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Contract OI history

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Mar 19, 2027 EXPIRATION

ALK $32.50 Put

ALK270319P00032500

Latest saved OI228Oct 23, 2026
Last change-1,496vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ALK $32.50 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. 1,7248620 2026-10-02: 1,710 OI2026-10-05: 1,713 OI2026-10-06: 1,713 OI2026-10-07: 1,713 OI2026-10-08: 1,713 OI2026-10-09: 1,713 OI2026-10-13: 1,721 OI2026-10-14: 1,721 OI2026-10-15: 1,724 OI2026-10-16: 1,723 OI2026-10-21: 1,724 OI2026-10-23: 228 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, 2026Viewing228-1,496
Oct 21, 20261,724+1
Oct 16, 20261,723-1
Oct 15, 20261,724+3
Oct 14, 20261,7210
Oct 13, 20261,721+8
Oct 09, 20261,7130
Oct 08, 20261,7130
Oct 07, 20261,7130
Oct 06, 20261,7130
Oct 05, 20261,713+3
Oct 02, 20261,710No prior observation