BMO Bank

What sets BMO Bank apart

• Few banks of over $100 bn report a higher efficiency ratio than BMO Bank, at 84.38% in Q2 2026 against a group median of 54.78%.
• BMO Bank has one of the highest tier 1 leverage ratio readings among banks of over $100 bn: 11.29% at Q2 2026, against a median of 9.44% across 32 banks.
• Since Q1 2016, BMO Bank has taken over one institution; the latest was Bank of the West on 2 February 2023.

How large is BMO Bank?

The balance sheet of BMO Bank at Q2 2026: assets $255.0 bn, deposits $194.1 bn, net loans $139.4 bn (loans equal to 71.81% of deposits). Securities make up 25.4% of total assets at BMO Bank. Since Q1 2016, when BMO Bank held $104.4 bn, its assets grew 144.2%. In the year to Q2 2026, deposits at BMO Bank fell 2.6% while its total assets rose 0.5%. At Q2 2026, BMO Bank employed 16,526 full-time equivalent staff across 988 offices, about $15.4 mn of assets per employee and $196.5 mn of deposits per office.

How much funding at BMO Bank is uninsured?

At BMO Bank, uninsured deposits (above the FDIC limit) made up 52.71% of domestic deposits at Q2 2026 (+2.35 pp on a year earlier); BMO Bank ranks 65th of 500 on this measure. In dollars, BMO Bank estimated $102.3 bn of uninsured deposits.

Key facts, Q2 2026

US rank of BMO Bank: 1 = highest unless marked 1 = lowest.

The CET1 ratio of BMO Bank stood at 14.97% in Q2 2026, +0.76 pp year on year. Low and high at BMO Bank since Q1 2016: 11.06% (Q1 2023) to 14.99% (Q1 2026). Equity capital of BMO Bank at Q2 2026: $36.4 bn, or 14.3% of total assets. BMO Bank also reported a total capital ratio of 16.24% for Q2 2026, and a tier 1 leverage ratio of 11.29%.

On held-to-maturity securities, BMO Bank carried an unrealized loss of $407.9 mn at Q2 2026, equal to 1.1% of equity capital. The loss widened by $176.4 mn over the year. The available-for-sale portfolio of BMO Bank showed an unrealized loss of $1.9 bn at Q2 2026; the loss narrowed by $1.9 bn over the year.

For the year to Q2 2026, BMO Bank earned a return on equity of 0.99%; return on assets: 0.15%. Net interest margin at BMO Bank: 3.28%, +0.14 pp in a year. BMO Bank net income: $184.4 mn, down 83.2% year on year. The efficiency ratio of BMO Bank was 84.38%: about 84 cents cost per revenue dollar, against 63 cents at the median peer.

At Q2 2026, noncurrent loans were 0.92% of total loans at BMO Bank; net charge-offs: 0.20% of average loans. Gross loans and leases at BMO Bank: $141.6 bn, down 0.5% in a year.

The peer group of BMO Bank is the 6 banks nearest to it by total assets at Q2 2026: 3 larger and 3 smaller. Of the peers, 4 share the charter type of BMO Bank (national bank), 6 sit in the same size group (over $100 bn) and 0 have head offices in Illinois. Against them, BMO Bank shows CET1 ratio 14.97% against a peer median of 14.29%, return on equity 0.99% against a peer median of 9.88% and uninsured deposit share 52.71% against a peer median of 34.87%.

The FDIC history of BMO Bank, oldest first; figures before and after each event are not like for like.

1. 2 February 2023. Absorbed Bank of the West (FDIC certificate 3514).

Large one-quarter moves at BMO Bank

• Total assets at BMO Bank changed by +50.0% in the quarter to 2023-03-31: Merger -Without Assistance; Participated in Absorbtion/Consolidation/Merger: acquired from Bank of the West.