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Contract OI history

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Nov 20, 2026 EXPIRATION

ACAD $26.00 Put

ACAD261120P00026000

Latest saved OI680Oct 23, 2026
Last change-77vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
ACAD $26.00 put open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 4,3292,1640 2026-10-08: 4,329 OI2026-10-09: 4,329 OI2026-10-13: 849 OI2026-10-14: 849 OI2026-10-16: 849 OI2026-10-20: 757 OI2026-10-23: 680 OI Oct 08, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

ACAD contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing680-77
Oct 20, 2026757-92
Oct 16, 20268490
Oct 14, 20268490
Oct 13, 2026849-3,480
Oct 09, 20264,3290
Oct 08, 20264,329No prior observation