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Contract OI history

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Jun 17, 2027 EXPIRATION

COHR $300.00 Put

COHR270617P00300000

Latest saved OI327Oct 23, 2026
Last change+3vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COHR $300.00 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. 3271630 2026-10-02: 6 OI2026-10-05: 6 OI2026-10-06: 6 OI2026-10-07: 7 OI2026-10-08: 7 OI2026-10-09: 318 OI2026-10-13: 318 OI2026-10-14: 318 OI2026-10-15: 318 OI2026-10-16: 323 OI2026-10-21: 324 OI2026-10-23: 327 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, 2026Viewing327+3
Oct 21, 2026324+1
Oct 16, 2026323+5
Oct 15, 20263180
Oct 14, 20263180
Oct 13, 20263180
Oct 09, 2026318+311
Oct 08, 202670
Oct 07, 20267+1
Oct 06, 202660
Oct 05, 202660
Oct 02, 20266No prior observation