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Contract OI history

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Jan 21, 2028 EXPIRATION

MA $640.00 Call

MA280121C00640000

Latest saved OI356Oct 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 $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. 3561780 2026-10-02: 353 OI2026-10-05: 353 OI2026-10-06: 353 OI2026-10-07: 353 OI2026-10-08: 353 OI2026-10-09: 356 OI2026-10-13: 356 OI2026-10-14: 356 OI2026-10-15: 356 OI2026-10-16: 356 OI2026-10-21: 356 OI2026-10-23: 356 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, 2026Viewing3560
Oct 21, 20263560
Oct 16, 20263560
Oct 15, 20263560
Oct 14, 20263560
Oct 13, 20263560
Oct 09, 2026356+3
Oct 08, 20263530
Oct 07, 20263530
Oct 06, 20263530
Oct 05, 20263530
Oct 02, 2026353No prior observation