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Contract OI history

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Dec 18, 2026 EXPIRATION

ACHV $2.50 Call

ACHV261218C00002500

Latest saved OI607Oct 23, 2026
Last change-1vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ACHV $2.50 call open interest history 6 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 6093040 2026-10-09: 609 OI2026-10-13: 609 OI2026-10-14: 609 OI2026-10-16: 609 OI2026-10-21: 608 OI2026-10-23: 607 OI Oct 09, 2026Oct 23, 2026

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

ACHV contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing607-1
Oct 21, 2026608-1
Oct 16, 20266090
Oct 14, 20266090
Oct 13, 20266090
Oct 09, 2026609No prior observation