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Contract OI history

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Nov 20, 2026 EXPIRATION

MA $525.00 Put

MA261120P00525000

Latest saved OI401Oct 23, 2026
Last change+4vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MA $525.00 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. 4062030 2026-10-02: 326 OI2026-10-05: 328 OI2026-10-06: 332 OI2026-10-07: 329 OI2026-10-08: 329 OI2026-10-09: 406 OI2026-10-13: 401 OI2026-10-14: 401 OI2026-10-15: 400 OI2026-10-16: 398 OI2026-10-21: 397 OI2026-10-23: 401 OI Oct 02, 2026Oct 23, 2026

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

MA contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing401+4
Oct 21, 2026397-1
Oct 16, 2026398-2
Oct 15, 2026400-1
Oct 14, 20264010
Oct 13, 2026401-5
Oct 09, 2026406+77
Oct 08, 20263290
Oct 07, 2026329-3
Oct 06, 2026332+4
Oct 05, 2026328+2
Oct 02, 2026326No prior observation