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Contract OI history

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Dec 18, 2026 EXPIRATION

ACAD $22.00 Put

ACAD261218P00022000

Latest saved OI1,008Oct 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 $22.00 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. 1,0085040 2026-10-08: 1,006 OI2026-10-09: 1,006 OI2026-10-13: 1,008 OI2026-10-14: 1,008 OI2026-10-16: 1,008 OI2026-10-20: 1,008 OI2026-10-23: 1,008 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, 2026Viewing1,0080
Oct 20, 20261,0080
Oct 16, 20261,0080
Oct 14, 20261,0080
Oct 13, 20261,008+2
Oct 09, 20261,0060
Oct 08, 20261,006No prior observation