Morgan Stanley Investment Management Inc.
522 Fifth Avenue
New York, New York 10036

The financial statements included herein have been taken from the records of the Fund without examination by the independent auditors and accordingly they do not express an opinion thereon.

ICBSAN
2099975 EXP. 5.31.19

INVESTMENT MANAGEMENT

Morgan Stanley
Income Securities
Inc.

NYSE: ICB

Semi-Annual Report

March 29, 2018

Morgan Stanley Income Securities Inc.

Table of Contents

Welcome Shareholder					3
Fund Report					4
Portfolio of Investments					8
Statement of Assets and Liabilities					18
Statement of Operations					19
Statements of Changes in Net Assets					20
Notes to Financial Statements					21
Financial Highlights					35
Portfolio Management					36
Investment Policy					37
Dividend Reinvestment Plan					44
Privacy Notice					47

Welcome Shareholder,

We are pleased to provide this semi-annual report, in which you will learn how your investment in Morgan Stanley Income Securities Inc. (the "Fund") performed during the latest six-month period. It includes an overview of the market conditions and discusses some of the factors that affected performance during the reporting period. In addition, the report contains financial statements and a list of portfolio holdings.

Morgan Stanley Investment Management is a client-centric, investor-led organization. Our global presence, intellectual capital, and breadth of products and services enable us to partner with investors to meet the evolving challenges of today's financial markets. We aim to deliver superior investment service and to empower our clients to make the informed decisions that help them reach their investment goals.

As always, we thank you for selecting Morgan Stanley Investment Management and look forward to working with you in the months and years ahead.

Market forecasts provided in this report may not necessarily come to pass. There is no assurance that the Fund will achieve its investment objectives. The Fund is subject to market risk, which is the possibility that market values of securities owned by the Fund will decline and, therefore, the value of the Fund's shares may be less than what you paid for them. Accordingly, you can lose money investing in this Fund.

Fund Report (unaudited)

For the six months ended March 29, 2018

Market Conditions

The six-month reporting period was characterized by a widening in corporate credit spreads, despite pockets of market strength over the period. Global growth, monetary policy and geopolitical tensions continued to infiltrate market rhetoric over the period.

During the final quarter of 2017, spread tightening was broad-based across fixed income markets, as every major rating category and sector saw its spreads tighten relative to government bonds. Investment grade credit hit new post-financial crisis lows as spreads continued to narrow. Macroeconomic conditions remained supportive of the asset class, as they had for most of 2017. Economic data continued to be strong, and while inflation remained low, central banks were still set on their gradual and deliberate path towards normalization. News flow was dominated by two familiar themes: the continued normalization of the U.S. financial sector and continued merger and acquisition (M&A) activity within global non-financials.

However, by the end of the first quarter of 2018, 2017 felt so far away. The positive tone that characterized much of 2017 had largely dissipated by March. A trade war, rising short-term rates and weak credit technicals resulted in corporate spreads getting hit especially hard in the latter half of the first quarter, causing spreads to widen meaningfully.

Given the relative stability in economic data and monetary policy during the first quarter, we believe that technical forces largely drove fixed income market trading during this period. The first quarter saw large

volumes of corporate issuance and weakness in short-term bonds. The combination of both of these factors created a weak technical picture and led to underperformance in all parts of the investment grade corporate market.

Corporate indices experienced significant weakness late in the first quarter, with the investment grade corporate index widening by 16 basis points in the first quarter of 2018.ⁱ Spreads retraced much of their 2017 and early-2018 outperformance and widened back out to September 2017 levels. Investment grade spreads widened across all sectors, with financials underperforming non-financials.

Performance Analysis

The net asset value (NAV) of Morgan Stanley Income Securities Inc. (ICB) decreased from $19.53 per share on September 30, 2017 to $19.01 per share on March 29, 2018. Based on the NAV change plus reinvestment of dividends and distributions totaling approximately $0.29 per share, the Fund's total NAV return for the six-month period was -1.15 percent. ICB's value on the New York Stock Exchange (NYSE) moved from $18.30 per share on September 30, 2017, to $18.83 per share on March 29, 2018. Based on this change plus reinvestment of dividends and distributions, the Fund's total market return for the six-month period was 4.49 percent. ICB's NYSE market price was at a 0.95 percent discount to its NAV on March 29, 2018. Past performance is no guarantee of future results.

i Source: Bloomberg Barclays. Data as of March 29, 2018

The monthly dividend declared in April 2018 was unchanged at $0.0425 per share. The dividend reflects the current level of the Fund's net investment income.

The Fund's investment grade exposure detracted from the Fund's returns over the period. Weakness in the credit market over the period resulted in wider spreads across all major segments of the investment grade market. The Fund's emphasis on financial institutions, specifically the banking sector, was particularly disadvantageous for performance over the reporting period, as financials underperformed. The Fund had an underweight to industrials, attributable to relatively weaker fundamentals and less favorable relative value within the industrials segment of the market. The industrials underweight contributed positively to performance over the period, driven mainly by positioning in consumer non-cyclicals.

An opportunistic allocation to below investment grade (or high yield) credits slightly detracted from the Fund's performance over the period.

As we head into the remainder of 2018, we anticipate that primary market activity and selling in the front-end of credit capital structures will remain major drivers of technicals in the investment grade market. Absent a shift in the macroeconomic backdrop, however, credit fundamentals should provide an anchor for the asset class. We consider any continued backup in spreads or consequent dislocations in the market as an attractive opportunity to add yield in a sustained low default risk environment.

We believe technicals can continue to support the asset class, and fundamentals may remain positive in certain sectors of the market. At current valuations, we do not anticipate a drastic move tighter in spreads; however, we believe spreads could continue to grind tighter into year-end if the current backdrop persists. Going forward, we remain vigilant of global political headlines and will continue to monitor their potential impact on credit markets.

Despite our favorable outlook on investment grade corporates, we remain cognizant that the business cycle is maturing. Company behavior in later-cycle environments is often tilted in favor of equity holders at the expense of bond holders. As a result, we remain reliant upon our active, value-oriented approach and bottom-up credit research process to help identify the best value opportunities, while avoiding those companies where we believe there is limited scope to earn attractive returns.

Given this view, at the end of the period, the Fund was positioned to be slightly overweight credit risk as a whole, driven by an overweight to financials, while we remained underweight non-financials. We continue to believe that the fundamental story in the financial sector remains strong, as banks have spent years shoring up balance sheets, increasing their liquidity profiles and reducing risky activities. In the non-financial segment of the investment grade market, the Fund was underweight, due to relatively weaker fundamentals and stretched valuations. In addition, the Fund continued to hold small allocations to high yield bonds, as we believe

that both fundamentals and valuations may well compensate investors for bearing risk.

The Fund's procedure for reinvesting all dividends and distributions in common shares is through purchases in the open market. This method helps support the market value of the Fund's shares. In addition, the Directors have approved a share repurchase program whereby the Fund may, when appropriate, purchase shares in the open market or in privately negotiated transactions at a price not above market value or net asset value, whichever is lower at the time of purchase.

Performance data quoted represents past performance, which is no guarantee of future results, and current performance may be lower or higher than the figures shown. Investment return, net asset value and common share market price will fluctuate and Fund shares, when sold, may be worth more or less than their original cost.

There is no guarantee that any sectors mentioned will continue to perform as discussed herein or that securities in such sectors will be held by the Fund in the future.

PORTFOLIO COMPOSITION as of 03/29/18
Corporate Bonds	98.0	%
Asset-Backed Securities	1.1
Short-Term Investments	0.9

** Does not include open long/short futures contracts with an underlying face amount of $53,895,054 with net unrealized appreciation of $138,801. Does not include open swap agreements with net unrealized appreciation of $236,517.

LONG-TERM CREDIT ANALYSIS as of 03/29/18
AAA	0.88	%
AA	1.86
A	38.05
BBB	55.91
BB	2.28
B or Below	0.47
Not Rated	0.55

Subject to change daily. Provided for informational purposes only and should not be deemed a recommendation to buy or sell the types of securities mentioned above. All percentages for portfolio composition are as a percentage of total investments and all percentages for long-term credit analysis are stated as a percentage of total long-term investments.

Security ratings disclosed with the exception for those labeled "not rated" have been rated by at least one Nationally Recognized Statistical Rating Organization ("NRSRO"). These ratings are obtained from Standard & Poor's Ratings Group ("S&P"), Moody's Investors Services, Inc. ("Moody's") or Fitch Ratings ("Fitch"). If two or more NRSROs have assigned a rating to a security, the highest rating is used and if securities are not rated, Morgan Stanley Investment Management Inc. (the "Adviser") has deemed them to be of comparable quality. Ratings from Moody's or Fitch, when used, are converted into their equivalent S&P rating.

Morgan Stanley is a full service securities firm engaged in securities trading and brokerage activities, investment banking, research and analysis, financing and financial advisory services.

For More Information About Portfolio Holdings

Each Morgan Stanley fund provides a complete schedule of portfolio holdings in its semiannual and annual reports within 60 days of the end of the fund's second and fourth fiscal quarters. The semiannual reports and the annual reports are filed electronically with the Securities and Exchange Commission (SEC) on Form N-CSRS and Form N-CSR, respectively. Morgan Stanley also delivers the semiannual and annual reports to fund shareholders and makes these reports available on its public web site, www.morganstanley.com/im. Each Morgan Stanley fund also files a complete schedule of portfolio holdings with the SEC for the fund's first and third fiscal quarters on Form N-Q. Morgan Stanley does not deliver the reports for the first and third fiscal quarters to shareholders, nor are the reports posted to the Morgan Stanley public web site. You may, however, obtain the Form N-Q filings (as well as the Form N-CSR and N-CSRS filings) by accessing the SEC's web site, http://www.sec.gov. You may also review and copy them at the SEC's public reference room in Washington, DC. Information on the operation of the SEC's public reference room may be obtained by calling the SEC at (800) SEC-0330. You can also request copies of these materials, upon payment of a duplicating fee, by electronic request at the SEC's e-mail address (publicinfo@sec.gov) or by writing to the SEC's Public Reference Section, Washington, D.C. 20549-1520.

In addition to filing a complete schedule of portfolio holdings with the SEC each fiscal quarter, the Fund makes portfolio holdings information available by providing the information on its public website, www.morganstanley.com/im. The Fund provides a complete schedule of portfolio holdings on the public

website on a monthly basis at least 15 calendar days after month-end and under other conditions as described in the Fund's policy on portfolio holdings disclosure. You may obtain copies of the Fund's monthly website postings, by calling toll free 1(800) 231-2608.

Proxy Voting Policy and Procedures and Proxy Voting Record

You may obtain a copy of the Fund's Proxy Voting Policy and Procedures without charge, upon request, by calling toll free (800) 231-2608 or by visiting the Mutual Fund Center on our web site at www.morganstanley.com/im. It is also available on the SEC's web site at http://www.sec.gov.

You may obtain information regarding how the Fund voted proxies relating to portfolio securities during the most recent twelve-month period ended June 30 without charge by visiting the Mutual Fund Center on our web site at www.morganstanley.com/im. This information is also available on the SEC's web site at http://www.sec.gov.

Morgan Stanley Income Securities Inc.

Portfolio of Investments n March 29, 2018R (unaudited)

PRINCIPAL AMOUNT (000)			COUPON RATE			MATURITY DATE	VALUE
		Corporate Bonds (98.3%)
		Basic Materials (4.8%)
$	775	Eastman Chemical Co.		3.80	%	03/15/25	$	784,716
	725	EI du Pont de Nemours & Co.		2.20		05/01/20		715,195
	375	Eldorado Gold Corp. (Canada) (a)		6.125		12/15/20		357,188
	425	Glencore Funding LLC (Switzerland) (a)		3.875		10/27/27		404,668
	125	Goldcorp, Inc. (Canada)		5.45		06/09/44		139,760
	1,050	International Paper Co.		3.00		02/15/27		972,954
	600	LyondellBasell Industries N.V.		4.625		02/26/55		588,374
	875	Newcastle Coal Infrastructure Group Pty Ltd. (Australia) (a)		4.40		09/29/27		843,626
	495	NOVA Chemicals Corp. (Canada) (a)		5.25		08/01/23		499,950
	925	Sherwin-Williams Co. (The)		2.75		06/01/22		901,803
	908	Southern Copper Corp. (Mexico)		7.50		07/27/35		1,179,220
	690	Vale Overseas Ltd. (Brazil)		6.875		11/21/36		815,028
								8,202,482
		Communications (15.8%)
	200	21st Century Fox America, Inc.		6.15		02/15/41		252,522
	670	21st Century Fox America, Inc.		6.40		12/15/35		848,891
	450	Alibaba Group Holding Ltd. (China)		2.80		06/06/23		435,444
	375	Amazon.com, Inc. (a)		2.80		08/22/24		364,391
	850	Amazon.com, Inc. (a)		4.25		08/22/57		851,822
	100	Amazon.com, Inc.		4.95		12/05/44		113,118
	1,275	AT&T, Inc.		4.25		03/01/27		1,291,197
	1,394	AT&T, Inc.		4.50		03/09/48		1,300,775
	2,050	AT&T, Inc.		4.90		08/14/37		2,067,898
	1,225	AT&T, Inc.		5.15		02/14/50		1,242,287
	400	Baidu, Inc. (China)		2.75		06/09/19		398,795
	300	Booking Holdings, Inc.		0.90		09/15/21		375,180
	600	Charter Communications Operating LLC/ Charter Communications Operating Capital		4.20		03/15/28		575,488
	1,925	Charter Communications Operating LLC/ Charter Communications Operating Capital		4.908		07/23/25		1,970,087
	550	Charter Communications Operating LLC/ Charter Communications Operating Capital		6.484		10/23/45		605,741
	400	CSC Holdings LLC (a)		5.50		04/15/27		384,000
	325	Ctrip.com International Ltd. (China)		1.25		09/15/22		338,419
	620	Deutsche Telekom International Finance BV (Germany)		8.75		06/15/30		879,969
	300	Discovery Communications LLC		3.95		03/20/28		288,357
	375	Discovery Communications LLC		5.20		09/20/47		375,603

See Notes to Financial Statements
8

Morgan Stanley Income Securities Inc.

