OITracker Cboe delayed data

Contract OI history

Back to HCAT

Dec 17, 2027 EXPIRATION

HCAT $2.50 Call

HCAT271217C00002500

Latest saved OI8Oct 23, 2026
Last change+2vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
HCAT $2.50 call open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 840 2026-10-08: 6 OI2026-10-09: 6 OI2026-10-13: 6 OI2026-10-14: 6 OI2026-10-16: 6 OI2026-10-20: 6 OI2026-10-23: 8 OI Oct 08, 2026Oct 23, 2026

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

HCAT contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing8+2
Oct 20, 202660
Oct 16, 202660
Oct 14, 202660
Oct 13, 202660
Oct 09, 202660
Oct 08, 20266No prior observation