First Quarter, 2024 Earnings Report

Endnotes First quarter 2024 Slide 3 CIBC Overview 1. See note 1 on slide 56. 2. 3. 4. 5. Adjusted results are non-GAAP measures. See slide 55 for further details. Pre-provision, pre-tax earnings (PPPT) is revenue net of non-interest expenses and is a non-GAAP measure. See slide 55 for further details. For additional information on the composition, see the "Glossary" section on pages 41-47 in the Q1/24 Report to Shareholders, available on SEDAR+ at www.sedarplus.com. See note 2 on slide 56. 6. See note 3 on slide 56. 7. 8. For additional information on the composition, see the "Glossary" section on pages 41-47 in the Q1/24 Report to Shareholders, available on SEDAR+ at www.sedarplus.com. See note 13 on slide 57. 9. 10. Our capital ratios are calculated pursuant to OSFI's Capital Adequacy Requirements (CAR) Guideline, which is based on BCBS standards. For additional information, see the "Capital management" section in the Q1/24 Report to Shareholders, available on SEDAR+ at www.sedarplus.com. Includes net client acquisition from Personal and Business Banking and Simplii Financial over the last twelve months (LTM) - Feb/23 to Jan/24. Slide 4 Our Progress 1. 2. 3. 4. 5. 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. Includes net client acquisition from Simplii Financial over the last twelve months (LTM) - Feb/23 to Jan/24. Digital Adoption (Penetration) Rate represents the percentage share of Digital Registered Customers who have been engaged on CIBC Online Banking and/or CIBC Mobile Banking at least once in the last 90 calendar days out of all Canadian Personal Banking customers engaged across any channel. Represents the percentage of Canadian Commercial Banking clients, at the household level, that also have a relationship with Canadian Private Wealth Management. Expense efficiencies represent incremental direct operating expense (DOE) savings from cost saving initiatives implemented over the last twelve months. Slide 7 - Financial Results Overview 1. Adjusted results are non-GAAP measures. See slide 55 for further details. 2. See note 4 on slide 56. 3. Pre-provision, pre-tax earnings (PPPT) is revenue net of non-interest expenses and is a non-GAAP measure. See slide 55 for further details. 4. See notes 9 and 10 on slide 56. 5. 6. OSFI requirement of 11.5% includes Pillar 1 minimum and Domestic Stability Buffer, and includes the 50 bps increase to the Domestic Stability Buffer effective Nov/23. LCR is calculated pursuant to OSFI's Liquidity Adequacy Requirements (LAR) Guideline, which is based on BCBS standards. For additional information, see the "Liquidity risk" section in the Q1/24 Report to Shareholders available on SEDAR+ at www.sedarplus.com. Slide 8 Financial Results Overview Adjusted results are non-GAAP measures. See slide 55 for further details. For additional information on the composition, see the "Glossary" section on pages 41-47 in the Q1/24 Report to Shareholders, available on SEDAR+ at www.sedarplus.com. 1. 2. See note 11 on slide 56. 3. 4. 5. See note 12 on slide 57. Pre-provision, pre-tax earnings is revenue net of non-interest expenses and is a non-GAAP measure. See slide 55 for further details. Slide 9 Net Interest Income (NII) Certain additional disclosures for net interest margin on average interest-earning assets (NIM) have been incorporated by reference and can be found on pages 41-47 in the Q1/24 Report to Shareholders, available on SEDAR+ at www.sedarplus.com. See note 11 on slide 56. 1. 2. 3. See note 3 on slide 56. 4. 5. 6. Includes the results of Canadian Personal and Business Banking and Canadian Commercial Banking, and Simplii Financial and CIBC Investor's Edge, in Capital Markets. The USD 5YR Swap Rate and Fed Funds Rate move in sync with the CAD 5YR Swap Rate and BoC Overnight Rate, therefore, depict a similar rate curve. Deposit and loan portfolio include the mix shift between products, and balance sheet mix includes the balance change between asset and liability balances. CIBC First Quarter, 2024 49 49

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