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Contract OI history

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Jun 17, 2027 EXPIRATION

COHR $290.00 Put

COHR270617P00290000

Latest saved OI20Oct 23, 2026
Last change-1vs 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. 21100 2026-10-02: 0 OI2026-10-05: 0 OI2026-10-06: 18 OI2026-10-07: 19 OI2026-10-08: 19 OI2026-10-09: 21 OI2026-10-13: 20 OI2026-10-14: 20 OI2026-10-15: 20 OI2026-10-16: 21 OI2026-10-21: 21 OI2026-10-23: 20 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, 2026Viewing20-1
Oct 21, 2026210
Oct 16, 202621+1
Oct 15, 2026200
Oct 14, 2026200
Oct 13, 202620-1
Oct 09, 202621+2
Oct 08, 2026190
Oct 07, 202619+1
Oct 06, 202618+18
Oct 05, 202600
Oct 02, 20260No prior observation