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Contract OI history

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Nov 20, 2026 EXPIRATION

ACI $11.00 Put

ACI261120P00011000

Latest saved OI311Oct 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 $11.00 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. 3231610 2026-10-02: 214 OI2026-10-05: 222 OI2026-10-06: 253 OI2026-10-07: 260 OI2026-10-08: 260 OI2026-10-09: 261 OI2026-10-13: 322 OI2026-10-14: 322 OI2026-10-15: 322 OI2026-10-16: 323 OI2026-10-21: 311 OI2026-10-23: 311 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, 2026Viewing3110
Oct 21, 2026311-12
Oct 16, 2026323+1
Oct 15, 20263220
Oct 14, 20263220
Oct 13, 2026322+61
Oct 09, 2026261+1
Oct 08, 20262600
Oct 07, 2026260+7
Oct 06, 2026253+31
Oct 05, 2026222+8
Oct 02, 2026214No prior observation