Portfolio of Investments n March 29, 2018R (unaudited) continued

PRINCIPAL AMOUNT (000)			COUPON RATE			MATURITY DATE	VALUE
$	300	eBay, Inc.		2.15	%	06/05/20	$	294,547
	475	Finisar Corp.		0.50		12/15/36		427,932
	350	Omnicom Group, Inc.		3.60		04/15/26		339,869
	131	Omnicom Group, Inc.		3.65		11/01/24		130,307
	900	Ooredoo International Finance Ltd. (Qatar) (a)		3.25		02/21/23		869,355
	250	Telefonica Emisiones SAU (Spain)		4.103		03/08/27		250,207
	750	Telefonica Europe BV (Spain)		8.25		09/15/30		1,017,673
	400	Telenor East Holding II AS, Series VIP (Norway)		0.25		09/20/19		389,316
	1,725	Time Warner, Inc.		3.80		02/15/27		1,670,882
	1,100	Verizon Communications, Inc.		4.125		03/16/27		1,116,280
	1,975	Verizon Communications, Inc.		4.272		01/15/36		1,896,386
	1,703	Verizon Communications, Inc.		4.672		03/15/55		1,626,785
	425	Viacom, Inc.		5.85		09/01/43		459,740
	400	Viavi Solutions, Inc.		0.625		08/15/33		410,655
	650	Vodafone Group PLC (United Kingdom)		4.375		02/19/43		617,478
	400	Zillow Group, Inc.		2.00		12/01/21		485,452
								26,962,848
		Consumer Discretionary (0.8%)
	1,236	Sprint Spectrum Co., LLC/Sprint Spectrum Co., II LLC/ Sprint Spectrum Co., III LLC (a)		3.36		03/20/23		1,231,739
	200	Sprint Spectrum Co., LLC/Sprint Spectrum Co., II LLC/ Sprint Spectrum Co., III LLC (a)		4.738		03/20/25		201,250
								1,432,989
		Consumer, Cyclical (9.5%)
	725	Alimentation Couche-Tard, Inc. (Canada) (a)		3.55		07/26/27		697,528
	237	American Airlines Pass-Through Trust		3.20		12/15/29		227,200
	329	American Airlines Pass-Through Trust		4.00		01/15/27		330,841
	850	Aptiv PLC		3.15		11/19/20		848,977
	577	British Airways Pass-Through Trust (United Kingdom) (a)		4.625		12/20/25		599,695
	3,200	CVS Health Corp.		4.30		03/25/28		3,219,979
	675	CVS Health Corp.		4.78		03/25/38		686,299
	550	Darden Restaurants, Inc.		3.85		05/01/27		545,116
	775	Delta Air Lines, Inc.		3.625		03/15/22		774,754
	350	Dollar General Corp.		1.875		04/15/18		349,851
	500	Dollar General Corp.		3.25		04/15/23		495,856
	925	Ford Motor Co.		4.75		01/15/43		846,477
	550	Ford Motor Credit Co., LLC		3.096		05/04/23		529,239
	300	Ford Motor Credit Co., LLC		3.20		01/15/21		297,725
	600	General Motors Co.		6.60		04/01/36		689,499

See Notes to Financial Statements
9

Morgan Stanley Income Securities Inc.

Portfolio of Investments n March 29, 2018R (unaudited) continued

PRINCIPAL AMOUNT (000)			COUPON RATE			MATURITY DATE	VALUE
$	125	General Motors Co.		6.75	%	04/01/46	$	145,598
	625	General Motors Financial Co., Inc.		3.95		04/13/24		620,517
	400	Jaguar Land Rover Automotive PLC (United Kingdom) (a)		4.50		10/01/27		378,500
	250	Kohl's Corp.		5.55		07/17/45		243,206
	975	Macy's Retail Holdings, Inc.		2.875		02/15/23		920,191
	475	McDonald's Corp., MTN		4.60		05/26/45		501,876
	393	United Airlines Pass-Through Trust, Class A		4.30		02/15/27		406,023
	225	Walgreen Co.		4.40		09/15/42		211,294
	400	Walgreens Boots Alliance, Inc.		3.45		06/01/26		378,624
	225	Walgreens Boots Alliance, Inc.		3.80		11/18/24		221,910
	425	Wolverine World Wide, Inc. (a)		5.00		09/01/26		415,438
	550	Wyndham Worldwide Corp.		4.15		04/01/24		549,298
								16,131,511
		Consumer, Non-Cyclical (10.1%)
	1,050	Abbott Laboratories		3.40		11/30/23		1,041,030
	600	Abbott Laboratories		4.90		11/30/46		660,480
	375	AbbVie, Inc.		4.40		11/06/42		371,372
	325	AbbVie, Inc.		4.70		05/14/45		336,431
	473	Allergan Funding SCS		4.75		03/15/45		465,777
	899	Amgen, Inc.		4.663		06/15/51		931,954
	325	Ashtead Capital, Inc. (United Kingdom) (a)		4.125		08/15/25		312,406
	325	BAT Capital Corp. (United Kingdom) (a)		4.54		08/15/47		322,799
	375	Becton Dickinson and Co.		2.894		06/06/22		364,202
	415	Becton Dickinson and Co.		3.734		12/15/24		408,645
	350	Becton Dickinson and Co.		4.669		06/06/47		355,134
	450	Biogen, Inc.		5.20		09/15/45		493,235
	500	Celgene Corp.		3.875		08/15/25		496,144
	375	Celgene Corp.		4.55		02/20/48		369,104
	325	Cencosud SA (Chile) (a)		6.625		02/12/45		353,551
	425	Cigna Corp.		3.875		10/15/47		381,213
	275	Express Scripts Holding Co.		4.50		02/25/26		280,443
	250	Express Scripts Holding Co.		4.80		07/15/46		254,758
	400	Grupo Bimbo SAB de CV (Mexico) (a)		3.875		06/27/24		403,073
	475	Humana, Inc.		3.95		03/15/27		472,993
	307	Illumina, Inc.		0.00	(b)	06/15/19		341,180
	250	Kellogg Co.		3.25		04/01/26		237,910
	425	Kraft Heinz Foods Co.		6.50		02/09/40		505,983
	585	Kraft Heinz Foods Co.		6.875		01/26/39		724,372
	475	Kroger Co. (The)		4.45		02/01/47		450,865
	1,075	Molson Coors Brewing Co.		2.10		07/15/21		1,032,316

See Notes to Financial Statements
10

Morgan Stanley Income Securities Inc.

Portfolio of Investments n March 29, 2018R (unaudited) continued

PRINCIPAL AMOUNT (000)			COUPON RATE			MATURITY DATE	VALUE
$	525	Mylan N.V.		3.95	%	06/15/26	$	510,089
	175	Reynolds American, Inc.		5.85		08/15/45		205,465
	200	Sigma Finance Netherlands BV (Mexico) (a)		4.875		03/27/28		200,500
	200	Teva Pharmaceutical Finance Netherlands III BV (Israel)		2.80		07/21/23		169,659
	850	Teva Pharmaceutical Finance Netherlands III BV (Israel) (a)		6.75		03/01/28		841,405
	525	Thermo Fisher Scientific, Inc.		2.95		09/19/26		491,003
	350	Transurban Finance Co., Pty Ltd. (Australia) (a)		3.375		03/22/27		330,193
	415	Transurban Finance Co., Pty Ltd. (Australia) (a)		4.125		02/02/26		418,208
	300	Tyson Foods, Inc.		2.65		08/15/19		298,401
	325	Tyson Foods, Inc.		4.875		08/15/34		345,290
	990	WM Wrigley Jr. Co. (a)		2.90		10/21/19		990,714
								17,168,297
		Diversified (0.1%)
	200	Alfa SAB de CV (Mexico) (a)		5.25		03/25/24		208,500
		Energy (8.9%)
	600	Anadarko Petroleum Corp.		6.20		03/15/40		709,603
	325	Anadarko Petroleum Corp.		6.45		09/15/36		390,781
	900	Andeavor		4.75		12/15/23		936,219
	900	APT Pipelines Ltd. (Australia) (a)		4.20		03/23/25		911,746
	775	Buckeye Partners LP		4.125		12/01/27		743,213
	850	Cimarex Energy Co.		3.90		05/15/27		839,858
	675	Concho Resources, Inc.		3.75		10/01/27		661,312
	625	Enable Midstream Partners LP		3.90		05/15/24		610,561
	169	Energy Transfer Partners LP		6.125		12/15/45		175,989
	775	Energy Transfer Partners LP		6.50		02/01/42		839,683
	875	Enterprise Products Operating LLC		5.95		02/01/41		1,040,861
	700	Halliburton Co.		5.00		11/15/45		764,671
	200	Kinder Morgan Energy Partners LP		5.00		08/15/42		194,022
	875	Kinder Morgan Energy Partners LP		5.00		03/01/43		847,491
	200	Kinder Morgan, Inc.		5.55		06/01/45		210,636
	400	MPLX LP		4.00		02/15/25		398,111
	100	MPLX LP		4.875		06/01/25		104,568
	300	MPLX LP		5.20		03/01/47		314,680
	350	Noble Energy, Inc.		5.05		11/15/44		367,196
	350	Patterson-UTI Energy, Inc. (a)		3.95		02/01/28		337,820
	275	Phillips 66		5.875		05/01/42		331,632
	125	Phillips 66 Partners LP		4.68		02/15/45		122,381
	50	Plains All American Pipeline LP/PAA Finance Corp.		4.50		12/15/26		49,683
	365	Plains All American Pipeline LP/PAA Finance Corp.		6.70		05/15/36		399,364

See Notes to Financial Statements
11

Morgan Stanley Income Securities Inc.

Portfolio of Investments n March 29, 2018R (unaudited) continued

PRINCIPAL AMOUNT (000)			COUPON RATE			MATURITY DATE	VALUE
$	350	Rockies Express Pipeline LLC (a)		6.875	%	04/15/40	$	405,433
	850	Sabine Pass Liquefaction LLC		4.20		03/15/28		839,324
	425	Tallgrass Energy Partners LP/Tallgrass Energy Finance Corp. (a)		5.50		01/15/28		429,250
	350	Williams Partners LP		6.30		04/15/40		402,173
	700	Woodside Finance Ltd. (Australia) (a)		3.70		09/15/26		690,524
								15,068,785
		Finance (32.9%)
	700	ABN Amro Bank N.V. (Netherlands) (a)		4.75		07/28/25		718,473
	375	AerCap Ireland Capital DAC/AerCap Global Aviation Trust (Ireland)		3.50		05/26/22		369,758
	495	AerCap Ireland Capital DAC/AerCap Global Aviation Trust (Ireland)		3.75		05/15/19		498,234
	450	Air Lease Corp.		2.625		07/01/22		434,949
	375	Air Lease Corp.		3.375		06/01/21		375,877
	375	Alexandria Real Estate Equities, Inc.		3.95		01/15/27		367,644
	775	American International Group, Inc.		4.50		07/16/44		767,874
	465	American Tower Corp.		3.50		01/31/23		462,840
	525	Assurant, Inc.		4.20		09/27/23		528,484
	525	AvalonBay Communities, Inc., Series G		2.95		05/11/26		496,610
	800	Bank of America Corp.		4.244		04/24/38		818,383
	700	Bank of America Corp.		7.75		05/14/38		972,007
	1,610	Bank of America Corp., MTN		4.00		01/22/25		1,608,257
	2,425	Bank of America Corp., MTN		4.25		10/22/26		2,444,602
	650	BNP Paribas SA (France) (a)		3.80		01/10/24		649,248
	550	Boston Properties LP		3.65		02/01/26		538,695
	185	Boston Properties LP		3.80		02/01/24		186,372
	825	BPCE SA (France) (a)		5.15		07/21/24		862,018
	950	Brighthouse Financial, Inc. (a)		3.70		06/22/27		883,089
	925	Brixmor Operating Partnership LP		4.125		06/15/26		908,753
	300	Brookfield Finance LLC (Canada)		4.00		04/01/24		302,599
	600	Brookfield Finance, Inc. (Canada)		4.25		06/02/26		603,291
	1,400	Capital One Financial Corp.		3.20		02/05/25		1,344,803
	1,025	Capital One Financial Corp.		3.30		10/30/24		989,475
	2,950	Citigroup, Inc.		3.887		01/10/28		2,937,273
	800	Citigroup, Inc.		4.45		09/29/27		810,404
	220	Citigroup, Inc.		6.675		09/13/43		286,070
	475	Citizens Bank NA, MTN		2.55		05/13/21		464,037
	400	Colony NorthStar, Inc.		5.00		04/15/23		374,520
	350	Commerzbank AG (Germany) (a)		8.125		09/19/23		408,149

See Notes to Financial Statements
12

Morgan Stanley Income Securities Inc.

