OITracker Cboe delayed data

Contract OI history

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Mar 19, 2027 EXPIRATION

HAL $40.00 Call

HAL270319C00040000

Latest saved OI582Oct 23, 2026
Last change+35vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
HAL $40.00 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. 5822910 2026-10-02: 521 OI2026-10-05: 521 OI2026-10-06: 521 OI2026-10-07: 539 OI2026-10-08: 539 OI2026-10-09: 541 OI2026-10-13: 548 OI2026-10-14: 548 OI2026-10-15: 549 OI2026-10-16: 549 OI2026-10-21: 547 OI2026-10-23: 582 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, 2026Viewing582+35
Oct 21, 2026547-2
Oct 16, 20265490
Oct 15, 2026549+1
Oct 14, 20265480
Oct 13, 2026548+7
Oct 09, 2026541+2
Oct 08, 20265390
Oct 07, 2026539+18
Oct 06, 20265210
Oct 05, 20265210
Oct 02, 2026521No prior observation