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Contract OI history

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Jan 21, 2028 EXPIRATION

ACI $13.00 Put

ACI280121P00013000

Latest saved OI341Oct 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 $13.00 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. 3461730 2026-10-02: 346 OI2026-10-05: 346 OI2026-10-06: 346 OI2026-10-07: 346 OI2026-10-08: 346 OI2026-10-09: 346 OI2026-10-13: 336 OI2026-10-14: 336 OI2026-10-15: 336 OI2026-10-16: 336 OI2026-10-21: 341 OI2026-10-23: 341 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, 2026Viewing3410
Oct 21, 2026341+5
Oct 16, 20263360
Oct 15, 20263360
Oct 14, 20263360
Oct 13, 2026336-10
Oct 09, 20263460
Oct 08, 20263460
Oct 07, 20263460
Oct 06, 20263460
Oct 05, 20263460
Oct 02, 2026346No prior observation