OITracker Cboe delayed data

Contract OI history

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Oct 30, 2026 EXPIRATION

HAL $33.50 Put

HAL261030P00033500

Latest saved OI234Oct 23, 2026
Last change+22vs previous saved observation
Saved market days6Oct 13, 2026 onwards
Daily open interest Hover a point for its date and OI
HAL $33.50 put open interest history 6 saved observations from 2026-10-13 to 2026-10-23. Exact values and changes are listed in the table below. 2341170 2026-10-13: 4 OI2026-10-14: 4 OI2026-10-15: 5 OI2026-10-16: 5 OI2026-10-21: 212 OI2026-10-23: 234 OI Oct 13, 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, 2026Viewing234+22
Oct 21, 2026212+207
Oct 16, 202650
Oct 15, 20265+1
Oct 14, 202640
Oct 13, 20264No prior observation