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Contract OI history

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Jan 21, 2028 EXPIRATION

ACI $10.00 Put

ACI280121P00010000

Latest saved OI4,404Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ACI $10.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 4,4062,2030 2026-10-02: 2,882 OI2026-10-05: 2,882 OI2026-10-06: 2,909 OI2026-10-07: 2,909 OI2026-10-08: 2,909 OI2026-10-09: 2,906 OI2026-10-13: 4,406 OI2026-10-14: 4,406 OI2026-10-15: 4,406 OI2026-10-16: 4,406 OI2026-10-21: 4,404 OI2026-10-23: 4,404 OI Oct 02, 2026Oct 23, 2026

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

ACI contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing4,4040
Oct 21, 20264,404-2
Oct 16, 20264,4060
Oct 15, 20264,4060
Oct 14, 20264,4060
Oct 13, 20264,406+1,500
Oct 09, 20262,906-3
Oct 08, 20262,9090
Oct 07, 20262,9090
Oct 06, 20262,909+27
Oct 05, 20262,8820
Oct 02, 20262,882No prior observation