OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

HAL $30.00 Put

HAL261218P00030000

Latest saved OI1,992Oct 23, 2026
Last change-47vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
HAL $30.00 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. 2,0391,0190 2026-10-02: 1,813 OI2026-10-05: 1,813 OI2026-10-06: 1,813 OI2026-10-07: 1,810 OI2026-10-08: 1,810 OI2026-10-09: 1,830 OI2026-10-13: 1,926 OI2026-10-14: 1,970 OI2026-10-15: 2,001 OI2026-10-16: 2,003 OI2026-10-21: 2,039 OI2026-10-23: 1,992 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, 2026Viewing1,992-47
Oct 21, 20262,039+36
Oct 16, 20262,003+2
Oct 15, 20262,001+31
Oct 14, 20261,970+44
Oct 13, 20261,926+96
Oct 09, 20261,830+20
Oct 08, 20261,8100
Oct 07, 20261,810-3
Oct 06, 20261,8130
Oct 05, 20261,8130
Oct 02, 20261,813No prior observation