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Contract OI history

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Jan 15, 2027 EXPIRATION

CORT $105.00 Put

CORT270115P00105000

Latest saved OI134Oct 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 $105.00 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. 134670 2026-10-08: 46 OI2026-10-09: 131 OI2026-10-13: 131 OI2026-10-14: 133 OI2026-10-16: 134 OI2026-10-20: 134 OI2026-10-23: 134 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, 2026Viewing1340
Oct 20, 20261340
Oct 16, 2026134+1
Oct 14, 2026133+2
Oct 13, 20261310
Oct 09, 2026131+85
Oct 08, 202646No prior observation