Filed Pursuant to Rule 433

Registration Statement No. 333-216286

LIRNs®  Linked to an International Equity Index Basket

This graph reflects the hypothetical return on the notes, based on the mid-point of the range(s) set forth in the table to the left. This graph has been prepared for purposes of illustration only.

Issuer

Canadian Imperial Bank of Commerce (“CIBC”)

Principal Amount

$10.00 per unit

Term

Approximately two years

Market Measure

An international equity index basket comprised of the EURO STOXX 50® Index (Bloomberg symbol: “SX5E”), the FTSE® 100 Index (Bloomberg symbol: “UKX”), the Nikkei Stock Average Index (Bloomberg symbol: “NKY”), the Swiss Market Index (Bloomberg symbol: “SMI”), the S&P®/ASX 200 Index (Bloomberg symbol: “AS51”) and the Hang Seng® Index (Bloomberg symbol: “HSI”) (each, a “Basket Component”). The EURO STOXX 50® Index will be given an initial weight of 40%, each of the FTSE® 100 Index and the Nikkei Stock Average Index will be given an initial weight of 20%, each of the Swiss Market Index and the S&P®/ASX 200 Index will be given an initial weight of 7.5% and the Hang Seng® Index will be given an initial weight of 5%

Payout Profile at Maturity

·     [210% to 230%] upside exposure to increases in the Market Measure

·     1-to-1 downside exposure to decreases in the Market Measure, with up to 100% of your principal at risk

Participation Rate

[210% to 230%], to be determined on the pricing date.

Threshold Value

100% of the Starting Value of the Market Measure

Investment Considerations

This investment is designed for investors who anticipate that the Market Measure will increase moderately over the term of the notes, and are willing to take full downside risk and forgo interim interest payments.

Preliminary Offering Documents

https://www.sec.gov/Archives/edgar/data/1045520/000110465918042546/a18-14738_18fwp.htm

Exchange Listing

No

You should read the relevant Preliminary Offering Documents before you invest.

Click on the Preliminary Offering Documents hyperlink above or call your Financial Advisor for a hard copy.

Risk Factors

Please see the Preliminary Offering Documents for a description of certain risks related to this investment, including, but not limited to, the following:

·     Depending on the performance of the Market Measure as measured shortly before the maturity date, your investment may result in a loss; there is no guaranteed return of principal.

·     Payments on the notes, including repayment of principal, are subject to the credit risk of CIBC, and actual or perceived changes in the creditworthiness of CIBC are expected to affect the value of the notes. If CIBC becomes insolvent or is unable to pay its obligations, you may lose your entire investment.

·     Changes in the value of one of the Basket Components may be offset by changes in the value of the other Basket Components.

·     The initial estimated value of the notes on the pricing date will be less than their public offering price.

·     If you attempt to sell the notes prior to maturity, their market value may be lower than both the public offering price and the initial estimated value of the notes on the pricing date.

·     You will have no rights of a holder of the securities included in the Basket Components, and you will not be entitled to receive securities or dividends or other distributions by the issuers of those securities.

·     Your return on the notes may be affected by factors affecting the international securities markets, specifically markets in the countries represented by the Basket Components. In addition, you will not obtain the benefit of any increase in the value of the currencies in which the securities in the Basket Components trade against the U.S. dollar which you would have received if you had owned the securities in the Basket Components during the term of your notes, although the value of the Basket may be adversely affected by general exchange rate movements in the market.