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Contract OI history

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Dec 18, 2026 EXPIRATION

COHR $180.00 Put

COHR261218P00180000

Latest saved OI133Oct 23, 2026
Last change+6vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COHR $180.00 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. 133660 2026-10-02: 5 OI2026-10-05: 6 OI2026-10-06: 6 OI2026-10-07: 6 OI2026-10-08: 6 OI2026-10-09: 10 OI2026-10-13: 11 OI2026-10-14: 11 OI2026-10-15: 12 OI2026-10-16: 29 OI2026-10-21: 127 OI2026-10-23: 133 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, 2026Viewing133+6
Oct 21, 2026127+98
Oct 16, 202629+17
Oct 15, 202612+1
Oct 14, 2026110
Oct 13, 202611+1
Oct 09, 202610+4
Oct 08, 202660
Oct 07, 202660
Oct 06, 202660
Oct 05, 20266+1
Oct 02, 20265No prior observation