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Contract OI history

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Feb 19, 2027 EXPIRATION

ICHR $27.50 Put

ICHR270219P00027500

Latest saved OI2Oct 20, 2026
Last change+2vs previous saved observation
Saved market days2Oct 16, 2026 onwards
Daily open interest Hover a point for its date and OI
ICHR $27.50 put open interest history 2 saved observations from 2026-10-16 to 2026-10-20. Exact values and changes are listed in the table below. 210 2026-10-16: 0 OI2026-10-20: 2 OI Oct 16, 2026Oct 20, 2026

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

ICHR contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 20, 2026Viewing2+2
Oct 16, 20260No prior observation