OITracker Cboe delayed data

Contract OI history

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Mar 19, 2027 EXPIRATION

HAL $35.00 Call

HAL270319C00035000

Latest saved OI1,175Oct 23, 2026
Last change+137vs 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. 1,2606300 2026-10-02: 1,247 OI2026-10-05: 1,248 OI2026-10-06: 1,260 OI2026-10-07: 957 OI2026-10-08: 957 OI2026-10-09: 957 OI2026-10-13: 957 OI2026-10-14: 957 OI2026-10-15: 973 OI2026-10-16: 973 OI2026-10-21: 1,038 OI2026-10-23: 1,175 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, 2026Viewing1,175+137
Oct 21, 20261,038+65
Oct 16, 20269730
Oct 15, 2026973+16
Oct 14, 20269570
Oct 13, 20269570
Oct 09, 20269570
Oct 08, 20269570
Oct 07, 2026957-303
Oct 06, 20261,260+12
Oct 05, 20261,248+1
Oct 02, 20261,247No prior observation