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Contract OI history

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Nov 20, 2026 EXPIRATION

COHR $280.00 Put

COHR261120P00280000

Latest saved OI2,436Oct 23, 2026
Last change-26vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COHR $280.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 2,4621,2310 2026-10-02: 1,843 OI2026-10-05: 1,786 OI2026-10-06: 2,119 OI2026-10-07: 2,214 OI2026-10-08: 2,214 OI2026-10-09: 2,348 OI2026-10-13: 2,341 OI2026-10-14: 2,341 OI2026-10-15: 2,397 OI2026-10-16: 2,424 OI2026-10-21: 2,462 OI2026-10-23: 2,436 OI Oct 02, 2026Oct 23, 2026

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

COHR contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing2,436-26
Oct 21, 20262,462+38
Oct 16, 20262,424+27
Oct 15, 20262,397+56
Oct 14, 20262,3410
Oct 13, 20262,341-7
Oct 09, 20262,348+134
Oct 08, 20262,2140
Oct 07, 20262,214+95
Oct 06, 20262,119+333
Oct 05, 20261,786-57
Oct 02, 20261,843No prior observation