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Contract OI history

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Jan 15, 2027 EXPIRATION

ALK $27.50 Put

ALK270115P00027500

Latest saved OI179Oct 23, 2026
Last change+7vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ALK $27.50 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. 179890 2026-10-02: 162 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: 172 OI2026-10-15: 172 OI2026-10-16: 172 OI2026-10-21: 172 OI2026-10-23: 179 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, 2026Viewing179+7
Oct 21, 20261720
Oct 16, 20261720
Oct 15, 20261720
Oct 14, 20261720
Oct 13, 20261720
Oct 09, 20261720
Oct 08, 20261720
Oct 07, 20261720
Oct 06, 20261720
Oct 05, 2026172+10
Oct 02, 2026162No prior observation