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Contract OI history

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Dec 15, 2028 EXPIRATION

IBM $400.00 Put

IBM281215P00400000

Latest saved OI372Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
IBM $400.00 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. 3721860 2026-10-02: 341 OI2026-10-05: 341 OI2026-10-06: 371 OI2026-10-07: 371 OI2026-10-08: 372 OI2026-10-09: 372 OI2026-10-13: 372 OI2026-10-14: 372 OI2026-10-15: 372 OI2026-10-16: 372 OI2026-10-21: 372 OI2026-10-23: 372 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, 2026Viewing3720
Oct 21, 20263720
Oct 16, 20263720
Oct 15, 20263720
Oct 14, 20263720
Oct 13, 20263720
Oct 09, 20263720
Oct 08, 2026372+1
Oct 07, 20263710
Oct 06, 2026371+30
Oct 05, 20263410
Oct 02, 2026341No prior observation