OITracker Cboe delayed data

Contract OI history

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Oct 23, 2026 EXPIRATION

HAL $31.00 Put

HAL261023P00031000

Latest saved OI587Oct 23, 2026
Last change-36vs 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. 6233110 2026-10-02: 47 OI2026-10-05: 57 OI2026-10-06: 85 OI2026-10-07: 88 OI2026-10-08: 88 OI2026-10-09: 101 OI2026-10-13: 253 OI2026-10-14: 304 OI2026-10-15: 345 OI2026-10-16: 350 OI2026-10-21: 623 OI2026-10-23: 587 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, 2026Viewing587-36
Oct 21, 2026623+273
Oct 16, 2026350+5
Oct 15, 2026345+41
Oct 14, 2026304+51
Oct 13, 2026253+152
Oct 09, 2026101+13
Oct 08, 2026880
Oct 07, 202688+3
Oct 06, 202685+28
Oct 05, 202657+10
Oct 02, 202647No prior observation