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Contract OI history

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Jan 15, 2027 EXPIRATION

CORT $120.00 Put

CORT270115P00120000

Latest saved OI119Oct 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 $120.00 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. 119590 2026-10-08: 106 OI2026-10-09: 106 OI2026-10-13: 106 OI2026-10-14: 112 OI2026-10-16: 112 OI2026-10-20: 119 OI2026-10-23: 119 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, 2026Viewing1190
Oct 20, 2026119+7
Oct 16, 20261120
Oct 14, 2026112+6
Oct 13, 20261060
Oct 09, 20261060
Oct 08, 2026106No prior observation