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Contract OI history

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Dec 18, 2026 EXPIRATION

ACAD $20.00 Call

ACAD261218C00020000

Latest saved OI420Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
ACAD $20.00 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. 4202100 2026-10-08: 1 OI2026-10-09: 1 OI2026-10-13: 131 OI2026-10-14: 131 OI2026-10-16: 420 OI2026-10-20: 420 OI2026-10-23: 420 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, 2026Viewing4200
Oct 20, 20264200
Oct 16, 2026420+289
Oct 14, 20261310
Oct 13, 2026131+130
Oct 09, 202610
Oct 08, 20261No prior observation