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Contract OI history

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Nov 20, 2026 EXPIRATION

BMO $170.00 Call

BMO261120C00170000

Latest saved OI293Oct 21, 2026
Last change+55vs previous saved observation
Saved market days11Oct 01, 2026 onwards
Daily open interest Hover a point for its date and OI
BMO $170.00 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. 2931460 2026-10-01: 105 OI2026-10-02: 245 OI2026-10-05: 245 OI2026-10-06: 245 OI2026-10-07: 245 OI2026-10-08: 238 OI2026-10-09: 238 OI2026-10-13: 238 OI2026-10-14: 239 OI2026-10-16: 238 OI2026-10-21: 293 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, 2026Viewing293+55
Oct 16, 2026238-1
Oct 14, 2026239+1
Oct 13, 20262380
Oct 09, 20262380
Oct 08, 2026238-7
Oct 07, 20262450
Oct 06, 20262450
Oct 05, 20262450
Oct 02, 2026245+140
Oct 01, 2026105No prior observation