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Contract OI history

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Dec 18, 2026 EXPIRATION

BMO $175.00 Put

BMO261218P00175000

Latest saved OI751Oct 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 $175.00 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. 7513750 2026-10-01: 701 OI2026-10-02: 701 OI2026-10-05: 701 OI2026-10-06: 701 OI2026-10-07: 751 OI2026-10-08: 751 OI2026-10-09: 751 OI2026-10-13: 751 OI2026-10-14: 751 OI2026-10-16: 751 OI2026-10-21: 751 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, 2026Viewing7510
Oct 16, 20267510
Oct 14, 20267510
Oct 13, 20267510
Oct 09, 20267510
Oct 08, 20267510
Oct 07, 2026751+50
Oct 06, 20267010
Oct 05, 20267010
Oct 02, 20267010
Oct 01, 2026701No prior observation