OITracker Cboe delayed data

Contract OI history

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Mar 19, 2027 EXPIRATION

HAL $28.00 Put

HAL270319P00028000

Latest saved OI773Oct 23, 2026
Last change+11vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
HAL $28.00 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. 7733860 2026-10-02: 765 OI2026-10-05: 765 OI2026-10-06: 765 OI2026-10-07: 769 OI2026-10-08: 769 OI2026-10-09: 769 OI2026-10-13: 759 OI2026-10-14: 760 OI2026-10-15: 761 OI2026-10-16: 761 OI2026-10-21: 762 OI2026-10-23: 773 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, 2026Viewing773+11
Oct 21, 2026762+1
Oct 16, 20267610
Oct 15, 2026761+1
Oct 14, 2026760+1
Oct 13, 2026759-10
Oct 09, 20267690
Oct 08, 20267690
Oct 07, 2026769+4
Oct 06, 20267650
Oct 05, 20267650
Oct 02, 2026765No prior observation