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Contract OI history

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Oct 30, 2026 EXPIRATION

ACI $12.50 Put

ACI261030P00012500

Latest saved OI226Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ACI $12.50 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 2261130 2026-10-09: 0 OI2026-10-13: 203 OI2026-10-14: 203 OI2026-10-15: 203 OI2026-10-16: 219 OI2026-10-21: 226 OI2026-10-23: 226 OI Oct 09, 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, 2026Viewing2260
Oct 21, 2026226+7
Oct 16, 2026219+16
Oct 15, 20262030
Oct 14, 20262030
Oct 13, 2026203+203
Oct 09, 20260No prior observation