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Contract OI history

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Nov 20, 2026 EXPIRATION

MA $500.00 Put

MA261120P00500000

Latest saved OI243Oct 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 $500.00 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. 3501750 2026-10-02: 344 OI2026-10-05: 348 OI2026-10-06: 350 OI2026-10-07: 266 OI2026-10-08: 266 OI2026-10-09: 263 OI2026-10-13: 250 OI2026-10-14: 250 OI2026-10-15: 245 OI2026-10-16: 243 OI2026-10-21: 243 OI2026-10-23: 243 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, 2026Viewing2430
Oct 21, 20262430
Oct 16, 2026243-2
Oct 15, 2026245-5
Oct 14, 20262500
Oct 13, 2026250-13
Oct 09, 2026263-3
Oct 08, 20262660
Oct 07, 2026266-84
Oct 06, 2026350+2
Oct 05, 2026348+4
Oct 02, 2026344No prior observation