OITracker Cboe delayed data

Contract OI history

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Mar 19, 2027 EXPIRATION

HAL $25.00 Put

HAL270319P00025000

Latest saved OI658Oct 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 $25.00 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. 6583290 2026-10-02: 646 OI2026-10-05: 646 OI2026-10-06: 656 OI2026-10-07: 656 OI2026-10-08: 656 OI2026-10-09: 656 OI2026-10-13: 656 OI2026-10-14: 656 OI2026-10-15: 656 OI2026-10-16: 656 OI2026-10-21: 658 OI2026-10-23: 658 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, 2026Viewing6580
Oct 21, 2026658+2
Oct 16, 20266560
Oct 15, 20266560
Oct 14, 20266560
Oct 13, 20266560
Oct 09, 20266560
Oct 08, 20266560
Oct 07, 20266560
Oct 06, 2026656+10
Oct 05, 20266460
Oct 02, 2026646No prior observation