OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

HAL $27.00 Put

HAL270115P00027000

Latest saved OI7,100Oct 23, 2026
Last change+212vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
HAL $27.00 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. 7,1003,5500 2026-10-02: 7,038 OI2026-10-05: 7,043 OI2026-10-06: 7,043 OI2026-10-07: 7,043 OI2026-10-08: 7,043 OI2026-10-09: 7,053 OI2026-10-13: 7,053 OI2026-10-14: 7,053 OI2026-10-15: 7,053 OI2026-10-16: 6,888 OI2026-10-21: 6,888 OI2026-10-23: 7,100 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

HAL contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing7,100+212
Oct 21, 20266,8880
Oct 16, 20266,888-165
Oct 15, 20267,0530
Oct 14, 20267,0530
Oct 13, 20267,0530
Oct 09, 20267,053+10
Oct 08, 20267,0430
Oct 07, 20267,0430
Oct 06, 20267,0430
Oct 05, 20267,043+5
Oct 02, 20267,038No prior observation