Portfolio of Investments n March 29, 2018R (unaudited) continued

PRINCIPAL AMOUNT (000)			COUPON RATE			MATURITY DATE	VALUE
$	625	Credit Agricole SA (France) (a)		3.875	%	04/15/24	$	634,615
	1,275	Credit Suisse Group AG (Switzerland) (a)		3.574		01/09/23		1,268,559
	625	Credit Suisse Group AG (Switzerland) (a)		3.869		01/12/29		607,039
	650	Credit Suisse Group Funding Guernsey Ltd. (Switzerland)		4.55		04/17/26		665,221
	500	Crown Castle International Corp.		3.40		02/15/21		502,226
	325	Crown Castle International Corp.		3.80		02/15/28		313,209
	475	Crown Castle International Corp.		4.45		02/15/26		482,999
	250	CubeSmart LP		3.125		09/01/26		232,820
	775	Deutsche Bank AG (Germany)		2.70		07/13/20		758,992
	475	Deutsche Bank AG (Germany)		3.15		01/22/21		468,229
	575	Digital Realty Trust LP		3.70		08/15/27		555,173
	320	Discover Bank		7.00		04/15/20		342,117
	420	Discover Financial Services		3.85		11/21/22		420,864
	375	Discover Financial Services		3.95		11/06/24		371,497
	138	ERP Operating LP		4.625		12/15/21		144,273
	500	Express Scripts Holding Co.		3.50		06/15/24		488,895
	325	Extra Space Storage LP (a)		3.125		10/01/35		362,508
	375	Federal Realty Investment Trust		3.625		08/01/46		333,219
	1,375	Five Corners Funding Trust (a)		4.419		11/15/23		1,437,931
	1,495	Goldman Sachs Group, Inc. (The)		6.75		10/01/37		1,876,114
	350	Goldman Sachs Group, Inc. (The), MTN		4.80		07/08/44		378,142
	375	Guardian Life Insurance Co. of America (The) (a)		4.85		01/24/77		387,596
	795	HBOS PLC, Series G (United Kingdom) (a)		6.75		05/21/18		799,186
	400	Healthcare Trust of America Holdings LP		3.70		04/15/23		399,930
	650	High Street Funding Trust I (a)		4.111		02/15/28		656,175
	440	HSBC Holdings PLC (United Kingdom)		4.25		03/14/24		442,896
	350	ING Bank N.V. (Netherlands) (a)		5.80		09/25/23		378,755
	200	ING Groep N.V. (Netherlands)		6.00		04/16/20(c)		205,500
	425	iStar, Inc.		5.25		09/15/22		412,250
	2,050	JPMorgan Chase & Co.		4.125		12/15/26		2,063,927
	825	LeasePlan Corp. N.V. (Netherlands) (a)		2.875		01/22/19		822,580
	325	Liberty Mutual Group, Inc. (a)		4.85		08/01/44		338,856
	425	Lincoln National Corp.		7.00		06/15/40		560,756
	500	Lloyds Banking Group PLC (United Kingdom)		3.10		07/06/21		497,382
	525	Lloyds Banking Group PLC (United Kingdom)		3.574		11/07/28		496,510
	365	Macquarie Bank Ltd. (Australia) (a)		6.625		04/07/21		395,536
	200	Massachusetts Mutual Life Insurance Co. (a)		4.50		04/15/65		193,856
	150	MetLife, Inc.		5.70		06/15/35		179,205
	450	MPT Operating Partnership LP/MPT Finance Corp.		5.00		10/15/27		442,260
	400	Nationwide Building Society (United Kingdom) (a)		3.90		07/21/25		404,643

See Notes to Financial Statements
13

Morgan Stanley Income Securities Inc.

Portfolio of Investments n March 29, 2018R (unaudited) continued

PRINCIPAL AMOUNT (000)			COUPON RATE			MATURITY DATE	VALUE
$	275	Nationwide Building Society (United Kingdom) (a)		4.302	%	03/08/29	$	274,734
	450	Northern Trust Corp.		3.375		05/08/32		432,752
	500	PNC Financial Services Group, Inc. (The)		3.90		04/29/24		505,774
	550	Realty Income Corp.		3.25		10/15/22		546,238
	275	Realty Income Corp.		3.65		01/15/28		267,468
	250	Realty Income Corp.		4.65		08/01/23		262,510
	875	Royal Bank of Scotland Group PLC (United Kingdom)		3.875		09/12/23		865,165
	750	Santander UK Group Holdings PLC (United Kingdom)		3.571		01/10/23		742,555
	850	Santander UK PLC (United Kingdom) (a)		5.00		11/07/23		880,546
	250	Spirit Realty Capital, Inc.		3.75		05/15/21		254,032
	775	Synchrony Bank		3.00		06/15/22		749,993
	525	Synchrony Financial		3.95		12/01/27		497,460
	250	TD Ameritrade Holding Corp.		3.30		04/01/27		244,162
	450	TD Ameritrade Holding Corp.		3.625		04/01/25		453,936
	750	Toronto-Dominion Bank (The) (Canada)		3.625		09/15/31		719,920
	850	UBS Group Funding Switzerland AG (Switzerland) (a)		3.491		05/23/23		840,750
	475	WEA Finance LLC/Westfield UK & Europe Finance PLC (a)		3.25		10/05/20		475,839
	525	Wells Fargo & Co.		3.00		10/23/26		492,187
	425	Wells Fargo & Co.		3.069		01/24/23		418,213
								56,059,463
		Industrials (4.9%)
	750	Brambles USA, Inc. (Australia) (a)		4.125		10/23/25		759,630
	385	Burlington Northern Santa Fe LLC		4.55		09/01/44		415,738
	400	Carlisle Cos., Inc.		3.50		12/01/24		392,654
	1,100	CSX Corp.		2.60		11/01/26		1,005,895
	265	Embraer Netherlands Finance BV (Brazil)		5.40		02/01/27		280,330
	500	FedEx Corp.		3.20		02/01/25		488,922
	400	General Electric Co., Series D		5.00		01/21/21(c)		396,500
	400	Harris Corp.		4.854		04/27/35		428,193
	810	Heathrow Funding Ltd. (United Kingdom) (a)		4.875		07/15/21		855,834
	300	Johnson Controls International PLC		3.90		02/14/26		301,067
	1,575	Lockheed Martin Corp.		3.55		01/15/26		1,564,495
	825	Nvent Finance Sarl (Luxembourg) (a)		3.95		04/15/23		828,348
	500	Thermo Fisher Scientific, Inc.		4.15		02/01/24		514,268
	175	Tyco Electronics Group SA (Switzerland)		3.125		08/15/27		168,790
								8,400,664

See Notes to Financial Statements
14

Morgan Stanley Income Securities Inc.

Portfolio of Investments n March 29, 2018R (unaudited) continued

PRINCIPAL AMOUNT (000)			COUPON RATE			MATURITY DATE	VALUE
		Technology (2.7%)
$	300	Akamai Technologies, Inc.		0.00	(b)%	02/15/19	$	308,243
	850	Broadcom Corp./Broadcom Cayman Finance Ltd.		3.00		01/15/22		834,798
	775	Dell International LLC/EMC Corp. (a)		8.10		07/15/36		944,625
	350	Electronics For Imaging, Inc.		0.75		09/01/19		340,165
	425	Hewlett Packard Enterprise Co.		4.90		10/15/25		441,931
	425	Nuance Communications, Inc.		1.00		12/15/35		405,237
	925	QUALCOMM, Inc.		2.60		01/30/23		887,776
	450	Verint Systems, Inc.		1.50		06/01/21		440,329
								4,603,104
		Utilities (7.8%)
	425	Abu Dhabi National Energy Co., PJSC (United Arab Emirates) (a)		4.375		06/22/26		424,243
	325	Appalachian Power Co.		3.40		06/01/25		322,009
	325	Appalachian Power Co.		7.00		04/01/38		446,426
	300	Black Hills Corp.		3.15		01/15/27		282,934
	295	CMS Energy Corp.		5.05		03/15/22		312,816
	170	CMS Energy Corp.		6.25		02/01/20		179,288
	450	Duke Energy Corp.		2.65		09/01/26		411,452
	975	EDP Finance BV (Portugal) (a)		3.625		07/15/24		961,281
	350	Enel Finance International N.V. (Italy) (a)		6.00		10/07/39		412,368
	210	Enel SpA (Italy) (a)		8.75		09/24/73		249,638
	325	Entergy Arkansas, Inc.		3.50		04/01/26		324,524
	2,400	Exelon Generation Co., LLC		4.00		10/01/20		2,439,658
	475	Fortis, Inc., Series WI (Canada)		2.10		10/04/21		454,456
	400	ITC Holdings Corp. (a)		3.35		11/15/27		382,868
	750	Mississippi Power Co.		3.95		03/30/28		756,205
	350	NextEra Energy Capital Holdings, Inc.		3.55		05/01/27		340,776
	350	Oncor Electric Delivery Co., LLC		2.95		04/01/25		337,960
	350	Origin Energy Finance Ltd. (Australia) (a)		3.50		10/09/18		350,720
	900	Sempra Energy		3.55		06/15/24		895,837
	425	Southern Co. (The)		4.40		07/01/46		427,096
	650	Southern Power Co., Series 15B		2.375		06/01/20		641,293
	23	Toledo Edison Co. (The)		7.25		05/01/20		24,681
	850	Trans-Allegheny Interstate Line Co. (a)		3.85		06/01/25		856,599
	773	TransAlta Corp. (Canada)		4.50		11/15/22		784,216
	300	Xcel Energy, Inc.		3.30		06/01/25		294,910
								13,314,254
		Total Corporate Bonds (Cost $166,986,909)						167,552,897

See Notes to Financial Statements
15

Morgan Stanley Income Securities Inc.

Portfolio of Investments n March 29, 2018R (unaudited) continued

PRINCIPAL AMOUNT (000)			COUPON RATE			MATURITY DATE			VALUE
		Asset-Backed Securities (1.1%)
		CVS Pass-Through Trust
$	969			6.036	%	12/10/28			$	1,047,570
	652	(a)		8.353		07/10/31				802,937
		Total Asset-Backed Securities (Cost $1,630,473)								1,850,507
		Short-Term Investment (0.9%)
		U.S. Treasury Security
	1,505	U.S. Treasury Bill (d)(e) (Cost $1,495,432)		1.80		08/09/18				1,495,159
		Total Investments (Cost $170,112,814) (f)(g)					100.3	%		170,898,563
		Liabilities in Excess of Other Assets					(0.3	)		(545,075	)
		Net Assets					100.0	%	$	170,353,488

R March 29, 2018 represents the last business day of the Fund's semi-annual period.

MTN Medium Term Note.

PJSC Public Joint Stock Company.

(a) 144A security - Certain conditions for public sale may exist. Unless otherwise noted, these securities are deemed to be liquid.

(b) Capital appreciation bond.

(c) Perpetual - One or more securities do not have a predetermined maturity date. Rates for these securities are fixed for a period of time, after which they revert to a floating rate. Interest rates in effect are as of March 29, 2018.

(d) Rate shown is the yield to maturity at March 29, 2018.

(e) All or a portion of the security was pledged to cover margin requirements for futures contracts and swap agreements.

(f) Securities are available for collateral in connection with open futures contracts and swap agreements.

(g) At March 29, 2018, the aggregate cost for federal income tax purposes approximates the aggregate cost for book purposes. The aggregate gross unrealized appreciation is $4,352,830 and the aggregate gross unrealized depreciation is $3,191,763, resulting in net unrealized appreciation of $1,161,067.

Futures Contracts:

The Fund had the following futures contracts open at March 29, 2018:

	NUMBER OF CONTRACTS		EXPIRATION DATE	NOTIONAL AMOUNT (000)			VALUE			UNREALIZED
Long:
U.S. Treasury 2 yr. Note		115	Jun-18		23,000		$	24,450,078		$	11,812
U.S. Treasury Ultra Bond		56	Jun-18		5,600			8,986,250			322,180
Short:
U.S. Treasury Long Bond		2	Jun-18		(200	)		(293,250	)		(6,625	)
U.S. Treasury 5 yr. Note		39	Jun-18		(3,900	)		(4,463,976	)		(16,609	)
U.S. Treasury 10 yr. Note		46	Jun-18		(4,600	)		(5,572,469	)		(59,969	)
U.S. Treasury 10 yr. Ultra Long Bond		78	Jun-18		(7,800	)		(10,129,031	)		(111,988	)
										$	138,801

See Notes to Financial Statements
16

Morgan Stanley Income Securities Inc.

Portfolio of Investments n March 29, 2018R (unaudited) continued

Credit Default Swap Agreement:

The Fund had the following credit default swap agreement open at March 29, 2018:

SWAP COUNTERPARTY AND REFERENCE OBLIGATION				CREDIT RATING OF REFERENCE OBLIGATION†				BUY/SELL PROTECTION				PAY/ RECEIVE FIXED RATE				PAYMENT FREQUENCY				MATURITY DATE				NOTIONAL AMOUNT (000)				VALUE				UPFRONT PAYMENT PAID				UNREALIZED
Barclays Bank PLC Quest Diagnostics, Inc.				BBB+				Buy					1.00	%		Quarterly				3/20/19				$	795			$	(7,442	)		$	15,258			$	(22,700	)

Interest Rate Swap Agreements:

The Fund had the following interest rate swap agreements open at March 29, 2018:

SWAP COUNTERPARTY	FLOATING RATE INDEX	PAY/ RECEIVE FLOATING RATE	FIXED RATE			PAYMENT FREQUENCY PAID/ RECEIVED	MATURITY DATE	NOTIONAL AMOUNT (000)		VALUE		UPFRONT PAYMENT PAID		UNREALIZED
Morgan Stanley & Co., LLC*	3 Month LIBOR	Receive		2.48	%	Semi-Annual/ Quarterly	12/21/26	$	6,674	$	120,503	$	—	$	120,503
Morgan Stanley & Co., LLC*	3 Month LIBOR	Receive		2.56		Semi-Annual/ Quarterly	11/9/47		2,450		138,714		—		138,714
										$	259,217	$	—	$	259,217

† Credit rating as issued by Standard & Poor's.

* Cleared swap agreement, the broker is Morgan Stanley & Co., LLC.

LIBOR London Interbank Offered Rate.

See Notes to Financial Statements
17

Morgan Stanley Income Securities Inc.

Financial Statements

Statement of Assets and Liabilities March 29, 2018R (unaudited)

Assets:
Investments in securities, at value (cost $170,112,814)	$	170,898,563
Cash (including foreign currency valued at $1 with a cost of $1)		244,429
Receivable for:
Interest		1,673,545
Upfront payments paid on open swap agreements		15,258
Variation margin on open swap agreements		451
Variation margin on open futures contracts		46
Prepaid expenses and other assets		323,750
Total Assets		173,156,042
Liabilities:
Unrealized depreciation on open swap agreements		22,700
Payable for:
Investments purchased		2,372,811
Advisory fee		60,669
Directors' fees		48,353
Administration fee		11,556
Transfer agent fees		4,759
Deferred capital gain country tax		55,634
Accrued expenses and other payables		226,072
Total Liabilities		2,802,554
Net Assets	$	170,353,488
Composition of Net Assets:
Paid-in-capital	$	169,285,646
Net unrealized appreciation (Net of $55,634 of deferred capital gain country tax)		1,105,433
Undistributed net investment income		127,571
Accumulated net realized loss		(165,162	)
Net Assets	$	170,353,488
Net Asset Value Per Share
8,963,335 shares outstanding (15,000,000 shares authorized of $0.01 par value)	$	19.01

R March 29, 2018 represents the last business day of the Fund's semi-annual period.

