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Contract OI history

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May 21, 2027 EXPIRATION

ALK $25.00 Put

ALK270521P00025000

Latest saved OI191Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ALK $25.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 191950 2026-10-02: 191 OI2026-10-05: 191 OI2026-10-06: 191 OI2026-10-07: 191 OI2026-10-08: 191 OI2026-10-09: 190 OI2026-10-13: 190 OI2026-10-14: 190 OI2026-10-15: 190 OI2026-10-16: 190 OI2026-10-21: 191 OI2026-10-23: 191 OI Oct 02, 2026Oct 23, 2026

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

ALK contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1910
Oct 21, 2026191+1
Oct 16, 20261900
Oct 15, 20261900
Oct 14, 20261900
Oct 13, 20261900
Oct 09, 2026190-1
Oct 08, 20261910
Oct 07, 20261910
Oct 06, 20261910
Oct 05, 20261910
Oct 02, 2026191No prior observation