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Contract OI history

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Jan 21, 2028 EXPIRATION

ALK $25.00 Put

ALK280121P00025000

Latest saved OI233Oct 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. 2331160 2026-10-02: 172 OI2026-10-05: 172 OI2026-10-06: 172 OI2026-10-07: 172 OI2026-10-08: 172 OI2026-10-09: 172 OI2026-10-13: 172 OI2026-10-14: 173 OI2026-10-15: 173 OI2026-10-16: 173 OI2026-10-21: 233 OI2026-10-23: 233 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, 2026Viewing2330
Oct 21, 2026233+60
Oct 16, 20261730
Oct 15, 20261730
Oct 14, 2026173+1
Oct 13, 20261720
Oct 09, 20261720
Oct 08, 20261720
Oct 07, 20261720
Oct 06, 20261720
Oct 05, 20261720
Oct 02, 2026172No prior observation