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Contract OI history

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Jan 21, 2028 EXPIRATION

ALC $75.00 Put

ALC280121P00075000

Latest saved OI555Oct 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. 5552770 2026-10-02: 548 OI2026-10-05: 548 OI2026-10-06: 555 OI2026-10-07: 555 OI2026-10-08: 555 OI2026-10-09: 555 OI2026-10-13: 555 OI2026-10-15: 555 OI2026-10-16: 555 OI2026-10-20: 555 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, 2026Viewing5550
Oct 16, 20265550
Oct 15, 20265550
Oct 13, 20265550
Oct 09, 20265550
Oct 08, 20265550
Oct 07, 20265550
Oct 06, 2026555+7
Oct 05, 20265480
Oct 02, 2026548No prior observation