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Contract OI history

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Nov 20, 2026 EXPIRATION

MA $550.00 Put

MA261120P00550000

Latest saved OI456Oct 23, 2026
Last change+9vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MA $550.00 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. 4602300 2026-10-02: 421 OI2026-10-05: 425 OI2026-10-06: 427 OI2026-10-07: 444 OI2026-10-08: 444 OI2026-10-09: 460 OI2026-10-13: 453 OI2026-10-14: 453 OI2026-10-15: 453 OI2026-10-16: 440 OI2026-10-21: 447 OI2026-10-23: 456 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, 2026Viewing456+9
Oct 21, 2026447+7
Oct 16, 2026440-13
Oct 15, 20264530
Oct 14, 20264530
Oct 13, 2026453-7
Oct 09, 2026460+16
Oct 08, 20264440
Oct 07, 2026444+17
Oct 06, 2026427+2
Oct 05, 2026425+4
Oct 02, 2026421No prior observation