See Notes to Financial Statements
18

Morgan Stanley Income Securities Inc.

Financial Statements

Statement of Operations For the six months ended March 29, 2018R (unaudited)

Net Investment Income:
Interest Income	$	3,383,471
Expenses
Advisory fee (Note 4)		364,066
Merger expense		123,209
Administration fee (Note 4)		69,346
Professional fees		38,162
Shareholder reports and notices		13,065
Transfer agent fees		11,187
Custodian fees		10,498
Directors' fees and expenses		5,016
Other		27,120
Total Expenses		661,669
Net Investment Income		2,721,802
Realized and Unrealized Gain (Loss): Realized Gain (Loss) on:
Investments		650,988
Futures contracts		(169,769	)
Swap agreements		(44,885	)
Net Realized Gain		436,334
Change in Unrealized Appreciation (Depreciation) on:
Investments (Net of increase in deferred capital gain country tax of $55,634)		(5,902,168	)
Futures contracts		145,225
Swap agreements		441,211
Net Change in Unrealized Appreciation (Depreciation)		(5,315,732	)
Net Loss		(4,879,398	)
Net Decrease	$	(2,157,596	)

R March 29, 2018 represents the last business day of the Fund's semi-annual period.

See Notes to Financial Statements
19

Morgan Stanley Income Securities Inc.

Financial Statements

Statements of Changes in Net Assets

	FOR THE SIX MONTHS ENDED MARCH 29, 2018R			FOR THE YEAR ENDED SEPTEMBER 30, 2017
	(unaudited)
Increase (Decrease) in Net Assets: Operations:
Net investment income	$	2,721,802		$	5,542,103
Net realized gain		436,334			2,901,062
Net change in unrealized appreciation (depreciation)		(5,315,732	)		(3,642,266	)
Net Increase (Decrease)		(2,157,596	)		4,800,899
Dividends and Distributions to Shareholders from:
Net investment income		(2,555,654	)		(6,576,329	)
Net realized gain		(8,623	)		—
Total Dividends and Distributions		(2,564,277	)		(6,576,329	)
Net Decrease		(4,721,873	)		(1,775,430	)
Net Assets:
Beginning of period		175,075,361			176,850,791
End of Period (Including undistributed net investment income of $127,571 and dividends in excess of net investment income of $(38,577), respectively)	$	170,353,488		$	175,075,361

R March 29, 2018 represents the last business day of the Fund's semi-annual period.

See Notes to Financial Statements
20

Morgan Stanley Income Securities Inc.

Notes to Financial Statements n March 29, 2018 (unaudited)

1. Organization and Accounting Policies

Morgan Stanley Income Securities Inc. (the "Fund") is registered under the Investment Company Act of 1940, as amended (the "Act"), as a diversified, closed-end management investment company. The Fund applies investment company accounting and reporting guidance. The Fund's primary investment objective is to provide as high a level of current income for distribution to shareholders as is consistent with prudent investment risk and, as a secondary objective, capital appreciation. The Fund was organized as a Maryland corporation on December 21, 1972 and commenced operations on April 6, 1973.

The following is a summary of significant accounting policies:

A. Valuation of Investments — (1) Certain portfolio securities may be valued by an outside pricing service/vendor approved by the Fund's Board of Directors (the "Directors"). The pricing service/vendor may employ a pricing model that takes into account, among other things, bids, yield spreads, and/or other market data and specific security characteristics. Alternatively, if a valuation is not available from an outside pricing service/vendor, and the security trades on an exchange, the security may be valued at its latest reported sale price (or at the exchange official closing price if such exchange reports an official closing price), prior to the time when assets are valued. If there are no sales on a given day and if there is no official exchange closing price for that day, the security is valued at the mean between the last reported bid and asked prices if such bid and asked prices are available in the relevant exchanges; (2) portfolio securities for which over-the-counter ("OTC") market quotations are readily available are valued at its latest reported sales price (or at the market official closing price if such market reports an official closing price), and if there was no trading in the security on a given day and if there is no official closing price from relevant markets for that day, the security is valued at the mean between the last reported bid and asked prices if such bid and asked prices are available on the relevant markets; (3) futures are valued at the settlement price on the exchange on which they trade or, if a settlement price is unavailable, at the last sale price on the exchange; (4) OTC swaps may be valued by an outside pricing service approved by the Directors or quotes from a broker or dealer. Swaps cleared on a clearinghouse or exchange may be valued using the closing price provided by the clearinghouse or exchange; (5) when market quotations are not readily available, including circumstances under which Morgan Stanley Investment Management Inc. (the "Adviser"), a wholly-owned subsidiary of Morgan Stanley, determines that the market quotations are not reflective of a security's market value, portfolio securities are valued at their fair value as determined in good faith under procedures established by and under the general supervision of the Directors; and (6) quotations of foreign portfolio securities, other assets and liabilities and forward contracts stated in foreign currency are translated into U.S. dollar equivalents at the prevailing market rates prior to the close of the New York Stock Exchange ("NYSE").

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The Directors have responsibility for determining in good faith the fair value of the investments, and the Directors may appoint others, such as the Fund's Adviser or a valuation committee, to assist the Directors in determining fair value and to make the actual calculations pursuant to the fair valuation methodologies previously approved by the Directors. Under procedures approved by the Directors, the Fund's Adviser has formed a Valuation Committee whose members are approved by the Directors. The Valuation Committee provides administration and oversight of the Fund's valuation policies and procedures, which are reviewed at least annually by the Directors. These procedures allow the Fund to utilize independent pricing services, quotations from securities and financial instrument dealers, and other market sources to determine fair value.

The Fund has procedures to determine the fair value of securities and other financial instruments for which market prices are not readily available. Under these procedures, the Valuation Committee convenes on a regular and ad hoc basis to review such securities and considers a number of factors, including valuation methodologies and significant unobservable valuation inputs, when arriving at fair value. The Valuation Committee may employ a market-based approach which may use related or comparable assets or liabilities, recent transactions, market multiples, book values and other relevant information for the investment to determine the fair value of the investment. An income-based valuation approach may also be used in which the anticipated future cash flows of the investment are discounted to calculate fair value. Discounts may also be applied due to the nature or duration of any restrictions on the disposition of the investments. Due to the inherent uncertainty of valuations of such investments, the fair values may differ significantly from the values that would have been used had an active market existed. The Valuation Committee employs various methods for calibrating these valuation approaches including a regular review of valuation methodologies, key inputs and assumptions, transactional back-testing or disposition analysis, and reviews of any related market activity.

B. Accounting for Investments — Security transactions are accounted for on the trade date (date the order to buy or sell is executed). Realized gains and losses on security transactions are determined by the identified cost method. Discounts are accreted and premiums are amortized over the life of the respective securities and are included in interest income. Interest income is accrued daily as earned.

C. Dividends and Distributions to Shareholders — Dividends and distributions to shareholders are recorded on the ex-dividend date. Dividends from net investment income, if any, are declared and paid monthly. Net realized capital gains, if any, are distributed at least annually.

D. Foreign Currency Translation and Foreign Investments — The books and records of the Fund are maintained in U.S. dollars. Foreign currency amounts are translated into U.S. dollars as follows:

— investments, other assets and liabilities at the prevailing rate of exchange on the valuation date;

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— investment transactions and investment income at the prevailing rates of exchange on the dates of such transactions.

Although the net assets of the Fund are presented at the foreign exchange rates and market values at the close of the period, the Fund does not isolate that portion of the results of operations arising as a result of changes in the foreign exchange rates from the fluctuations arising from changes in the market prices of securities held at period end. Similarly, the Fund does not isolate the effect of changes in foreign exchange rates from the fluctuations arising from changes in the market prices of securities sold during the period. Accordingly, realized and unrealized foreign currency gains (losses) on investments in securities are included in the reported net realized and unrealized gains (losses) on investment transactions and balances. However, pursuant to U.S. federal income tax regulations, gains and losses from certain foreign currency transactions and the foreign currency portion of gains and losses realized on sales and maturities of foreign denominated debt securities are treated as ordinary income for U.S. federal income tax purposes.

Net realized gains (losses) on foreign currency transactions represent net foreign exchange gains (losses) from foreign currency forward exchange contracts, disposition of foreign currencies, currency gains (losses) realized between the trade and settlement dates on securities transactions, and the difference between the amount of investment income and foreign withholding taxes recorded on the Fund's books and the U.S. dollar equivalent amounts actually received or paid. Net unrealized currency gains (losses) from valuing foreign currency denominated assets and liabilities at period end exchange rates are reflected as a component of unrealized appreciation (depreciation) in the Statement of Assets and Liabilities. The change in unrealized currency gains (losses) on foreign currency translations for the period is reflected in the Statement of Operations.

Foreign security and currency transactions may involve certain considerations and risks not typically associated with those of U.S. dollar denominated transactions as a result of, among other factors, fluctuations of exchange rates in relation to the U.S. dollar, the possibility of lower levels of governmental supervision and regulation of foreign securities markets and the possibility of political or economic instability.

E. Use of Estimates — The preparation of financial statements in accordance with generally accepted accounting principles in the United States ("GAAP") requires management to make estimates and assumptions that affect the reported amounts and disclosures. Actual results could differ from those estimates.

F. Indemnifications — The Fund enters into contracts that contain a variety of indemnifications. The Fund's maximum exposure under these arrangements is unknown. However, the Fund has not had prior claims or losses pursuant to these contracts and expects the risk of loss to be remote.

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2. Fair Valuation Measurements

Financial Accounting Standards Board ("FASB") Accounting Standards Codification^TM ("ASC") 820, "Fair Value Measurement" ("ASC 820"), defines fair value as the value that the Fund would receive to sell an investment or pay to transfer a liability in a timely transaction with an independent buyer in the principal market, or in the absence of a principal market, the most advantageous market for the investment or liability. ASC 820 establishes a three-tier hierarchy to distinguish between (1) inputs that reflect the assumptions market participants would use in valuing an asset or liability developed based on market data obtained from sources independent of the reporting entity (observable inputs); and (2) inputs that reflect the reporting entity's own assumptions about the assumptions market participants would use in valuing an asset or liability developed based on the best information available in the circumstances (unobservable inputs) and to establish classification of fair value measurements for disclosure purposes. Various inputs are used in determining the value of the Fund's investments. The inputs are summarized in the three broad levels listed below.

• Level 1 — unadjusted quoted prices in active markets for identical investments

• Level 2 — other significant observable inputs (including quoted prices for similar investments, interest rates, prepayment speeds, credit risk, etc.)

• Level 3 — significant unobservable inputs including the Fund's own assumptions in determining the fair value of investments. Factors considered in making this determination may include, but are not limited to, information obtained by contacting the issuer, analysts, or the appropriate stock exchange (for exchange-traded securities), analysis of the issuer's financial statements or other available documents and, if necessary, available information concerning other securities in similar circumstances

The inputs or methodology used for valuing securities are not necessarily an indication of the risk associated with investing in those securities and the determination of the significance of a particular input to the fair value measurement in its entirety requires judgment and considers factors specific to each security.

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The following is a summary of the inputs used to value the Fund's investments as of March 29, 2018:

INVESTMENT TYPE	LEVEL 1 UNADJUSTED QUOTED PRICES			LEVEL 2 OTHER SIGNIFICANT OBSERVABLE INPUTS			LEVEL 3 SIGNIFICANT UNOBSERVABLE INPUTS		TOTAL
Assets:
Fixed Income Securities
Corporate Bonds	$	—		$	167,552,897		$	—	$	167,552,897
Asset-Backed Securities		—			1,850,507			—		1,850,507
Total Fixed Income Securities		—			169,403,404			—		169,403,404
Short-Term Investment
U.S. Treasury Security		—			1,495,159			—		1,495,159
Futures Contracts		333,992			—			—		333,992
Interest Rate Swap Agreements		—			259,217			—		259,217
Total Assets		333,992			171,157,780			—		171,491,772
Liabilities:
Futures Contracts		(195,191	)		—			—		(195,191	)
Credit Default Swap Agreement		—			(22,700	)		—		(22,700	)
Total Liabilities		(195,191	)		(22,700	)		—		(217,891	)
Total	$	138,801		$	171,135,080		$	—	$	171,273,881

Transfers between investment levels may occur as the markets fluctuate and/or the availability of data used in an investment's valuation changes. The Fund recognizes transfers between the levels as of the end of the period. As of March 29, 2018, the Fund did not have any investments transfer between investment levels.

3. Derivatives

The Fund may, but it is not required to, use derivative instruments for a variety of purposes, including hedging, risk management, portfolio management or to earn income. Derivatives are financial instruments whose value is based, in part, on the value of an underlying asset, interest rate, index or financial instrument. Prevailing interest rates and volatility levels, among other things, also affect the value of derivative instruments. A derivative instrument often has risks similar to its underlying asset and may have additional risks, including imperfect correlation between the value of the derivative and the underlying asset, risks of default by the counterparty to certain transactions, magnification of losses incurred due to changes in the market value of the securities, instruments, indices or interest rates to which the derivative instrument relates, risks that the transactions may not be liquid and risks arising from margin requirements. The use of derivatives involves risks that are different from, and possibly greater than, the risks associated with other portfolio investments. Derivatives may involve the

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use of highly specialized instruments that require investment techniques and risk analyses different from those associated with other portfolio investments. All of the Fund's holdings, including derivative instruments, are marked-to-market each day with the change in value reflected in unrealized appreciation (depreciation). Upon disposition, a realized gain or loss is recognized.

Certain derivative transactions may give rise to a form of leverage. Leverage magnifies the potential for gain and risk of loss. Leverage associated with derivative transactions may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet earmarking or segregation requirements, pursuant to applicable Securities and Exchange Commission rules and regulations, or may cause the Fund to be more volatile than if the Fund had not been leveraged. Although the Adviser seeks to use derivatives to further the Fund's investment objectives, there is no assurance that the use of derivatives will achieve this result.

