OITracker Cboe delayed data

Contract OI history

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Jan 19, 2029 EXPIRATION

HAL $28.00 Put

HAL290119P00028000

Latest saved OI642Oct 23, 2026
Last change-1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
HAL $28.00 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. 6433210 2026-10-02: 0 OI2026-10-05: 0 OI2026-10-06: 640 OI2026-10-07: 641 OI2026-10-08: 641 OI2026-10-09: 641 OI2026-10-13: 641 OI2026-10-14: 641 OI2026-10-15: 641 OI2026-10-16: 641 OI2026-10-21: 643 OI2026-10-23: 642 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, 2026Viewing642-1
Oct 21, 2026643+2
Oct 16, 20266410
Oct 15, 20266410
Oct 14, 20266410
Oct 13, 20266410
Oct 09, 20266410
Oct 08, 20266410
Oct 07, 2026641+1
Oct 06, 2026640+640
Oct 05, 202600
Oct 02, 20260No prior observation