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Contract OI history

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Nov 20, 2026 EXPIRATION

MA $540.00 Put

MA261120P00540000

Latest saved OI330Oct 23, 2026
Last change-2vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MA $540.00 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. 3551770 2026-10-02: 310 OI2026-10-05: 310 OI2026-10-06: 322 OI2026-10-07: 326 OI2026-10-08: 326 OI2026-10-09: 344 OI2026-10-13: 355 OI2026-10-14: 355 OI2026-10-15: 354 OI2026-10-16: 349 OI2026-10-21: 332 OI2026-10-23: 330 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, 2026Viewing330-2
Oct 21, 2026332-17
Oct 16, 2026349-5
Oct 15, 2026354-1
Oct 14, 20263550
Oct 13, 2026355+11
Oct 09, 2026344+18
Oct 08, 20263260
Oct 07, 2026326+4
Oct 06, 2026322+12
Oct 05, 20263100
Oct 02, 2026310No prior observation