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Contract OI history

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Jan 15, 2027 EXPIRATION

BMO $165.00 Put

BMO270115P00165000

Latest saved OI89Oct 21, 2026
Last change0vs previous saved observation
Saved market days11Oct 01, 2026 onwards
Daily open interest Hover a point for its date and OI
BMO $165.00 put open interest history 11 saved observations from 2026-10-01 to 2026-10-21. Exact values and changes are listed in the table below. 113560 2026-10-01: 113 OI2026-10-02: 113 OI2026-10-05: 113 OI2026-10-06: 113 OI2026-10-07: 88 OI2026-10-08: 88 OI2026-10-09: 88 OI2026-10-13: 89 OI2026-10-14: 89 OI2026-10-16: 89 OI2026-10-21: 89 OI Oct 01, 2026Oct 21, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

BMO contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 21, 2026Viewing890
Oct 16, 2026890
Oct 14, 2026890
Oct 13, 202689+1
Oct 09, 2026880
Oct 08, 2026880
Oct 07, 202688-25
Oct 06, 20261130
Oct 05, 20261130
Oct 02, 20261130
Oct 01, 2026113No prior observation