OITracker Cboe delayed data

Contract OI history

Back to HAL

Jan 21, 2028 EXPIRATION

HAL $35.00 Put

HAL280121P00035000

Latest saved OI1,191Oct 23, 2026
Last change+17vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
HAL $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. 1,1915950 2026-10-02: 1,067 OI2026-10-05: 1,174 OI2026-10-06: 1,174 OI2026-10-07: 1,174 OI2026-10-08: 1,174 OI2026-10-09: 1,174 OI2026-10-13: 1,174 OI2026-10-14: 1,174 OI2026-10-15: 1,174 OI2026-10-16: 1,174 OI2026-10-21: 1,174 OI2026-10-23: 1,191 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, 2026Viewing1,191+17
Oct 21, 20261,1740
Oct 16, 20261,1740
Oct 15, 20261,1740
Oct 14, 20261,1740
Oct 13, 20261,1740
Oct 09, 20261,1740
Oct 08, 20261,1740
Oct 07, 20261,1740
Oct 06, 20261,1740
Oct 05, 20261,174+107
Oct 02, 20261,067No prior observation