OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

HAL $27.00 Put

HAL280121P00027000

Latest saved OI1,917Oct 23, 2026
Last change+1,000vs 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. 1,9179580 2026-10-02: 900 OI2026-10-05: 900 OI2026-10-06: 903 OI2026-10-07: 907 OI2026-10-08: 907 OI2026-10-09: 917 OI2026-10-13: 917 OI2026-10-14: 917 OI2026-10-15: 917 OI2026-10-16: 917 OI2026-10-21: 917 OI2026-10-23: 1,917 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, 2026Viewing1,917+1,000
Oct 21, 20269170
Oct 16, 20269170
Oct 15, 20269170
Oct 14, 20269170
Oct 13, 20269170
Oct 09, 2026917+10
Oct 08, 20269070
Oct 07, 2026907+4
Oct 06, 2026903+3
Oct 05, 20269000
Oct 02, 2026900No prior observation