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Contract OI history

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Jan 21, 2028 EXPIRATION

ALK $35.00 Put

ALK280121P00035000

Latest saved OI332Oct 23, 2026
Last change+1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ALK $35.00 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. 3321660 2026-10-02: 314 OI2026-10-05: 315 OI2026-10-06: 315 OI2026-10-07: 315 OI2026-10-08: 315 OI2026-10-09: 315 OI2026-10-13: 315 OI2026-10-14: 315 OI2026-10-15: 328 OI2026-10-16: 328 OI2026-10-21: 331 OI2026-10-23: 332 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, 2026Viewing332+1
Oct 21, 2026331+3
Oct 16, 20263280
Oct 15, 2026328+13
Oct 14, 20263150
Oct 13, 20263150
Oct 09, 20263150
Oct 08, 20263150
Oct 07, 20263150
Oct 06, 20263150
Oct 05, 2026315+1
Oct 02, 2026314No prior observation