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Contract OI history

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Nov 20, 2026 EXPIRATION

ALC $72.50 Put

ALC261120P00072500

Latest saved OI105Oct 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. 105520 2026-10-02: 105 OI2026-10-05: 105 OI2026-10-06: 105 OI2026-10-07: 105 OI2026-10-08: 105 OI2026-10-09: 105 OI2026-10-13: 105 OI2026-10-15: 105 OI2026-10-16: 105 OI2026-10-20: 105 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, 2026Viewing1050
Oct 16, 20261050
Oct 15, 20261050
Oct 13, 20261050
Oct 09, 20261050
Oct 08, 20261050
Oct 07, 20261050
Oct 06, 20261050
Oct 05, 20261050
Oct 02, 2026105No prior observation