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Contract OI history

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Jan 21, 2028 EXPIRATION

ALK $32.50 Put

ALK280121P00032500

Latest saved OI153Oct 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 $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. 153760 2026-10-02: 146 OI2026-10-05: 146 OI2026-10-06: 146 OI2026-10-07: 146 OI2026-10-08: 146 OI2026-10-09: 146 OI2026-10-13: 146 OI2026-10-14: 146 OI2026-10-15: 146 OI2026-10-16: 146 OI2026-10-21: 153 OI2026-10-23: 153 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, 2026Viewing1530
Oct 21, 2026153+7
Oct 16, 20261460
Oct 15, 20261460
Oct 14, 20261460
Oct 13, 20261460
Oct 09, 20261460
Oct 08, 20261460
Oct 07, 20261460
Oct 06, 20261460
Oct 05, 20261460
Oct 02, 2026146No prior observation