Following is a description of the derivative instruments and techniques that the Fund used during the period and their associated risks:

Futures — A futures contract is a standardized, exchange-traded agreement to buy or sell a specific quantity of an underlying asset, reference rate or index at a specific price at a specific future time. The value of a futures contract tends to increase and decrease in tandem with the value of the underlying instrument. Depending on the terms of the particular contract, futures contracts are settled through either physical delivery of the underlying instrument on the settlement date or by payment of a cash settlement amount on the settlement date. During the period the futures contract is open, payments are received from or made to the broker based upon changes in the value of the contract (the variation margin). A decision as to whether, when and how to use futures contracts involves the exercise of skill and judgment and even a well-conceived futures transaction may be unsuccessful because of market behavior or unexpected events. In addition to the derivatives risks discussed above, the prices of futures contracts can be highly volatile, using futures contracts can lower total return, and the potential loss from futures contracts can exceed the Fund's initial investment in such contracts. No assurance can be given that a liquid market will exist for any particular futures contract at any particular time. There is also the risk of loss by the Fund of margin deposits in the event of bankruptcy of a broker with which the Fund has open positions in the futures contract.

Swaps — The Fund may enter into OTC swap contracts or cleared swap transactions. An OTC swap contract is an agreement between two parties pursuant to which the parties exchange payments at specified dates on the basis of a specified notional amount, with the payments calculated by reference to specified securities, indices, reference rates, currencies or other instruments. Typically swap agreements provide that when the period payment dates for both parties are the same, the payments are made on a net basis (i.e., the two payment streams are netted out, with only the net amount paid by one party to the other). The Fund's obligations or rights under a swap contract entered into on a net

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basis will generally be equal only to the net amount to be paid or received under the agreement, based on the relative values of the positions held by each party. Cleared swap transactions may help reduce counterparty credit risk. In a cleared swap, the Fund's ultimate counterparty is a clearinghouse rather than a swap dealer, bank or other financial institution. OTC swap agreements are not entered into or traded on exchanges and often there is no central clearing or guaranty function for OTC swaps. These OTC swaps are often subject to credit risk or the risk of default or non-performance by the counterparty. Both OTC and cleared swaps could result in losses if interest rates, foreign currency exchange rates or other factors are not correctly anticipated by the Fund or if the reference index, security or investments do not perform as expected. During the period swap agreements are open, payments are received from or made to the clearinghouse or counterparty based upon changes in the value of the contract (variation margin). The Dodd-Frank Wall Street Reform and Consumer Protection Act and related regulatory developments require the clearing and exchange-trading of certain standardized swap transactions. Mandatory exchange-trading and clearing is occurring on a phased-in basis.

The Fund's use of swaps during the period included those based on the credit of an underlying security commonly referred to as "credit default swaps." The Fund may be either the buyer or seller in a credit default swap. Where the Fund is the buyer of a credit default swap contract, it would typically be entitled to receive the par (or other agreed-upon) value of a referenced debt obligation from the counterparty to the contract only in the event of a default or similar event by the issuer of the debt obligation. If no default occurs, the Fund would have paid to the counterparty a periodic stream of payments over the term of the contract and received no benefit from the contract. When the Fund is the seller of a credit default swap contract, it typically receives the stream of payments but is obligated to pay an amount equal to the par (or other agreed-upon) value of a referenced debt obligation upon the default or similar event by the issuer of the referenced debt obligation. The use of credit default swaps could result in losses to the Fund if the Adviser fails to correctly evaluate the creditworthiness of the issuer of the referenced debt obligation.

If the Fund is a seller of protection and a credit event occurs, as defined under the terms of that particular swap agreement, the Fund will either (i) pay to the buyer of protection an amount equal to the notional amount of the swap agreement and take delivery of the referenced obligation, other deliverable obligations or underlying securities comprising the referenced index or (ii) pay a net settlement amount in the form of cash or securities equal to the notional amount of the swap agreement less the recovery value of the referenced obligation or underlying securities comprising the referenced index. If the Fund is a buyer of protection and a credit event occurs, as defined under the terms of that particular swap agreement, the Fund will either (i) receive from the seller of protection an amount equal to the notional amount of the swap agreement and deliver the referenced obligation, other deliverable obligations or underlying securities comprising the referenced index or (ii) receive a net settlement amount in the form of cash or securities equal to the notional amount of the swap agreement less the recovery value of the referenced obligation or underlying securities comprising the referenced index. Recovery values are estimated by market

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makers considering either industry standard recovery rates or entity specific factors and considerations until a credit event occurs. If a credit event has occurred, the recovery value is determined by a facilitated auction whereby a minimum number of allowable broker bids, together with a specified valuation method, are used to calculate the settlement value. The Fund's maximum risk of loss from counterparty risk, either as the protection seller or as the protection buyer, is the fair value of the swap agreement.

The current credit rating of each individual issuer is listed in the table following the Fund of Investments and serves as an indicator of the current status of the payment/performance risk of the credit derivative. Alternatively, for credit default swaps on an index of credits, the quoted market prices and current values serve as an indicator of the current status of the payment/performance risk of the credit derivative. Generally, lower credit ratings and increasing market values, in absolute terms, represent a deterioration of the credit and a greater likelihood of an adverse credit event of the issuer.

When the Fund has an unrealized loss on a swap agreement, the Fund has instructed the custodian to pledge cash or liquid securities as collateral with a value approximately equal to the amount of the unrealized loss. Collateral pledges are monitored and subsequently adjusted if and when the swap valuations fluctuate. If applicable, cash collateral is included with "Due from (to) broker" in the Statement of Assets and Liabilities.

Upfront payments paid or received by the Fund will be reflected as an asset or liability, respectively, in the Statement of Assets and Liabilities.

FASB ASC 815, "Derivatives and Hedging" ("ASC 815"), is intended to improve financial reporting about derivative instruments by requiring enhanced disclosures to enable investors to better understand how and why the Fund uses derivative instruments, how these derivative instruments are accounted for and their effects on the Fund's financial position and results of operations.

The following table sets forth the fair value of the Fund's derivative contracts by primary risk exposure as of March 29, 2018:

PRIMARY RISK EXPOSURE	ASSET DERIVATIVES STATEMENT OF ASSETS AND LIABILITIES LOCATION	FAIR VALUE			LIABILITY DERIVATIVES STATEMENT OF ASSETS AND LIABILITIES LOCATION	FAIR VALUE
Interest Rate Risk	Variation margin on open futures contracts	$	333,992	(a)	Variation margin on open futures contracts	$	(195,191	)(a)
Credit Risk	Unrealized appreciation on open swap agreement		—		Unrealized depreciation on open swap agreement		(22,700	)
Interest Rate Risk	Variation margin on open swap agreements		259,217	(a)	Variation margin on open swap agreements		—
		$	593,209			$	(217,891	)

(a) Includes cumulative appreciation (depreciation) as reported in the Portfolio of Investments. Only current day's net variation margin is reported within the Statement of Assets and Liabilities.

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The following tables set forth by primary risk exposure the Fund's realized gains (losses) and change in unrealized appreciation (depreciation) by type of derivative contract for the six months ended March 29, 2018 in accordance with ASC 815:

AMOUNT OF REALIZED GAIN (LOSS) ON DERIVATIVES

PRIMARY RISK EXPOSURE	FUTURES CONTRACTS			SWAP AGREEMENTS
Interest Rate Risk	$	(169,769	)	$	(40,888	)
Credit Risk		—			(3,997	)
Total	$	(169,769	)	$	(44,885	)

CHANGE IN UNREALIZED APPRECIATION (DEPRECIATION) ON DERIVATIVES

PRIMARY RISK EXPOSURE	FUTURES CONTRACTS		SWAP AGREEMENTS
Interest Rate Risk	$	145,225	$	437,693
Credit Risk		—		3,518
Total	$	145,225	$	441,211

At March 29, 2018, the Fund's derivative assets and liabilities are as follows:

GROSS AMOUNTS OF ASSETS AND LIABILITIES PRESENTED IN THE STATEMENT OF ASSETS AND LIABILITIES

DERIVATIVES (b)				ASSETS (c)				LIABILITIES (c)
Swap Agreement				$	—			$	(22,700	)

(b) Excludes exchange-traded derivatives.

(c) Absent an event of default or early termination, OTC derivative assets and liabilities are presented gross and not offset in the Statement of Assets and Liabilities.

The Fund typically enters into International Swaps and Derivatives Association, Inc. Master Agreements ("ISDA Master Agreements") or similar master agreements (collectively, "Master Agreements") with its contract counterparties for certain OTC derivatives in order to, among other things, reduce its credit risk to counterparties. ISDA Master Agreements include provisions for general obligations, representations, collateral and events of default or termination. Under an ISDA Master Agreement, the Fund typically may offset with the counterparty certain OTC derivative financial instruments' payables and/or receivables with collateral held and/or posted and create one single net payment (close-out netting) in the event of default, termination and/or potential deterioration in the credit quality of the counterparty. Various Master Agreements govern the terms of certain transactions with counterparties, including transactions such as swap, forward, repurchase and reverse repurchase agreements. These Master Agreements typically attempt to reduce the counterparty risk associated with such transactions by specifying credit protection mechanisms and providing standardization that improves legal certainty.

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Cross-termination provisions under Master Agreements typically provide that a default in connection with one transaction between the Fund and a counterparty gives the non-defaulting party the right to terminate any other transactions in place with the defaulting party to create one single net payment due to/due from the defaulting party and may be a feature in certain Master Agreements. In the event the Fund exercises its right to terminate a Master Agreement after a counterparty experiences a termination event as defined in the Master Agreement, the return of collateral with market value in excess of the Fund's net liability may be delayed or denied.

The following table presents derivative financial instruments that are subject to enforceable netting arrangements as of March 29, 2018:

GROSS AMOUNTS NOT OFFSET IN THE STATEMENT OF ASSETS AND LIABILITIES

COUNTERPARTY				GROSS LIABILITIES DERIVATIVES PRESENTED IN THE STATEMENT OF ASSETS AND LIABILITIES				FINANCIAL INSTRUMENT				COLLATERAL PLEDGED				NET AMOUNT (NOT LESS THAN $0)
Barclays Bank PLC				$	22,700			$	—			$	—			$	22,700

For the six months ended March 29, 2018, the average monthly amount outstanding for each derivative type is as follows:

Futures Contracts:
Average monthly original value	$	41,703,000
Swap Agreements:
Average monthly notional amount	$	9,894,285

4. Advisory/Administration Agreements

Pursuant to an Investment Advisory Agreement with the Adviser, the Fund pays an advisory fee, accrued daily and paid monthly, by applying the following annual rates to the Fund: 0.42% to the portion of the average weekly net assets not exceeding $500 million and 0.35% to the portion of the average weekly net assets exceeding $500 million. For the six months ended March 29, 2018, the advisory fee rate was equivalent to an annual effective rate of 0.42% of the Fund's average weekly net assets.

The Adviser also serves as the Administrator to the Fund and provides administrative services pursuant to an Administration Agreement for an annual fee, accrued daily and paid monthly, of 0.08% of the Fund's average weekly net assets.

Under a Sub-Administration Agreement between the Administrator and State Street Bank and Trust Company ("State Street"), State Street provides certain administrative services to the Fund. For such services, the Administrator pays State Street a portion of the fee the Administrator receives from the Fund.

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5. Security Transactions and Transactions with Affiliates

The cost of purchases and proceeds from sales of investment securities, excluding short-term investments, for the six months ended March 29, 2018, aggregated $33,950,188 and $30,208,883, respectively. There were no purchases or sales of U.S. Government securities.

The Fund has an unfunded noncontributory defined benefit pension plan covering certain independent Directors of the Fund who will have served as independent Directors for at least five years at the time of retirement. Benefits under this plan are based on factors which include years of service and compensation. The Directors voted to close the plan to new participants and eliminate the future benefits growth due to increases to compensation after July 31, 2003. Aggregate pension costs for the six months ended March 29, 2018, included in "Directors' fees and expenses" in the Statement of Operations amounted to $1,369. At March 29, 2018, the Fund had an accrued pension liability of $48,353, which is reflected as "Directors' fees" in the Statement of Assets and Liabilities.

The Fund is permitted to purchase and sell securities ("cross-trade") from and to other Morgan Stanley Funds as well as other funds and client accounts for which the Adviser or an affiliate of the Adviser serves as investment adviser, pursuant to procedures approved by the Directors in compliance with Rule 17a-7 under the Act (the "Rule"). Each cross-trade is executed at the current market price in compliance with provisions of the Rule. For the six months ended March 29, 2018, the Fund did not engage in any cross-trade transactions.

The Fund has an unfunded Deferred Compensation Plan (the "Compensation Plan"), which allows each independent Director to defer payment of all, or a portion, of the fees he or she receives for serving on the Board of Directors. Each eligible Director generally may elect to have the deferred amounts credited with a return equal to the total return on one or more of the Morgan Stanley funds that are offered as investment options under the Compensation Plan. Appreciation/depreciation and distributions received from these investments are recorded with an offsetting increase/decrease in the deferred compensation obligation and do not affect the net asset value ("NAV") of the Fund.

6. Capital Stock

As permitted by the Fund's offering prospectus, on December 12, 1995, the Fund commenced a share repurchase program for the purposes of enhancing shareholder value and reducing the discount at which the Fund's shares trade from their net asset value. During the six months ended March 29, 2018, the Fund did not repurchase any of its shares. Since the inception of the program, the Fund has repurchased 3,237,183 of its shares at an average discount of 8.86% from net asset value per share. The Directors regularly monitor the Fund's share repurchase program as part of their review and consideration of the Fund's premium/discount history. The Fund expects to continue to repurchase its

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outstanding shares at such time and in such amounts as it believes will further the accomplishment of the foregoing objectives, subject to review by the Directors.

