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Contract OI history

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Dec 18, 2026 EXPIRATION

ICHR $27.50 Put

ICHR261218P00027500

Latest saved OI14Oct 20, 2026
Last change-1vs previous saved observation
Saved market days5Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ICHR $27.50 put open interest history 5 saved observations from 2026-10-09 to 2026-10-20. Exact values and changes are listed in the table below. 1890 2026-10-09: 18 OI2026-10-13: 18 OI2026-10-14: 18 OI2026-10-16: 15 OI2026-10-20: 14 OI Oct 09, 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, 2026Viewing14-1
Oct 16, 202615-3
Oct 14, 2026180
Oct 13, 2026180
Oct 09, 202618No prior observation