Investor Presentaiton

Proven strength in Commercial Banking with advantaged market share A relationship-based commercial bank; top 10 commercial lender¹ in North America In Canada: Top-tier commercial banking business, #2 market share for business loans up to $25 million² In the U.S.: Large, diversified national business, supported by industry knowledge, best-in-class customer experience, and top-tier share in flagship markets; #12 in U.S. commercial lending³ Sole or lead position on ~90% of relationships Diversified growth, consistent risk appetite and underwriting Quality and reputation of the business; deep industry expertise In Canada: new sectors and capacity creation through technology In the U.S.: focused expansion of national specialty lending sectors; strength in traditional footprint Commercial portfolio ~83% secured Commercial Banking Revenue as % of Total Bank Revenue - LTM U.S. Commercial Banking 20% Canadian Commercial Banking 17% Other 63% 1 Based on internal analysis 2 Canadian Bankers Association; loan market share $0-$25MM, as at March 2021 3 Based upon publicly available U.S. regulatory filings (FR Y-9Cs and FFIEC 002s) and internal analysis BMO Financial Group Investor Presentation • October 2021 13

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