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Contract OI history

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Jan 15, 2027 EXPIRATION

COHR $145.00 Put

COHR270115P00145000

Latest saved OI228Oct 23, 2026
Last change+46vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COHR $145.00 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. 2281140 2026-10-02: 63 OI2026-10-05: 64 OI2026-10-06: 64 OI2026-10-07: 64 OI2026-10-08: 64 OI2026-10-09: 64 OI2026-10-13: 182 OI2026-10-14: 182 OI2026-10-15: 182 OI2026-10-16: 182 OI2026-10-21: 182 OI2026-10-23: 228 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, 2026Viewing228+46
Oct 21, 20261820
Oct 16, 20261820
Oct 15, 20261820
Oct 14, 20261820
Oct 13, 2026182+118
Oct 09, 2026640
Oct 08, 2026640
Oct 07, 2026640
Oct 06, 2026640
Oct 05, 202664+1
Oct 02, 202663No prior observation