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Contract OI history

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Nov 20, 2026 EXPIRATION

COHR $290.00 Put

COHR261120P00290000

Latest saved OI843Oct 23, 2026
Last change-17vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COHR $290.00 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. 8604300 2026-10-02: 678 OI2026-10-05: 683 OI2026-10-06: 687 OI2026-10-07: 793 OI2026-10-08: 793 OI2026-10-09: 842 OI2026-10-13: 842 OI2026-10-14: 842 OI2026-10-15: 840 OI2026-10-16: 833 OI2026-10-21: 860 OI2026-10-23: 843 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, 2026Viewing843-17
Oct 21, 2026860+27
Oct 16, 2026833-7
Oct 15, 2026840-2
Oct 14, 20268420
Oct 13, 20268420
Oct 09, 2026842+49
Oct 08, 20267930
Oct 07, 2026793+106
Oct 06, 2026687+4
Oct 05, 2026683+5
Oct 02, 2026678No prior observation