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Contract OI history

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Nov 20, 2026 EXPIRATION

ACAD $21.00 Call

ACAD261120C00021000

Latest saved OI7,035Oct 23, 2026
Last change-4vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
ACAD $21.00 call open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 7,0393,5190 2026-10-08: 1,006 OI2026-10-09: 1,006 OI2026-10-13: 1,006 OI2026-10-14: 1,006 OI2026-10-16: 1,006 OI2026-10-20: 7,039 OI2026-10-23: 7,035 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, 2026Viewing7,035-4
Oct 20, 20267,039+6,033
Oct 16, 20261,0060
Oct 14, 20261,0060
Oct 13, 20261,0060
Oct 09, 20261,0060
Oct 08, 20261,006No prior observation