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Contract OI history

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Jan 15, 2027 EXPIRATION

MA $550.00 Put

MA270115P00550000

Latest saved OI278Oct 23, 2026
Last change-3vs 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. 2851420 2026-10-02: 281 OI2026-10-05: 281 OI2026-10-06: 283 OI2026-10-07: 285 OI2026-10-08: 285 OI2026-10-09: 280 OI2026-10-13: 281 OI2026-10-14: 281 OI2026-10-15: 277 OI2026-10-16: 279 OI2026-10-21: 281 OI2026-10-23: 278 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, 2026Viewing278-3
Oct 21, 2026281+2
Oct 16, 2026279+2
Oct 15, 2026277-4
Oct 14, 20262810
Oct 13, 2026281+1
Oct 09, 2026280-5
Oct 08, 20262850
Oct 07, 2026285+2
Oct 06, 2026283+2
Oct 05, 20262810
Oct 02, 2026281No prior observation