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Contract OI history

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Dec 18, 2026 EXPIRATION

ALK $30.00 Put

ALK261218P00030000

Latest saved OI635Oct 23, 2026
Last change+134vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ALK $30.00 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. 6353170 2026-10-02: 226 OI2026-10-05: 226 OI2026-10-06: 226 OI2026-10-07: 468 OI2026-10-08: 481 OI2026-10-09: 481 OI2026-10-13: 480 OI2026-10-14: 480 OI2026-10-15: 488 OI2026-10-16: 484 OI2026-10-21: 501 OI2026-10-23: 635 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, 2026Viewing635+134
Oct 21, 2026501+17
Oct 16, 2026484-4
Oct 15, 2026488+8
Oct 14, 20264800
Oct 13, 2026480-1
Oct 09, 20264810
Oct 08, 2026481+13
Oct 07, 2026468+242
Oct 06, 20262260
Oct 05, 20262260
Oct 02, 2026226No prior observation