OITracker Cboe delayed data

Contract OI history

Back to ALK

Jan 21, 2028 EXPIRATION

ALK $37.50 Put

ALK280121P00037500

Latest saved OI201Oct 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 $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. 2011000 2026-10-02: 59 OI2026-10-05: 159 OI2026-10-06: 159 OI2026-10-07: 159 OI2026-10-08: 159 OI2026-10-09: 160 OI2026-10-13: 160 OI2026-10-14: 162 OI2026-10-15: 162 OI2026-10-16: 162 OI2026-10-21: 201 OI2026-10-23: 201 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, 2026Viewing2010
Oct 21, 2026201+39
Oct 16, 20261620
Oct 15, 20261620
Oct 14, 2026162+2
Oct 13, 20261600
Oct 09, 2026160+1
Oct 08, 20261590
Oct 07, 20261590
Oct 06, 20261590
Oct 05, 2026159+100
Oct 02, 202659No prior observation