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Contract OI history

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Mar 19, 2027 EXPIRATION

COHR $170.00 Put

COHR270319P00170000

Latest saved OI75Oct 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 $170.00 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. 75370 2026-10-02: 41 OI2026-10-05: 41 OI2026-10-06: 41 OI2026-10-07: 44 OI2026-10-08: 44 OI2026-10-09: 48 OI2026-10-13: 56 OI2026-10-14: 56 OI2026-10-15: 56 OI2026-10-16: 57 OI2026-10-21: 64 OI2026-10-23: 75 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, 2026Viewing75+11
Oct 21, 202664+7
Oct 16, 202657+1
Oct 15, 2026560
Oct 14, 2026560
Oct 13, 202656+8
Oct 09, 202648+4
Oct 08, 2026440
Oct 07, 202644+3
Oct 06, 2026410
Oct 05, 2026410
Oct 02, 202641No prior observation