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Contract OI history

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Nov 20, 2026 EXPIRATION

BMO $180.00 Call

BMO261120C00180000

Latest saved OI315Oct 21, 2026
Last change+4vs previous saved observation
Saved market days11Oct 01, 2026 onwards
Daily open interest Hover a point for its date and OI
BMO $180.00 call open interest history 11 saved observations from 2026-10-01 to 2026-10-21. Exact values and changes are listed in the table below. 3151570 2026-10-01: 295 OI2026-10-02: 295 OI2026-10-05: 295 OI2026-10-06: 295 OI2026-10-07: 313 OI2026-10-08: 313 OI2026-10-09: 311 OI2026-10-13: 311 OI2026-10-14: 311 OI2026-10-16: 311 OI2026-10-21: 315 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, 2026Viewing315+4
Oct 16, 20263110
Oct 14, 20263110
Oct 13, 20263110
Oct 09, 2026311-2
Oct 08, 20263130
Oct 07, 2026313+18
Oct 06, 20262950
Oct 05, 20262950
Oct 02, 20262950
Oct 01, 2026295No prior observation