First Quarter, 2024 Earnings Report

Endnotes First quarter 2024 Slide 10 - Balance Sheet 1. 2. 3. 4. 5. 6. Average balances are calculated as weighted average of daily closing balances. Average interest-earning assets include interest-bearing deposits with banks, interest-bearing demand deposits with Bank of Canada, securities, cash collateral on securities borrowed, securities purchased under resale agreements, loans net of allowances for credit losses, and certain sublease-related assets. The yield for loans and acceptances is calculated as interest income on loans as a percentage of average loans and acceptances, net of allowance for credit losses. The yield on securities is calculated as interest income on securities as a percentage of average securities. Total yield on average interest-earning assets is calculated as interest income on assets as a percentage of average interest-earning assets. These metrics do not have a standardized meaning and may not be comparable to similar measures disclosed by other financial institutions. Other includes balances related to cash and deposits with banks, reverse repos, and other. The yield for Personal-Notice/Demand deposits is calculated as interest expense on Personal-Notice/Demand deposits as a percentage of average Personal-Notice/Demand deposits. The yield for Corporate & Commercial-Notice/Demand deposits is calculated as interest expense on Corporate & Commercial-Notice/Demand deposits as a percentage of average Corporate & Commercial-Notice/Demand deposits. The yield for Term-Client deposits is calculated as interest expense on Term-Client deposits as a percentage of average Term-Client deposits. Term-Client deposits are term deposits less wholesale funding. Total cost on average interest-earning assets is calculated as interest expense on liabilities as a percentage of average interest-earning assets. These metrics do not have a standardized meaning and may not be comparable to similar measures disclosed by other financial institutions. Other includes wholesale funding, sub-debt, repos and other liabilities. Deposit base represents client deposits, excluding wholesale funding. Reflects spot balances as of the respective period ends. Slide 11 Non-Interest Income Market-related fees include underwriting and advisory, investment management and custodial, and mutual fund fees, commissions on securities transactions, gains/losses from financial instruments measured at FVTPL, debt securities measured at FVOCI, and the amount of foreign-exchange other than trading income (loss) that is market-driven. Transactional fees include deposit and payment, credit, and card fees, and the portion of foreign exchange other than trading that is transactional in nature. 1. See note 11 on slide 56. 2. 3. 4. 5. 6. Other primarily includes insurance fees, income from equity-accounted associates and joint ventures, and other. Charts reflect the allocation of foreign-exchange other than trading income (loss) between market-driven and transactional revenues. Adjusted results are non-GAAP measures. See slide 55 for further details. Reported non-interest income has been adjusted to remove the $34MM pre-tax impact of the commodity tax charge related to the retroactive impact of the 2023 Canadian Federal budget. Prior period information has been restated to reflect the adoption of IFRS 17. See "External reporting changes" in the Q1/24 Report to Shareholders for additional details. Slide 12 Non-Interest Expenses 1. 2. 3. 4. Adjusted results are non-GAAP measures. See slide 55 for further details. The 3-year compound annual growth rate (CAGR) is calculated over a twelve-quarter period from each quarter disclosed (i.e. for Q1/24, from the periods of Q1/21 to Q1/24). Efficiencies include incremental direct operating expense (DOE) savings from cost saving initiatives implemented relative to the prior year. Investments include incremental costs associated with front-line hires related to growth initiatives, investments in enterprise initiatives, investments in infrastructure in the U.S., and other growth initiatives. Slide 13 Capital & Liquidity 1. 2. 3. Average balances are calculated as a weighted average of daily closing balances. RWA and our capital balances and ratios are calculated pursuant to OSFI's CAR Guideline, the leverage ratio is calculated pursuant to OSFI's Leverage Requirements Guideline, LCR, HQLA and NSFR are calculated pursuant to OSFI's LAR Guideline, all of which are based on BCBS standards. For additional information, see the "Capital management" and "Liquidity risk" sections in Q1/24 Report to Shareholders available on SEDAR+ at www.sedarplus.com. Relates to regulatory changes implemented on an industry-wide basis and any capital methodology changes implemented within CIBC for our portfolios. Methodology changes in Q1/24 included our application of IRB approach to the majority of our credit portfolios within CIBC Bank USA which reduced credit risk RWA, the regulatory changes related to mortgages in negative amortization which increased credit risk RWA, and the implementation of Basel III reforms related to market risk and CVA. Slide 14 - Canadian Banking: Personal & Business Banking Adjusted results are non-GAAP measures. See slide 55 for further details. Pre-provision, pre-tax earnings is revenue net of non-interest expenses and is a non-GAAP measure. See slide 55 for further details. 1. 2. 3. Loan amounts are stated before any related allowance. 4. Average balances are calculated as a weighted average of daily closing balances. 5. Includes net client acquisition from Personal and Business Banking over the last twelve months (LTM) - Feb/23 to Jan/24. 6. 7. Money-in balances include investments, deposits and GICs from both Personal and Business clients in CIBC's Imperial Service offering. We believe that money-in balances provide the reader with a better understanding of how management assesses the size and quality of our Imperial Service client relationships. Reflects financial transactions only. CIBC First Quarter, 2024 50 50

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