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Contract OI history

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Nov 20, 2026 EXPIRATION

ACI $13.50 Put

ACI261120P00013500

Latest saved OI32Oct 23, 2026
Last change+29vs previous saved observation
Saved market days2Oct 21, 2026 onwards
Daily open interest Hover a point for its date and OI
ACI $13.50 put open interest history 2 saved observations from 2026-10-21 to 2026-10-23. Exact values and changes are listed in the table below. 32160 2026-10-21: 3 OI2026-10-23: 32 OI Oct 21, 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, 2026Viewing32+29
Oct 21, 20263No prior observation