OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

HAL $42.00 Put

HAL261218P00042000

Latest saved OI2,548Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
HAL $42.00 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. 2,5481,2740 2026-10-02: 2,548 OI2026-10-05: 2,548 OI2026-10-06: 2,548 OI2026-10-07: 2,548 OI2026-10-08: 2,548 OI2026-10-09: 2,548 OI2026-10-13: 2,548 OI2026-10-14: 2,548 OI2026-10-15: 2,548 OI2026-10-16: 2,548 OI2026-10-21: 2,548 OI2026-10-23: 2,548 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, 2026Viewing2,5480
Oct 21, 20262,5480
Oct 16, 20262,5480
Oct 15, 20262,5480
Oct 14, 20262,5480
Oct 13, 20262,5480
Oct 09, 20262,5480
Oct 08, 20262,5480
Oct 07, 20262,5480
Oct 06, 20262,5480
Oct 05, 20262,5480
Oct 02, 20262,548No prior observation