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Contract OI history

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Jan 15, 2027 EXPIRATION

CORT $100.00 Put

CORT270115P00100000

Latest saved OI1,027Oct 23, 2026
Last change-10vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
CORT $100.00 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. 1,0435210 2026-10-08: 1,007 OI2026-10-09: 1,043 OI2026-10-13: 1,043 OI2026-10-14: 1,043 OI2026-10-16: 1,043 OI2026-10-20: 1,037 OI2026-10-23: 1,027 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, 2026Viewing1,027-10
Oct 20, 20261,037-6
Oct 16, 20261,0430
Oct 14, 20261,0430
Oct 13, 20261,0430
Oct 09, 20261,043+36
Oct 08, 20261,007No prior observation