OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

MP $40.00 Put

MP280121P00040000

Latest saved OI591Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MP $40.00 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. 5922960 2026-10-02: 573 OI2026-10-05: 573 OI2026-10-06: 573 OI2026-10-07: 573 OI2026-10-08: 573 OI2026-10-09: 574 OI2026-10-13: 581 OI2026-10-14: 581 OI2026-10-15: 591 OI2026-10-16: 592 OI2026-10-21: 591 OI2026-10-23: 591 OI Oct 02, 2026Oct 23, 2026

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

MP contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing5910
Oct 21, 2026591-1
Oct 16, 2026592+1
Oct 15, 2026591+10
Oct 14, 20265810
Oct 13, 2026581+7
Oct 09, 2026574+1
Oct 08, 20265730
Oct 07, 20265730
Oct 06, 20265730
Oct 05, 20265730
Oct 02, 2026573No prior observation