7. Custodian Fees

State Street (the "Custodian") also serves as Custodian for the Fund in accordance with a Custodian Agreement. The Custodian holds cash, securities, and other assets of the Fund as required by the Act. Custody fees are payable monthly based on assets held in custody, investment purchases and sales activity and account maintenance fees, plus reimbursement for certain out-of-pocket expenses.

8. Dividends

The Fund declared the following dividends from net investment income subsequent to March 29, 2018:

DECLARATION
DATE

AMOUNT
PER SHARE

RECORD DATE

PAYABLE DATE

April 10, 2018

0.0425

April 20, 2018

April 27, 2018

May 8, 2018

0.0675

May 18, 2018

May 25, 2018

9. Federal Income Tax Status

It is the Fund's intention to continue to qualify as a regulated investment company and distribute all of its taxable and tax-exempt income. Accordingly, no provision for federal income taxes is required in the financial statements.

The Fund may be subject to taxes imposed by countries in which it invests. Such taxes are generally based on income and/or capital gains earned or repatriated. Taxes are accrued based on net investment income, net realized gains and net unrealized appreciation as such income and/or gains are earned. Taxes may also be based on transactions in foreign currency and are accrued based on the value of investments denominated in such currency.

FASB ASC 740-10, "Income Taxes — Overall", sets forth a minimum threshold for financial statement recognition of the benefit of a tax position taken or expected to be taken in a tax return. Management has concluded that there are no significant uncertain tax positions that would require recognition in the financial statements. If applicable, the Fund recognizes interest accrued related to unrecognized tax benefits in "Interest Expense" and penalties in "Other Expenses" in the Statement of Operations. The Fund files tax returns with the U.S. Internal Revenue Service, New York and various states. Each of the tax years in the four-year period ended September 30, 2017, remains subject to examination by taxing authorities.

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The tax character of distributions paid may differ from the character of distributions shown in the Statements of Changes in Net Assets due to short-term capital gains being treated as ordinary income for tax purposes. The tax character of distributions paid during fiscal years 2017 and 2016 was as follows:

2017 DISTRIBUTIONS PAID FROM:				2016 DISTRIBUTIONS PAID FROM:
ORDINARY INCOME		LONG-TERM CAPITAL GAIN		ORDINARY INCOME		LONG-TERM CAPITAL GAIN
$	6,576,329	$	—	$	6,204,590	$	3,930,717

The amount and character of income and gains to be distributed are determined in accordance with income tax regulations which may differ from GAAP. These book/tax differences are either considered temporary or permanent in nature.

Temporary differences are attributable to differing book and tax treatments for the timing of the recognition of gains (losses) on certain investment transactions and the timing of the deductibility of certain expenses.

Permanent differences, primarily due to differing treatments of gains (losses) related to foreign currency transactions, basis adjustments for swap transactions, paydown adjustments, nondeductible expenses, tax adjustments on debt securities sold by the Fund and a dividend redesignation, resulted in the following reclassifications among the Fund's components of net assets at September 30, 2017:

ACCUMULATED UNDISTRIBUTED NET INVESTMENT INCOME				ACCUMULATED NET REALIZED LOSS				PAID-IN-CAPITAL
$	141,562			$	55,083			$	(196,645	)

At September 30, 2017, the Fund had no distributable earnings on a tax basis.

At September 30, 2017, the Fund had available for federal income tax purposes unused short-term capital losses of $411,040 that do not have an expiration date. To the extent that capital loss carryforwards are used to offset any future capital gains realized, no capital gains tax liability will be incurred by the Fund for gains realized and not distributed. To the extent that capital gains are offset, such gains will not be distributed to the shareholders. During the year ended September 30, 2017, the Fund utilized capital loss carryforwards for U.S. federal income tax purposes of $2,827,496.

Qualified late year losses are capital losses and specified ordinary losses, including currency losses, incurred after October 31 but within the taxable that, if elected, are deemed to arise on the first day of the Fund's next taxable year. These also include non-specified ordinary losses incurred after

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Notes to Financial Statements n March 29, 2018 (unaudited) continued

December 31 but within the same taxable year. For the year ended September 30, 2017, the Fund deferred to October 1, 2017 for U.S. federal income tax purposes the following losses:

QUALIFIED LATE YEAR ORDINARY LOSSES				POST-OCTOBER CAPITAL LOSSES
$	6,696			$	—

10. Other

At March 29, 2018, the Fund had record owners of 10% or greater. Investment activities of these shareholders could have a material impact on the Fund. The aggregate percentage of such owners was 24.6%.

11. Accounting Pronouncement

In March 2017, FASB issued an Accounting Standard Update, ASU 2017-08, Receivables-Nonrefundable Fees and Other Costs (Subtopic 310-20), Premium Amortization on Purchased Callable Debt Securities (the "ASU") which amends the amortization period for certain purchased callable debt securities held at a premium, shortening such period to the earliest call date. The ASU does not require any accounting change for debt securities held at a discount; the discount continues to be amortized to maturity. The ASU is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. At this time, management is evaluating the implications of these changes on the financial statements.

12. Subsequent Event

The Fund announced that its stockholders, at the Fund's Special Meeting of Stockholders held on April 20, 2018, approved the reorganization (the "Reorganization") of the Fund into the Corporate Bond Portfolio ("MSIFT Corporate Bond"). MSIFT Corporate Bond is a diversified series of Morgan Stanley Institutional Fund Trust, an open-end management investment company advised by the Fund's investment adviser. In connection with the Reorganization, stockholders of the Fund will receive newly issued Class I shares of MSIFT Corporate Bond with a value equal to the aggregate net asset value of their common shares of the Fund on the valuation date, which is expected to be the close of business on or about June 1, 2018.

Morgan Stanley Income Securities Inc.

Financial Highlights

Select ratios and per share data for a share of capital stock outstanding throughout each period:

	FOR THE SIX			FOR THE YEAR ENDED SEPTEMBER 30,
	MONTHS ENDED
	MARCH 29, 2018R			2017			2016⁽¹⁾			2015			2014			2013
	(unaudited)
Selected Per Share Data:
Net asset value, beginning of period	$	19.53		$	19.73		$	19.10		$	19.92		$	18.94		$	19.55
Income (loss) from investment operations:
Net investment income⁽²⁾		0.30			0.62			0.71			0.67			0.64			0.75
Net realized and unrealized gain (loss)		(0.53	)		(0.09	)		1.05			(0.86	)		1.04			(0.68	)
Total income (loss) from investment operations		(0.23	)		0.53			1.76			(0.19	)		1.68			0.07
Less dividends and distributions from:
Net investment income		(0.29	)		(0.73	)		(0.68	)		(0.58	)		(0.70	)		(0.69	)
Net realized gain		(0.00	)⁽³⁾		—			(0.45	)		(0.05	)		—			—
Total dividends and distributions		(0.29	)		(0.73	)		(1.13	)		(0.63	)		(0.70	)		(0.69	)
Anti-dilutive effect of share repurchase program		—			—			—			—			0.00	⁽³⁾		0.01
Net asset value, end of period	$	19.01		$	19.53		$	19.73		$	19.10		$	19.92		$	18.94
Market value, end of period	$	18.83		$	18.30		$	18.92		$	17.38		$	17.85		$	16.63
Total Investment Return:⁽⁴⁾
Market Value		4.49	%⁽⁶⁾		0.73	%		16.04	%		0.89	%		11.76	%		(9.68	)%
Ratios to Average Net Assets:
Total expenses		0.76	%⁽⁷⁾		0.78	%		0.73	%⁽⁵⁾		0.72	%		0.67	%		0.66	%
Net investment income		3.13	%⁽⁷⁾		3.21	%		3.71	%⁽⁵⁾		3.39	%		3.26	%		3.86	%
Supplemental Data:
Net assets, end of period, in thousands	$	170,353		$	175,075		$	176,851		$	171,236		$	178,550		$	170,041
Portfolio turnover rate		18	%⁽⁶⁾		43	%		38	%		44	%		43	%		57	%

R March 29, 2018 represents the last business day of the Fund's semi-annual period.

(1) Reflects prior period custodian out-of-pocket expenses that were reimbursed in September 2016. The amount of the reimbursement was immaterial on a per share basis and did not impact the total return of the Fund.

(2) The per share amounts were computed using an average number of shares outstanding during the period.

(3) Amount is less than $0.005.

(4) Total return is based upon the current market value on the last day of each period reported. Dividends and distributions are assumed to be reinvested at the prices obtained under the Fund's dividend reinvestment plan. Total return does not reflect brokerage commissions.

(5) If the Fund had not received the reimbursement from the custodian, the annualized expense and net investment income ratios would have been as follows:

PERIOD ENDED				EXPENSE RATIO				NET INVESTMENT INCOME RATIO
September 30, 2016					0.76	%			3.68	%

(6) Not annualized.

(7) Annualized.

See Notes to Financial Statements
35

Morgan Stanley Income Securities Inc.

Portfolio Management (unaudited)

The Fund is managed by members of the Taxable Fixed Income team. The team consists of portfolio managers and analysts. Current members of the team jointly and primarily responsible for the day-to-day management of the Fund's portfolio are Joseph Mehlman, Executive Director of the Adviser and Christian G. Roth, Managing Director of the Adviser.

Mr. Mehlman has been associated with the Adviser in an investment management capacity since 2002 and began managing the Fund in November 2008. Mr. Roth has been associated with the Adviser or its investment management affiliates in an investment management capacity since 1991 and began managing the Fund in February 2009.

Morgan Stanley Income Securities Inc.

Investment Policy (unaudited)

Derivatives

The Fund may, but it is not required to, use derivative instruments for a variety of purposes, including hedging, risk management, portfolio management or to earn income. A derivative is a financial instrument whose value is based, in part, on the value of an underlying asset, interest rate, index or financial instrument. Prevailing interest rates and volatility levels, among other things, also affect the value of derivative instruments. A derivative instrument often has risks similar to its underlying asset and may have additional risks, including imperfect correlation between the value of the derivative and the underlying asset, risks of default by the counterparty to certain transactions, magnification of losses incurred due to changes in the market value of the securities, instruments, indices or interest rates to which the derivative instrument relates, risks that the transactions may not be liquid and risks arising from margin requirements. The use of derivatives involves risks that are different from, and possibly greater than, the risks associated with other portfolio investments. Derivatives may involve the use of highly specialized instruments that require investment techniques and risk analyses different from those associated with other portfolio investments. In addition, proposed regulatory changes by the Securities and Exchange Commission ("SEC") relating to a mutual fund's use of derivatives could potentially limit or impact the Fund's ability to invest in derivatives and adversely affect the value or performance of the Fund or its derivative investments. Certain derivative transactions may give rise to a form of leverage. Leverage magnifies the potential for gain and the risk of loss. Leverage associated with derivative transactions may cause the Fund to liquidate portfolio positions when it may not be advantageous to do so to satisfy its obligations or to meet earmarking or segregation requirements, pursuant to applicable SEC rules and regulations, or may cause the Fund to be more volatile than if the Fund had not been leveraged. Although the Adviser seeks to use derivatives to further the Fund's investment objectives, there is no assurance that the use of derivatives will achieve this result.

Following is a description of the derivative instruments and techniques that the Fund may use and their associated risks:

Futures. A futures contract is a standardized, exchange-traded agreement to buy or sell a specific quantity of an underlying asset, reference rate or index at a specific price at a specific future time. The value of a futures contract tends to increase or decrease in tandem with the value of the underlying instrument. Depending on the terms of the particular contract, futures contracts are settled through either physical delivery of the underlying instrument on the settlement date or by payment of a cash settlement amount on the settlement date. A decision as to whether, when and how to use futures contracts involves the exercise of skill and judgment and even a well-conceived futures transaction may be unsuccessful because of market behavior or unexpected events. In addition to the derivatives risks discussed above, the prices of futures contracts can be highly volatile, using futures contracts can lower total return, and the potential loss from futures contracts can exceed the Fund's initial investment in such contracts. No assurance can be given that a liquid market will exist for any particular futures contract at

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Investment Policy (unaudited) continued

any particular time. There is also the risk of loss by the Fund of margin deposits in the event of bankruptcy of a broker with which the Fund has open positions in the futures contract.

Options. If the Fund buys an option, it buys a legal contract giving it the right to buy or sell a specific amount of the underlying instrument or futures contract on the underlying instrument at an agreed-upon price typically in exchange for a premium paid by the Fund. If the Fund sells an option, it sells to another person the right to buy from or sell to the Fund a specific amount of the underlying instrument or foreign currency or futures contract on the underlying instrument or foreign currency at an agreed-upon price typically in exchange for a premium received by the Fund. When options are purchased over-the-counter ("OTC"), the Fund bears the risk that the counterparty that wrote the option will be unable or unwilling to perform its obligations under the option contract. Options may also be illiquid and the Fund may have difficulty closing out its position. A decision as to whether, when and how to use options involves the exercise of skill and judgment and even a well-conceived option transaction may be unsuccessful because of market behavior or unexpected events. The prices of options can be highly volatile and the use of options can lower total returns.

Swaps. The Fund may enter into OTC swap contracts or cleared swap transactions. An OTC swap contract is an agreement between two parties pursuant to which the parties exchange payments at specified dates on the basis of a specified notional amount, with the payments calculated by reference to specified securities, indices, reference rates, currencies or other instruments. Typically swap agreements provide that when the period payment dates for both parties are the same, the payments are made on a net basis (i.e., the two payment streams are netted out, with only the net amount paid by one party to the other). The Fund's obligations or rights under a swap contract entered into on a net basis will generally be equal only to the net amount to be paid or received under the agreement, based on the relative values of the positions held by each party. Cleared swap transactions may help reduce counterparty credit risk. In a cleared swap, the Fund's ultimate counterparty is a clearinghouse rather than a swap dealer, bank or other financial institution. OTC swap agreements are not entered into or traded on exchanges and often there is no central clearing or guaranty function for OTC swaps. These OTC swaps are often subject to credit risk or the risk of default or non-performance by the counterparty. Both OTC and cleared swaps could result in losses if interest rates, foreign currency exchange rates or other factors are not correctly anticipated by the Fund or if the reference index, security or investments do not perform as expected. The Fund enters into credit default, interest rate and other forms of swap agreements to manage exposure to credit and interest rate risks. The Fund's use of swaps may include those based on the credit of an underlying security, commonly referred to as "credit default swaps". The Fund may be either the buyer or the seller in a credit default swap. Where the Fund is the buyer of a credit default swap contract, it would typically be entitled to receive the par (or other agreed-upon) value of a referenced debt obligation from the counterparty to the contract only in the event of a default or similar event of the issuer of the referenced debt obligation. If no default occurs, the Fund would have paid to the counterparty a periodic stream of payments over the term of the contract and received no

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Investment Policy (unaudited) continued

benefit from the contract. When the Fund is the seller of a credit default swap contract, typically it receives the stream of payments but is obligated to pay an amount equal to the par (or other agreed-upon) value of a referenced debt obligation upon the default or similar event by the issuer of the debt obligation. The Dodd-Frank Wall Street Reform and Consumer Protection Act and related regulatory developments require the clearing and exchange-trading of certain standardized swap transactions. Mandatory exchange-trading and clearing is occurring on a phased-in basis.

