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BM

Bank of Montreal (BMO) short interest & options flow

TSX

BMO enters the post-earnings stretch with shorts nearly gone, borrow costs at rock bottom, and the stock nudging a 52-week high — the question now is whether the valuation re-rating has further to run. The positioning picture is as clean as it gets for a major bank. Short interest has collapsed 30% over the past month to just 0.88% of the free float, the lowest level in at least 90…

Latest pulse1 May 2026

BMO cost-to-borrow spikes to 3.54%, up 170% in one week—highest volatility since March amid tightening short availability.

241.70-2.39% 1d-1.86% 1w+3.00% 1mClose: 5 Nov 2026
Short interest % of float
Low
Live SI on ORTEX →
Cost to borrow
Low and dropping
Live CTB on ORTEX →
Availability
High and rising
Live availability on ORTEX →
Market cap
$120.33B
Next earnings
2 Dec 2026
See the full picture on ORTEX →Live short interest, options flow, signals, 13F filings, and more.

Key data as of 6 Nov 2026

ORTEX chart of Bank of Montreal (BMO) share price and short interest (% of free float), six months to November 5, 2026

Latest signals on BMO

  • Cost to Borrow

    BMO cost-to-borrow spikes to 3.54%, up 170% in one week—highest volatility since March amid tightening short availability.

BMO news and analysis

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