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Contract OI history

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Nov 20, 2026 EXPIRATION

IBM $280.00 Put

IBM261120P00280000

Latest saved OI254Oct 23, 2026
Last change-110vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
IBM $280.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 3691840 2026-10-02: 364 OI2026-10-05: 364 OI2026-10-06: 368 OI2026-10-07: 368 OI2026-10-08: 368 OI2026-10-09: 369 OI2026-10-13: 364 OI2026-10-14: 364 OI2026-10-15: 364 OI2026-10-16: 364 OI2026-10-21: 364 OI2026-10-23: 254 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

IBM contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing254-110
Oct 21, 20263640
Oct 16, 20263640
Oct 15, 20263640
Oct 14, 20263640
Oct 13, 2026364-5
Oct 09, 2026369+1
Oct 08, 20263680
Oct 07, 20263680
Oct 06, 2026368+4
Oct 05, 20263640
Oct 02, 2026364No prior observation