OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

HAL $30.00 Put

HAL280121P00030000

Latest saved OI5,110Oct 23, 2026
Last change+158vs 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. 5,1102,5550 2026-10-02: 4,595 OI2026-10-05: 4,659 OI2026-10-06: 4,659 OI2026-10-07: 4,689 OI2026-10-08: 4,689 OI2026-10-09: 4,692 OI2026-10-13: 4,692 OI2026-10-14: 4,692 OI2026-10-15: 4,950 OI2026-10-16: 4,950 OI2026-10-21: 4,952 OI2026-10-23: 5,110 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, 2026Viewing5,110+158
Oct 21, 20264,952+2
Oct 16, 20264,9500
Oct 15, 20264,950+258
Oct 14, 20264,6920
Oct 13, 20264,6920
Oct 09, 20264,692+3
Oct 08, 20264,6890
Oct 07, 20264,689+30
Oct 06, 20264,6590
Oct 05, 20264,659+64
Oct 02, 20264,595No prior observation