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Contract OI history

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Dec 18, 2026 EXPIRATION

ACI $13.00 Put

ACI261218P00013000

Latest saved OI282Oct 23, 2026
Last change+45vs previous saved observation
Saved market days4Oct 15, 2026 onwards
Daily open interest Hover a point for its date and OI
ACI $13.00 put open interest history 4 saved observations from 2026-10-15 to 2026-10-23. Exact values and changes are listed in the table below. 2821410 2026-10-15: 0 OI2026-10-16: 0 OI2026-10-21: 237 OI2026-10-23: 282 OI Oct 15, 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, 2026Viewing282+45
Oct 21, 2026237+237
Oct 16, 202600
Oct 15, 20260No prior observation