Foreign Currency Forward Exchange Contracts. In connection with its investments in foreign securities, the Fund also may enter into contracts with banks, brokers or dealers to purchase or sell securities or foreign currencies at a future date. A foreign currency forward exchange contract ("currency contract") is a negotiated agreement between the contracting parties to exchange a specified amount of currency at a specified future time at a specified rate. The rate can be higher or lower than the spot rate between the currencies that are the subject of the contract. The Fund may also invest in non-deliverable foreign currency forward exchange contracts ("NDFs"). NDFs are similar to other foreign currency forward exchange contracts, but do not require or permit physical delivery of currency upon settlement. Instead, settlement is made in cash based on the difference between the contracted exchange rate and the spot foreign exchange rate at settlement. Currency contracts may be used to protect against uncertainty in the level of future foreign currency exchange rates or to gain or modify exposure to a particular currency. In addition, the Fund may use cross currency hedging or proxy hedging with respect to currencies in which the Fund has or expects to have portfolio or currency exposure. Cross currency and proxy hedges involve the sale of one currency against the positive exposure to a different currency and may be used for hedging purposes or to establish an active exposure to the exchange rate between any two currencies. To the extent hedged by the use of currency contracts, the precise matching of the currency contract amounts and the value of the securities involved will not generally be possible because the future value of such securities in foreign currencies will change as a consequence of market movements in the value of those securities between the date on which the contract is entered into and the date it matures. Furthermore, such transactions may reduce or preclude the opportunity for gain if the value of the currency should move in the direction opposite to the position taken. There is additional risk to the extent that currency contracts create exposure to currencies in which the Fund's securities are not denominated. Unanticipated changes in currency prices may result in poorer overall performance for the Fund than if it had not entered into such contracts. The use of currency contracts involves the risk of loss from the insolvency or bankruptcy of the counterparty to the contract or the failure of the counterparty to make payments or otherwise comply with the terms of the contract.

Mortgage Securities

Mortgage securities derive their value from the value of underlying mortgages. Mortgage securities are subject to the risks of price movements in response to changing interest rates and the level of

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Investment Policy (unaudited) continued

prepayments made by borrowers of the underlying mortgages. An unexpectedly high rate of defaults on the mortgages held by a mortgage pool may adversely affect the value of a mortgage-backed security and could result in losses to the Fund. The risk of such defaults is generally higher in the case of mortgage pools that include subprime mortgages. Subprime mortgages refer to loans made to borrowers with weakened credit histories or with a lower capacity to make timely payment on their mortgages.

Collateralized Mortgage Obligations ("CMOs") are debt obligations collateralized by mortgage loans or mortgage pass-through securities (collectively "Mortgage Assets"). Payments of principal and interest on the Mortgage Assets and any reinvestment income are used to make payments on the CMOs. CMOs are issued in multiple classes. Each class has a fixed or floating coupon rate and a stated maturity or final distribution date. The principal and interest on the Mortgage Assets may be allocated among the classes in a number of different ways including "interest only ("IO")" classes and "inverse IO" classes. Certain classes will, as a result of the allocation, have more predictable cash flows than others. As a general matter, the more predictable the cash flow, the lower the yield relative to other Mortgage Assets. The less predictable the cash flow, the higher the yield and the greater the risk. The Fund may invest in any class of CMOs. The general goal in allocating cash flows on Mortgage Assets to the various classes of a CMO is to create certain tranches on which the expected cash flows have a higher degree of predictability than do the underlying Mortgage Assets. As a general matter, the more predictable the cash flow is on a particular CMO tranche, the lower the anticipated yield on that tranche at the time of issue will be relative to the prevailing market yields on the Mortgage Assets. As part of the process of creating more predictable cash flows on certain tranches of a CMO, one or more tranches generally must be created that absorb most of the changes in the cash flows on the underlying Mortgage Assets. The yields on these tranches are generally higher than prevailing market yields on other mortgage-related securities with similar average lives. Principal prepayments on the underlying Mortgage Assets may cause the CMOs to be retired substantially earlier than their stated maturities or final distribution dates.

Because of the uncertainty of the cash flows on these tranches, the market prices and yields of these tranches are more volatile and may increase or decrease in value substantially with changes in interest rates and/or the rates of prepayment. Due to the possibility that prepayments (on home mortgages and other collateral) will alter the cash flow on CMOs, it is not possible to determine in advance the final maturity date or average life. Faster prepayment will shorten the average life and slower prepayments will lengthen it. In addition, if the collateral securing CMOs or any third-party guarantees is insufficient to make payments, the Fund could sustain a loss.

Commercial Mortgage-Backed Securities ("CMBS") are generally multi-class or pass-through securities backed by a mortgage loan or a pool of mortgage loans secured by commercial property, such as industrial and warehouse properties, office buildings, retail space and shopping malls, multi-family properties and cooperative apartments. The commercial mortgage loans that underlie CMBS are generally not amortizing or not fully amortizing. That is, at their maturity date, repayment of their

Morgan Stanley Income Securities Inc.

Investment Policy (unaudited) continued

remaining principal balance or "balloon" is due and is repaid through the attainment of an additional loan or sale of the property. An extension of a final payment on commercial mortgages will increase the average life of the CMBS, generally resulting in a lower yield for discount bonds and a higher yield for premium bonds. CMBS are subject to credit risk and prepayment risk. Although prepayment risk is present, it is of a lesser degree in the CMBS than in the residential mortgage market; commercial real estate property loans often contain provisions which substantially reduce the likelihood that such securities will be prepaid (e.g., significant prepayment penalties on loans and, in some cases, prohibition on principal payments for several years following origination).

Stripped Mortgage-Backed Securities ("SMBSs") are derivative multi-class mortgage securities. SMBSs may be issued by agencies or instrumentalities of the U.S. government, or by private originators. A common type of SMBS will have one class receiving some of the interest and most of the principal from the Mortgage Assets, while the other class receives most of the interest and the remainder of the principal. In the most extreme case, one class will receive all of the interest (the interest-only or "IO" class), while the other class will receive all of the principal (the principal-only or "PO" class). Investments in each class of SMBS are extremely sensitive to changes in interest rates. IOs tend to decrease in value substantially if interest rates decline and prepayment rates become more rapid. POs tend to decrease in value substantially if interest rates increase and the rate of prepayment decreases. If the Fund invests in SMBSs and interest rates move in a manner not anticipated by Fund management, it is possible that the Fund could lose all or substantially all of its investment.

Defensive Investing

The Fund may take temporary "defensive" positions in attempting to respond to adverse market, economic, political or other conditions. When the Fund is in a defensive position, the Fund may invest any amount of its assets in cash, cash equivalents or other fixed-income securities in a defensive posture that may be inconsistent with the Fund's principal investment strategies when the Adviser believes it is advisable to do so.

Although taking a defensive posture is designed to protect the Fund from an anticipated market downturn, it could have the effect of reducing the benefit from any upswing in the market. When the Fund takes a defensive position, it may not achieve its investment objective.

Special Risks Related to Cyber Security

The Fund and its service providers are susceptible to cyber security risks that include, among other things, theft, unauthorized monitoring, release, misuse, loss, destruction or corruption of confidential and highly restricted data; denial of service attacks; unauthorized access to relevant systems; compromises to networks or devices that the Fund and its service providers use to service the Fund's operations; or operational disruption or failures in the physical infrastructure or operating systems that support the

Morgan Stanley Income Securities Inc.

Investment Policy (unaudited) continued

Fund and its service providers. Cyber attacks against or security breakdowns of the Fund or its service providers may adversely impact the Fund and its shareholders, potentially resulting in, among other things, financial losses; the inability of Fund shareholders to transact business and the Fund to process transactions; inability to calculate the Fund's NAV; violations of applicable privacy and other laws; regulatory fines, penalties, reputational damage, reimbursement or other compensation costs; and/or additional compliance costs. The Fund may incur additional costs for cyber security risk management and remediation purposes. In addition, cyber security risks may also impact issuers of securities in which the Fund invests, which may cause the Fund's investment in such issuers to lose value. There can be no assurance that the Fund or its service providers will not suffer losses relating to cyber attacks or other information security breaches in the future.

Foreign and Emerging Market Securities

Investing in the securities of foreign issuers, particularly those located in emerging market or developing countries, entails the risk that news and events unique to a country or region will affect those markets and their issuers. The value of the Fund's shares may vary widely in response to political and economic factors affecting companies in foreign countries. These same events will not necessarily have an effect on the U.S. economy or similar issuers located in the United States. In addition, investments in certain foreign markets that have historically been considered stable may become more volatile and subject to increased risk due to ongoing developments and changing conditions in such markets. Moreover, the growing interconnectivity of global economies and financial markets has increased the probability that adverse developments and conditions in one country or region will affect the stability of economies and financial markets in other countries or regions.

Certain foreign markets may rely heavily on particular industries or foreign capital and are more vulnerable to diplomatic developments, the imposition of economic sanctions against a particular country or countries, organizations, entities and/or individuals, changes in international trading patterns, trade barriers, and other protectionist or retaliatory measures. Economic sanctions could, among other things, effectively restrict or eliminate the Fund's ability to purchase or sell securities or groups of securities for a substantial period of time, and may make the Fund's investments in such securities harder to value. International trade barriers or economic sanctions against foreign countries, organizations, entities and/or individuals, may adversely affect the Fund's foreign holdings or exposures. Investments in foreign markets may also be adversely affected by governmental actions such as the imposition of capital controls, nationalization of companies or industries, expropriation of assets or the imposition of punitive taxes. Governmental actions can have a significant effect on the economic conditions in foreign countries, which also may adversely affect the value and liquidity of the Fund's investments. For example, the governments of certain countries may prohibit or impose substantial restrictions on foreign investing in their capital markets or in certain sectors or industries. In addition, a foreign government may limit or cause delay in the convertibility or repatriation of its currency which would adversely affect the U.S.

Morgan Stanley Income Securities Inc.

Investment Policy (unaudited) continued

dollar value and/or liquidity of investments denominated in that currency. Any of these actions could severely affect security prices, impair the Fund's ability to purchase or sell foreign securities or transfer the Fund's assets back into the United States, or otherwise adversely affect the Fund's operations. Certain foreign investments may become less liquid in response to market developments or adverse investor perceptions, or become illiquid after purchase by the Fund, particularly during periods of market turmoil. Certain foreign investments may become illiquid when, for instance, there are few, if any, interested buyers and sellers or when dealers are unwilling to make a market for certain securities. When the Fund holds illiquid investments, its portfolio may be harder to value.

Pricing of Securities

Certain of the Fund's securities may be valued by an outside pricing service approved by the Board. The pricing service/vendor may utilize a matrix system or other model incorporating attributes such as security quality, maturity and coupon as the evaluation model parameters, and/or research evaluations by its staff, including review of broker-dealer market price quotations in determining what it believes is the fair valuation of the portfolio securities valued by such pricing service. Pricing services value securities assuming orderly transactions of an institutional round lot size, but the Fund may hold or transact in such securities in smaller, odd lot sizes. Odd lots often trade at lower prices than institutional round lots.

Determination of NAV

The Fund determines the NAV per share as of the close of the NYSE (normally 4:00p.m. Eastern time) on each day that the NYSE is open for business. Shares generally will not be priced on days that the NYSE is closed, although shares may be priced on such days if the Securities Industry and Financial Markets Association ("SIFMA") recommends that the bond markets remain open for all or part of the day. On any business day when SIFMA recommends that the bond markets close early, the Fund reserves the right to price its shares at or prior to the SIFMA recommended closing time. If the NYSE is closed due to inclement weather, technology problems or any other reason on a day it would normally be open for business, or the NYSE has an unscheduled early closing on a day it has opened for business, the Fund reserves the right to treat such day as a business day and calculate its NAV as of the normally scheduled close of regular trading on the NYSE for that day, so long as the Adviser believes there generally remains an adequate market to obtain reliable and accurate market quotations. The Fund may elect to price its shares on days when the NYSE is closed but the primary securities markets on which the Fund's securities trade remain open.

Morgan Stanley Income Securities Inc.

Dividend Reinvestment Plan (unaudited)

The dividend reinvestment plan (the Plan) offers you a prompt and simple way to reinvest your dividends and capital gains distributions (Distributions) into additional shares of the Fund. Under the Plan, the money you earn from Distributions will be reinvested automatically in more shares of the Fund, allowing you to potentially increase your investment over time.

Plan benefits

• Add to your account
You may increase your shares in the Fund easily and automatically with the Plan.

• Low transaction costs
Transaction costs are low because the new shares are bought in blocks and the brokerage commission is shared among all participants.

• Convenience
You will receive a detailed account statement from Computershare Trust Company, N.A., (the Agent) which administers the Plan. The statement shows your total Distributions, dates of investment, shares acquired, and price per share, as well as the total number of shares in your reinvestment account. You can also access your account at morganstanley.com/im/cef.

• Safekeeping
The Agent will hold the shares it has acquired for you in safekeeping.

