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Contract OI history

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Feb 19, 2027 EXPIRATION

CORT $140.00 Put

CORT270219P00140000

Latest saved OI22Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
CORT $140.00 put open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 22110 2026-10-08: 19 OI2026-10-09: 19 OI2026-10-13: 20 OI2026-10-14: 20 OI2026-10-16: 20 OI2026-10-20: 22 OI2026-10-23: 22 OI Oct 08, 2026Oct 23, 2026

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

CORT contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing220
Oct 20, 202622+2
Oct 16, 2026200
Oct 14, 2026200
Oct 13, 202620+1
Oct 09, 2026190
Oct 08, 202619No prior observation