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Contract OI history

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Oct 23, 2026 EXPIRATION

MA $525.00 Put

MA261023P00525000

Latest saved OI343Oct 23, 2026
Last change+1vs 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. 3681840 2026-10-02: 173 OI2026-10-05: 176 OI2026-10-06: 177 OI2026-10-07: 368 OI2026-10-08: 368 OI2026-10-09: 344 OI2026-10-13: 343 OI2026-10-14: 343 OI2026-10-15: 343 OI2026-10-16: 343 OI2026-10-21: 342 OI2026-10-23: 343 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, 2026Viewing343+1
Oct 21, 2026342-1
Oct 16, 20263430
Oct 15, 20263430
Oct 14, 20263430
Oct 13, 2026343-1
Oct 09, 2026344-24
Oct 08, 20263680
Oct 07, 2026368+191
Oct 06, 2026177+1
Oct 05, 2026176+3
Oct 02, 2026173No prior observation