OITracker Cboe delayed data

Contract OI history

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Mar 19, 2027 EXPIRATION

HAL $30.00 Put

HAL270319P00030000

Latest saved OI2,679Oct 23, 2026
Last change+15vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
HAL $30.00 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. 2,6791,3390 2026-10-02: 2,665 OI2026-10-05: 2,663 OI2026-10-06: 2,663 OI2026-10-07: 2,667 OI2026-10-08: 2,667 OI2026-10-09: 2,667 OI2026-10-13: 2,660 OI2026-10-14: 2,660 OI2026-10-15: 2,661 OI2026-10-16: 2,659 OI2026-10-21: 2,664 OI2026-10-23: 2,679 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, 2026Viewing2,679+15
Oct 21, 20262,664+5
Oct 16, 20262,659-2
Oct 15, 20262,661+1
Oct 14, 20262,6600
Oct 13, 20262,660-7
Oct 09, 20262,6670
Oct 08, 20262,6670
Oct 07, 20262,667+4
Oct 06, 20262,6630
Oct 05, 20262,663-2
Oct 02, 20262,665No prior observation