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Contract OI history

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Dec 18, 2026 EXPIRATION

ALK $52.50 Put

ALK261218P00052500

Latest saved OI16Oct 23, 2026
Last change-62vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ALK $52.50 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. 109540 2026-10-02: 109 OI2026-10-05: 109 OI2026-10-06: 109 OI2026-10-07: 109 OI2026-10-08: 109 OI2026-10-09: 109 OI2026-10-13: 109 OI2026-10-14: 109 OI2026-10-15: 109 OI2026-10-16: 109 OI2026-10-21: 78 OI2026-10-23: 16 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, 2026Viewing16-62
Oct 21, 202678-31
Oct 16, 20261090
Oct 15, 20261090
Oct 14, 20261090
Oct 13, 20261090
Oct 09, 20261090
Oct 08, 20261090
Oct 07, 20261090
Oct 06, 20261090
Oct 05, 20261090
Oct 02, 2026109No prior observation