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Contract OI history

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Jun 17, 2027 EXPIRATION

HCA $525.00 Call

HCA270617C00525000

Latest saved OI300Oct 23, 2026
Last change0vs previous saved observation
Saved market days4Oct 15, 2026 onwards
Daily open interest Hover a point for its date and OI
HCA $525.00 call open interest history 4 saved observations from 2026-10-15 to 2026-10-23. Exact values and changes are listed in the table below. 3001500 2026-10-15: 0 OI2026-10-16: 0 OI2026-10-21: 300 OI2026-10-23: 300 OI Oct 15, 2026Oct 23, 2026

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

HCA contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing3000
Oct 21, 2026300+300
Oct 16, 202600
Oct 15, 20260No prior observation