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Contract OI history

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Dec 18, 2026 EXPIRATION

COHR $175.00 Put

COHR261218P00175000

Latest saved OI40Oct 23, 2026
Last change+11vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COHR $175.00 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. 40200 2026-10-02: 7 OI2026-10-05: 7 OI2026-10-06: 7 OI2026-10-07: 13 OI2026-10-08: 13 OI2026-10-09: 13 OI2026-10-13: 14 OI2026-10-14: 14 OI2026-10-15: 14 OI2026-10-16: 14 OI2026-10-21: 29 OI2026-10-23: 40 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, 2026Viewing40+11
Oct 21, 202629+15
Oct 16, 2026140
Oct 15, 2026140
Oct 14, 2026140
Oct 13, 202614+1
Oct 09, 2026130
Oct 08, 2026130
Oct 07, 202613+6
Oct 06, 202670
Oct 05, 202670
Oct 02, 20267No prior observation