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Contract OI history

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Dec 17, 2027 EXPIRATION

ALC $75.00 Put

ALC271217P00075000

Latest saved OI220Oct 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 $75.00 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. 2201100 2026-10-02: 131 OI2026-10-05: 131 OI2026-10-06: 146 OI2026-10-07: 220 OI2026-10-08: 220 OI2026-10-09: 220 OI2026-10-13: 220 OI2026-10-15: 220 OI2026-10-16: 220 OI2026-10-20: 220 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, 2026Viewing2200
Oct 16, 20262200
Oct 15, 20262200
Oct 13, 20262200
Oct 09, 20262200
Oct 08, 20262200
Oct 07, 2026220+74
Oct 06, 2026146+15
Oct 05, 20261310
Oct 02, 2026131No prior observation