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Contract OI history

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May 21, 2027 EXPIRATION

ICHR $22.50 Put

ICHR270521P00022500

Latest saved OI10Oct 20, 2026
Last change—vs previous saved observation
Saved market days1Oct 20, 2026 onwards
Daily open interest Hover a point for its date and OI
ICHR $22.50 put open interest history 1 saved observations from 2026-10-20 to 2026-10-20. Exact values and changes are listed in the table below. 1050 2026-10-20: 10 OI Oct 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, 2026Viewing10No prior observation