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Contract OI history

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Jan 15, 2027 EXPIRATION

ALK $37.50 Put

ALK270115P00037500

Latest saved OI1,504Oct 23, 2026
Last change+5vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ALK $37.50 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. 1,5047520 2026-10-02: 1,493 OI2026-10-05: 1,491 OI2026-10-06: 1,491 OI2026-10-07: 1,491 OI2026-10-08: 1,492 OI2026-10-09: 1,492 OI2026-10-13: 1,492 OI2026-10-14: 1,492 OI2026-10-15: 1,494 OI2026-10-16: 1,495 OI2026-10-21: 1,499 OI2026-10-23: 1,504 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, 2026Viewing1,504+5
Oct 21, 20261,499+4
Oct 16, 20261,495+1
Oct 15, 20261,494+2
Oct 14, 20261,4920
Oct 13, 20261,4920
Oct 09, 20261,4920
Oct 08, 20261,492+1
Oct 07, 20261,4910
Oct 06, 20261,4910
Oct 05, 20261,491-2
Oct 02, 20261,493No prior observation