OITracker Cboe delayed data

Contract OI history

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Oct 30, 2026 EXPIRATION

HAL $37.50 Call

HAL261030C00037500

Latest saved OI219Oct 23, 2026
Last change+60vs previous saved observation
Saved market days6Oct 13, 2026 onwards
Daily open interest Hover a point for its date and OI
HAL $37.50 call open interest history 6 saved observations from 2026-10-13 to 2026-10-23. Exact values and changes are listed in the table below. 2191090 2026-10-13: 15 OI2026-10-14: 16 OI2026-10-15: 17 OI2026-10-16: 117 OI2026-10-21: 159 OI2026-10-23: 219 OI Oct 13, 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, 2026Viewing219+60
Oct 21, 2026159+42
Oct 16, 2026117+100
Oct 15, 202617+1
Oct 14, 202616+1
Oct 13, 202615No prior observation