OITracker Cboe delayed data

Contract OI history

Back to BMO

Nov 20, 2026 EXPIRATION

BMO $180.00 Put

BMO261120P00180000

Latest saved OI250Oct 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 $180.00 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. 2501250 2026-10-01: 250 OI2026-10-02: 250 OI2026-10-05: 250 OI2026-10-06: 250 OI2026-10-07: 250 OI2026-10-08: 250 OI2026-10-09: 250 OI2026-10-13: 250 OI2026-10-14: 250 OI2026-10-16: 250 OI2026-10-21: 250 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, 2026Viewing2500
Oct 16, 20262500
Oct 14, 20262500
Oct 13, 20262500
Oct 09, 20262500
Oct 08, 20262500
Oct 07, 20262500
Oct 06, 20262500
Oct 05, 20262500
Oct 02, 20262500
Oct 01, 2026250No prior observation