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Contract OI history

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Jan 15, 2027 EXPIRATION

BMO $145.00 Put

BMO270115P00145000

Latest saved OI844Oct 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 $145.00 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. 8444220 2026-10-01: 844 OI2026-10-02: 844 OI2026-10-05: 844 OI2026-10-06: 844 OI2026-10-07: 844 OI2026-10-08: 844 OI2026-10-09: 844 OI2026-10-13: 844 OI2026-10-14: 844 OI2026-10-16: 844 OI2026-10-21: 844 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, 2026Viewing8440
Oct 16, 20268440
Oct 14, 20268440
Oct 13, 20268440
Oct 09, 20268440
Oct 08, 20268440
Oct 07, 20268440
Oct 06, 20268440
Oct 05, 20268440
Oct 02, 20268440
Oct 01, 2026844No prior observation