OITracker Cboe delayed data

Contract OI history

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Oct 23, 2026 EXPIRATION

HAL $30.50 Put

HAL261023P00030500

Latest saved OI419Oct 23, 2026
Last change-10vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
HAL $30.50 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. 4292140 2026-10-02: 0 OI2026-10-05: 0 OI2026-10-06: 316 OI2026-10-07: 294 OI2026-10-08: 294 OI2026-10-09: 294 OI2026-10-13: 332 OI2026-10-14: 332 OI2026-10-15: 337 OI2026-10-16: 354 OI2026-10-21: 429 OI2026-10-23: 419 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, 2026Viewing419-10
Oct 21, 2026429+75
Oct 16, 2026354+17
Oct 15, 2026337+5
Oct 14, 20263320
Oct 13, 2026332+38
Oct 09, 20262940
Oct 08, 20262940
Oct 07, 2026294-22
Oct 06, 2026316+316
Oct 05, 202600
Oct 02, 20260No prior observation