WhichIndex

Which indexes is Bank of Montreal in?

Bank of Montreal is in 2 of the 57 indexes we track. Its largest weight is 3.20% in the S&P/TSX Composite, where it ranks #4 of 216.

Tickers
BMO (Toronto Stock Exchange)
BMO (NYSE)
Country
Canada
Sector
Financials
Size
Large cap (market cap $10–200 billion; exact figure in the ranking)
Data as of
16 Oct 2026

Member of 2 indexes

Bank of Montreal's index memberships
IndexWeight %RankIndex size
S&P/TSX Composite3.204216
NYSE Composite0.24 (est.)981865

Source: each index's own source, listed on its page. How we source this. Weights are estimates where marked. This page is refreshed when a membership changes or a weight moves by more than 10%; each index page has the daily figures.

Bank of Montreal across every index we track

Lit tiles are the indexes Bank of Montreal belongs to; the shade is its weight there.

Fewermore

Neighbours by weight

The members ranked just above and just below Bank of Montreal in each index
IndexRanked aboveRanked below
S&P/TSX CompositeToronto-Dominion Bank (5.43%)Bank of Nova Scotia (3.06%)
NYSE CompositeSnowflake Inc. (0.25%)Cloudflare, Inc. (0.24%)