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Contract OI history

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Dec 18, 2026 EXPIRATION

BMO $160.00 Put

BMO261218P00160000

Latest saved OI21Oct 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 $160.00 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. 34170 2026-10-01: 28 OI2026-10-02: 30 OI2026-10-05: 34 OI2026-10-06: 34 OI2026-10-07: 31 OI2026-10-08: 31 OI2026-10-09: 31 OI2026-10-13: 21 OI2026-10-14: 21 OI2026-10-16: 21 OI2026-10-21: 21 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, 2026Viewing210
Oct 16, 2026210
Oct 14, 2026210
Oct 13, 202621-10
Oct 09, 2026310
Oct 08, 2026310
Oct 07, 202631-3
Oct 06, 2026340
Oct 05, 202634+4
Oct 02, 202630+2
Oct 01, 202628No prior observation