OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

HAL $35.00 Call

HAL280121C00035000

Latest saved OI1,091Oct 23, 2026
Last change+10vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
HAL $35.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,0915450 2026-10-02: 1,049 OI2026-10-05: 1,049 OI2026-10-06: 1,049 OI2026-10-07: 1,051 OI2026-10-08: 1,051 OI2026-10-09: 1,051 OI2026-10-13: 1,051 OI2026-10-14: 1,057 OI2026-10-15: 1,057 OI2026-10-16: 1,077 OI2026-10-21: 1,081 OI2026-10-23: 1,091 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, 2026Viewing1,091+10
Oct 21, 20261,081+4
Oct 16, 20261,077+20
Oct 15, 20261,0570
Oct 14, 20261,057+6
Oct 13, 20261,0510
Oct 09, 20261,0510
Oct 08, 20261,0510
Oct 07, 20261,051+2
Oct 06, 20261,0490
Oct 05, 20261,0490
Oct 02, 20261,049No prior observation