OITracker Cboe delayed data

Contract OI history

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Oct 30, 2026 EXPIRATION

HAL $31.00 Put

HAL261030P00031000

Latest saved OI223Oct 23, 2026
Last change+41vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
HAL $31.00 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. 2231110 2026-10-02: 62 OI2026-10-05: 54 OI2026-10-06: 66 OI2026-10-07: 64 OI2026-10-08: 64 OI2026-10-09: 96 OI2026-10-13: 199 OI2026-10-14: 199 OI2026-10-15: 190 OI2026-10-16: 190 OI2026-10-21: 182 OI2026-10-23: 223 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, 2026Viewing223+41
Oct 21, 2026182-8
Oct 16, 20261900
Oct 15, 2026190-9
Oct 14, 20261990
Oct 13, 2026199+103
Oct 09, 202696+32
Oct 08, 2026640
Oct 07, 202664-2
Oct 06, 202666+12
Oct 05, 202654-8
Oct 02, 202662No prior observation