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Contract OI history

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Dec 18, 2026 EXPIRATION

MA $640.00 Call

MA261218C00640000

Latest saved OI474Oct 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 $640.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 5032510 2026-10-02: 503 OI2026-10-05: 452 OI2026-10-06: 453 OI2026-10-07: 453 OI2026-10-08: 453 OI2026-10-09: 454 OI2026-10-13: 459 OI2026-10-14: 459 OI2026-10-15: 459 OI2026-10-16: 459 OI2026-10-21: 472 OI2026-10-23: 474 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, 2026Viewing474+2
Oct 21, 2026472+13
Oct 16, 20264590
Oct 15, 20264590
Oct 14, 20264590
Oct 13, 2026459+5
Oct 09, 2026454+1
Oct 08, 20264530
Oct 07, 20264530
Oct 06, 2026453+1
Oct 05, 2026452-51
Oct 02, 2026503No prior observation