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Contract OI history

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Jan 21, 2028 EXPIRATION

ALC $67.50 Put

ALC280121P00067500

Latest saved OI189Oct 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 $67.50 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. 189940 2026-10-02: 180 OI2026-10-05: 180 OI2026-10-06: 189 OI2026-10-07: 189 OI2026-10-08: 189 OI2026-10-09: 189 OI2026-10-13: 189 OI2026-10-15: 189 OI2026-10-16: 189 OI2026-10-20: 189 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, 2026Viewing1890
Oct 16, 20261890
Oct 15, 20261890
Oct 13, 20261890
Oct 09, 20261890
Oct 08, 20261890
Oct 07, 20261890
Oct 06, 2026189+9
Oct 05, 20261800
Oct 02, 2026180No prior observation