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Contract OI history

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Dec 17, 2027 EXPIRATION

ACH $2.50 Call

ACH271217C00002500

Latest saved OI103Oct 20, 2026
Last change0vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ACH $2.50 call open interest history 10 saved observations from 2026-10-02 to 2026-10-20. Exact values and changes are listed in the table below. 104520 2026-10-02: 42 OI2026-10-05: 42 OI2026-10-06: 104 OI2026-10-07: 104 OI2026-10-08: 104 OI2026-10-09: 104 OI2026-10-13: 104 OI2026-10-14: 103 OI2026-10-16: 103 OI2026-10-20: 103 OI Oct 02, 2026Oct 20, 2026

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

ACH contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 20, 2026Viewing1030
Oct 16, 20261030
Oct 14, 2026103-1
Oct 13, 20261040
Oct 09, 20261040
Oct 08, 20261040
Oct 07, 20261040
Oct 06, 2026104+62
Oct 05, 2026420
Oct 02, 202642No prior observation