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Contract OI history

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Jan 21, 2028 EXPIRATION

ACHC $12.50 Call

ACHC280121C00012500

Latest saved OI21Oct 20, 2026
Last change0vs previous saved observation
Saved market days5Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ACHC $12.50 call open interest history 5 saved observations from 2026-10-09 to 2026-10-20. Exact values and changes are listed in the table below. 21100 2026-10-09: 21 OI2026-10-13: 21 OI2026-10-14: 21 OI2026-10-16: 21 OI2026-10-20: 21 OI Oct 09, 2026Oct 20, 2026

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

ACHC contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 20, 2026Viewing210
Oct 16, 2026210
Oct 14, 2026210
Oct 13, 2026210
Oct 09, 202621No prior observation