OITracker Cboe delayed data

Contract OI history

Back to ALK

Nov 20, 2026 EXPIRATION

ALK $37.50 Put

ALK261120P00037500

Latest saved OI836Oct 23, 2026
Last change-19vs 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. 8554270 2026-10-02: 256 OI2026-10-05: 291 OI2026-10-06: 291 OI2026-10-07: 633 OI2026-10-08: 636 OI2026-10-09: 688 OI2026-10-13: 695 OI2026-10-14: 712 OI2026-10-15: 718 OI2026-10-16: 769 OI2026-10-21: 855 OI2026-10-23: 836 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, 2026Viewing836-19
Oct 21, 2026855+86
Oct 16, 2026769+51
Oct 15, 2026718+6
Oct 14, 2026712+17
Oct 13, 2026695+7
Oct 09, 2026688+52
Oct 08, 2026636+3
Oct 07, 2026633+342
Oct 06, 20262910
Oct 05, 2026291+35
Oct 02, 2026256No prior observation