How to participate in the Plan

If you own shares in your own name, you can participate directly in the Plan. If your shares are held in "street name" — in the name of your brokerage firm, bank, or other financial institution — you must instruct that entity to participate on your behalf. If they are unable to participate on your behalf, you may request that they reregister your shares in your own name so that you may enroll in the Plan.

If you choose to participate in the Plan, whenever the Fund declares a distribution, it will be invested in additional shares of the Fund that are purchased in the open market.

How to enroll

To enroll in the Plan, please read the Terms and Conditions in the Plan brochure. You can obtain a copy of the Plan Brochure and enroll in the Plan by visiting morganstanley.com/im/cef, calling toll-free (800) 231-2608 or notifying us in writing at Morgan Stanley Closed-End Funds, Computershare Trust Company, N.A., P.O. Box 30170, College Station, Texas 77842. Please include the Fund name and account number and ensure that all shareholders listed on the account sign the written instructions. Your participation in the Plan will begin with the next Distribution payable after the Agent receives your authorization, as long as they receive it before the "record date," which is generally one week before the

Morgan Stanley Income Securities Inc.

Dividend Reinvestment Plan (unaudited) continued

dividend is paid. If your authorization arrives after such record date, your participation in the Plan will begin with the following Distribution.

Costs of the Plan

There is no direct charge to you for reinvesting dividends and capital gains distributions because the Plan's fees are paid by the Fund. However, when applicable, you will pay your portion of any brokerage commissions incurred when the new shares are purchased on the open market. These brokerage commissions are typically less than the standard brokerage charges for individual transactions, because shares are purchased for all participants in blocks, resulting in lower commissions for each individual participant. Any brokerage commissions or service fees are averaged into the purchase price.

Tax implications

The automatic reinvestment of dividends and capital gains distributions does not relieve you of any income tax that may be due on dividends or capital gains distributions. You will receive tax information annually to help you prepare your federal and state income tax returns.

Morgan Stanley does not offer tax advice. The tax information contained herein is general and is not exhaustive by nature. It was not intended or written to be used, and it cannot be used by any taxpayer, for avoiding penalties that may be imposed on the taxpayer under U.S. federal tax laws, Federal and state tax laws are complex and constantly changing. Shareholders should always consult a legal or tax advisor for Information concerning their individual situation.

How to withdraw from the Plan

To withdraw from the Plan, please visit morganstanley.com/im/cef or call (800) 231-2608 or notify us in writing at the address below.

Morgan Stanley Closed-End Funds
Computershare Trust Company, N.A.
P.O. Box 30170
College Station, Texas 77842

All shareholders listed on the account must sign any written withdrawal instructions. If you withdraw, you have three options with regard to the shares held in your account:

1. If you opt to continue to hold your non-certificated shares, whole shares will be held by the Agent and fractional shares will be sold.

2. If you opt to sell your shares through the Agent, we will sell all full and fractional shares and send the proceeds via check to your address of record after deducting brokerage commissions.

Morgan Stanley Income Securities Inc.

Dividend Reinvestment Plan (unaudited) continued

3. You may sell your shares through your financial advisor through the Direct Registration System ("DRS"). DRS is a service within the securities industry that allows Fund shares to be held in your name in electronic format. You retain full ownership of your shares, without having to hold a stock certificate.

The Fund and Computershare Trust Company, N.A. at any time may amend or terminate the Plan. Participants will receive written notice at least 30 days before the effective date of any amendment. In the case of termination, Participants will receive written notice at least 30 days before the record date for the payment of any dividend or capital gains distribution by the Fund. In the case of amendment or termination necessary or appropriate to comply with applicable law or the rules and policies of the Securities and Exchange Commission or any other regulatory authority, such written notice will not be required.

To obtain a complete copy of the Dividend Reinvestment Plan, please call our Client Relations department at 800-231-2608 or visit morganstanley.com/im/cef.

Morgan Stanley Income Securities Inc.

Privacy Notice (unaudited)

Morgan Stanley Investment Management Inc.
An Important Notice Concerning Our U.S. Privacy Policy

We are required by federal law to provide you with a copy of our privacy policy annually. This policy applies to current and former individual investors in funds managed or sponsored by Morgan Stanley Investment Management Inc. ("MSIM") as well as current and former individual clients of MSIM. This policy is not applicable to partnerships, corporations, trusts or other non-individual clients or investors. Please note that we may amend this policy at any time, and will inform you of any changes as required by law.

We Respect Your Privacy

We appreciate that you have provided us with your personal financial information. We strive to maintain the privacy of such information while we help you achieve your financial objectives. This Notice describes what non-public personal information we collect about you, why we collect it, when we may share it with others and how certain others may use it. It discusses the steps you may take to limit our sharing of certain information about you to affiliated companies in the Morgan Stanley family of companies ("other Morgan Stanley companies"). It also discloses how you may limit use of certain shared information for marketing purposes by other Morgan Stanley branded companies. Throughout this policy, we refer to the non-public information that personally identifies you or your accounts as "personal information.''

1. What Personal Information Do We Collect About You?

We obtain personal information from applications and other forms you submit to us, from your dealings with us, from consumer reporting agencies, from our Web sites and from third parties and other sources.

For example:

• We may collect information such as your name, address, e-mail address, telephone/fax numbers, assets, income and investment objectives through subscription documents, applications and other forms you submit to us.

• We may obtain information about account balances, your use of account(s) and the types of products and services you prefer to receive from us through your dealings and transactions with us and other sources.

• We may obtain information about your creditworthiness and credit history from consumer reporting agencies.

Morgan Stanley Income Securities Inc.

Privacy Notice (unaudited) continued

• We may collect background information from and through third-party vendors to verify representations you have made and to comply with various regulatory requirements.

• If you interact with us through our public and private Web sites, we may collect information that you provide directly through online communications (such as an e-mail address). We may also collect information about your Internet service provider, your domain name, your computer's operating system and Web browser, your use of our Web sites and your product and service preferences, through the use of "cookies." Please consult the Terms of Use of these sites for more details.

2. When Do We Disclose Personal Information We Collect About You?

We may disclose personal information we collect about you to other Morgan Stanley companies and to non-affiliated third parties.

a. Information We Disclose to Other Morgan Stanley Companies. We may disclose personal information to other Morgan Stanley companies for a variety of reasons, including to manage your account(s) effectively, to service and process your transactions, to let you know about products and services offered by us and other Morgan Stanley companies, to manage our business, and as otherwise required or permitted by law. Offers for products and services from other Morgan Stanley companies are developed under conditions designed to safeguard your personal information.

b. Information We Disclose to Non-affiliated Third Parties. We do not disclose personal information that we collect about you to non-affiliated third parties except to those who provide marketing services on our behalf, to financial institutions with whom we have joint marketing agreements, and as otherwise required or permitted by law. For example, we may disclose personal information to non-affiliated third parties for servicing and processing transactions, to offer our own products and services, to protect against fraud, for institutional risk control, to respond to judicial process or to perform services on our behalf. When we share personal information with a non-affiliated third party, they are required to limit their use of personal information to the particular purpose for which it was shared and they are not allowed to share personal information with others except to fulfill that limited purpose or as may be permitted or required by law.

3. How Do We Protect the Security and Confidentiality of Personal Information We Collect About You?

We maintain physical, electronic and procedural security measures to help safeguard the personal information we collect about you. We have internal policies governing the proper handling of client information. Third parties that provide support or marketing services on our behalf may also receive personal information, and we require them to adhere to confidentiality standards with respect to such information.

Morgan Stanley Income Securities Inc.

Privacy Notice (unaudited) continued

4. How Can You Limit the Sharing Of Certain Types Of Personal Information With Other Morgan Stanley Companies?

We offer you choices as to whether we share with other Morgan Stanley companies the personal information that was collected to determine your eligibility for products and services you request ("eligibility information"). Eligibility information does not include your identification information or personal information pertaining to our transactions or experiences with you. Please note that, even if you direct us not to share eligibility information with other Morgan Stanley companies ("opt-out"), we may still share personal information, including eligibility information, with those companies in circumstances excluded from the opt-out under applicable law, such as to process transactions or to service your account.

5. How Can You Limit the Use of Certain Types Of Personal Information By Other Morgan Stanley Companies for Marketing?

By following the opt-out instructions in Section 6 below, you may limit other Morgan Stanley branded companies from marketing their products or services to you based on personal information we disclose to them. This information may include, for example, your income and account history with us. Please note that, even if you choose to limit Other Morgan Stanley Companies from using personal information about you that we may share with them for marketing their products and services to you, Other Morgan Stanley Companies may use your personal information that they obtain from us to market to you in circumstances permitted by law, such as if the Other Morgan Stanley Company has its own relationship with you.

6. How Can You Send Us An Opt-Out Instruction?

If you wish to limit our sharing of eligibility information about you with other Morgan Stanley companies or other Morgan Stanley companies' use of personal information for marketing purposes, as described in this notice, you may do so by:

• Calling us at (800) 231-2608
Monday–Friday between 8a.m. and 6p.m.(EST)

• Writing to us at the following address:
Computershare Trust Company, N.A.
c/o Privacy Coordinator
P.O. Box 30170
College Station, Texas 77842

Your written request should include your name, address, telephone number and account number(s) to which the opt-out applies and whether you are opting out with respect to sharing of eligibility information (Section 4 above), or if information used for Marketing (Section 5 above) or both. Written opt-out

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Privacy Notice (unaudited) continued

requests should not be sent with any other correspondence. In order to process your request, we require that the request be provided by you directly and not through a third party.

Your opt-out preference will remain in effect with respect to this policy (as it may be amended) until you notify us otherwise. If you have a joint account, your direction for us not to share this information with other Morgan Stanley companies and for those other Morgan Stanley companies not to use your personal information for marketing will be applied to all account holders on that account. Please understand that if you limit our sharing or our affiliated companies' use of personal information, you and any joint account holder(s) may not receive information about Morgan Stanley products and services, including products or services that could help you manage your financial resources and achieve your investment objectives.

7. What If An Affiliated Company Becomes a Non-affiliated Third Party?

If, at any time in the future, an affiliated company becomes a non-affiliated third party, further disclosures of personal information made to the former affiliated company will be limited to those described in Section 2(b) above relating to non-affiliated third parties. If you elected under Section 6 to limit disclosures we make to affiliated companies, or use of personal information by affiliated companies, your election will not apply to use by any former affiliated company of your personal information in their possession once it becomes a non-affiliated third party.

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Privacy Notice (unaudited) continued

Special Notice to Residents of Vermont
The following section supplements our policy with respect to our individual clients who have a Vermont address and supersedes anything to the contrary in the above policy with respect to those clients only.

The state of Vermont requires financial institutions to obtain your consent prior to sharing personal information that they collect about you with affiliated companies and non-affiliated third parties other than in certain limited circumstances. Except as permitted by law, we will not share personal information we collect about you with non-affiliated third parties or other Morgan Stanley companies unless you provide us with your written consent to share such information ("opt-in").

If you wish to receive offers for investment products and services offered by or through other Morgan Stanley companies, please notify us in writing at the following address:

Computershare Trust Company, N.A.
c/o Privacy Coordinator
P.O. Box 30170
College Station, Texas 77842

Your authorization should include your name, address, telephone number and account number(s) to which the opt-in applies and should not be sent with any other correspondence. In order to process your authorization, we require that the authorization be provided by you directly and not through a third party.

Special Notice to Residents of California
The following section supplements our policy with respect to our individual clients who have a California address and supersedes anything to the contrary in the above policy with respect to those clients only.

In response to a California law, if your account has a California home address, your personal information will not be disclosed to non-affiliated third parties except as permitted by applicable California law, and we will limit sharing such information with our affiliates to comply with California privacy laws that apply to us.

Item 2. Code of Ethics.

Not applicable for semiannual reports.

Item 3. Audit Committee Financial Expert.

Not applicable for semiannual reports.

Item 4. Principal Accountant Fees and Services

Not applicable for semiannual reports.

Item 5. Audit Committee of Listed Registrants.

Not applicable for semiannual reports.

Item 6.

(a) Refer to Item 1.

(b) Not applicable.

Item 7. Disclosure of Proxy Voting Policies and Procedures for Closed-End Management Investment Companies.

Not applicable for semiannual reports.

Item 8. Portfolio Managers of Closed-End Management Investment Companies

Applicable only to annual reports filed by closed-end funds.

Item 9. Closed-End Fund Repurchases

REGISTRANT PURCHASE OF EQUITY SECURITIES

Period	(a) Total Number of Shares (or Units) Purchased	(b) Average Price Paid per Share (or Unit)	(c) Total Number of Shares (or Units) Purchased as Part of Publicly Announced Plans or Programs	(d) Maximum Number (or Approximate Dollar Value) of Shares (or Units) that May Yet Be Purchased Under the Plans or Programs
October 2017	—	—	N/A	N/A
November 2017	—	—	N/A	N/A
December 2017	—	—	N/A	N/A
January 2018	—	—	N/A	N/A
February 2018	—	—	N/A	N/A
March 2018	—	—	N/A	N/A
Total	—	—	N/A	N/A

Item 10. Submission of Matters to a Vote of Security Holders

Not applicable.

Item 11. Controls and Procedures

(a) The registrant’s principal executive officer and principal financial officer have concluded that the registrant’s disclosure controls and procedures are sufficient to ensure that information required to be disclosed by the registrant in this Form N-CSR was recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission’s rules and forms, based upon such officers’ evaluation of these controls and procedures as of a date within 90 days of the filing date of the report.

(b) There were no changes in the registrant’s internal control over financial reporting that occurred during the second fiscal quarter of the period covered by this report that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting.

Item 12. Exhibits

(a) Code of Ethics — Not applicable for semiannual reports.

(b) A separate certification for each principal executive officer and principal financial officer of the registrant are attached hereto as part of EX-99.CERT.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Morgan Stanley Income Securities Inc.

/s/ John H. Gernon
John H. Gernon
Principal Executive Officer
May 17, 2018

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

/s/ John H. Gernon
John H. Gernon
Principal Executive Officer
May 17, 2018

/s/ Francis Smith
Francis Smith
Principal Financial Officer
May 17, 2018