Investor Presentation February 2024

Leading track record in risk management • • . Long track record of outperforming peers on credit, with over 30-year historical average loss rates well below peer banks Prudent underwriting, consistent approach, unparalleled expertise and industry knowledge, effectiveness of work-out process. Deep expertise across Risk and business teams Credit allowances appropriately reflect diversification and underlying strength of portfolios 1.80% 1.60% 1.40% 1.20% 1.00% 0.80% 0.60% 0.40% 0.20% 0.00% PCL on Impaired Loans as a % of Avg. Net Loans & Acceptances 0.49% Cdn Peer Historical Avg. (1990-2023) 0.36% BMO Historical Avg. (1990-2023) 0.35% Cdn. Peer Avg. 0.29% BMO '90 '91 '92 '93 '94 '95 '96 '97 '98 '99 '00 '02 '03 '04 '05 '06 '07 '08 '09 '10 '11 '12 '13 '14 '15 '16 '17 '18 '19 '20 '21 '22 '23 '24 BMO Cdn Peers Avg. BMO Historical Avg. (1990-2023) Q1 Cdn Peers Historical Avg. (1990-2023) 1 Provision for credit losses on impaired loans over average net loan and acceptances, annualized and expressed in basis points; Peers: BNS, CIBC, NA, RBC, TD; information for peer banks has been sourced from their respective Q1'24 quarterly disclosures BMOM Investor Presentation ⚫ February 2024 14

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