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Contract OI history

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Dec 17, 2027 EXPIRATION

ALC $72.50 Put

ALC271217P00072500

Latest saved OI175Oct 20, 2026
Last change0vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ALC $72.50 put open interest history 10 saved observations from 2026-10-02 to 2026-10-20. Exact values and changes are listed in the table below. 175870 2026-10-02: 165 OI2026-10-05: 165 OI2026-10-06: 175 OI2026-10-07: 175 OI2026-10-08: 175 OI2026-10-09: 175 OI2026-10-13: 175 OI2026-10-15: 175 OI2026-10-16: 175 OI2026-10-20: 175 OI Oct 02, 2026Oct 20, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

ALC contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 20, 2026Viewing1750
Oct 16, 20261750
Oct 15, 20261750
Oct 13, 20261750
Oct 09, 20261750
Oct 08, 20261750
Oct 07, 20261750
Oct 06, 2026175+10
Oct 05, 20261650
Oct 02, 2026165No prior observation