OITracker Cboe delayed data

Contract OI history

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Mar 19, 2027 EXPIRATION

HRTX $500.00 Call

HRTX270319C00000500

Latest saved OI1,508Oct 23, 2026
Last change0vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
HRTX $500.00 call open interest history 6 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 1,5087540 2026-10-09: 1,474 OI2026-10-13: 1,484 OI2026-10-14: 1,485 OI2026-10-16: 1,508 OI2026-10-20: 1,508 OI2026-10-23: 1,508 OI Oct 09, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

HRTX contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,5080
Oct 20, 20261,5080
Oct 16, 20261,508+23
Oct 14, 20261,485+1
Oct 13, 20261,484+10
Oct 09, 20261,474No prior observation