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Contract OI history

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Dec 18, 2026 EXPIRATION

MA $520.00 Put

MA261218P00520000

Latest saved OI334Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MA $520.00 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. 3421710 2026-10-02: 339 OI2026-10-05: 341 OI2026-10-06: 340 OI2026-10-07: 342 OI2026-10-08: 342 OI2026-10-09: 338 OI2026-10-13: 337 OI2026-10-14: 337 OI2026-10-15: 337 OI2026-10-16: 337 OI2026-10-21: 334 OI2026-10-23: 334 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, 2026Viewing3340
Oct 21, 2026334-3
Oct 16, 20263370
Oct 15, 20263370
Oct 14, 20263370
Oct 13, 2026337-1
Oct 09, 2026338-4
Oct 08, 20263420
Oct 07, 2026342+2
Oct 06, 2026340-1
Oct 05, 2026341+2
Oct 02, 2026339No prior observation