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Contract OI history

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Jan 21, 2028 EXPIRATION

COHR $620.00 Call

COHR280121C00620000

Latest saved OI327Oct 23, 2026
Last change+1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COHR $620.00 call 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: 322 OI2026-10-05: 322 OI2026-10-06: 322 OI2026-10-07: 322 OI2026-10-08: 322 OI2026-10-09: 326 OI2026-10-13: 326 OI2026-10-14: 326 OI2026-10-15: 326 OI2026-10-16: 326 OI2026-10-21: 326 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+1
Oct 21, 20263260
Oct 16, 20263260
Oct 15, 20263260
Oct 14, 20263260
Oct 13, 20263260
Oct 09, 2026326+4
Oct 08, 20263220
Oct 07, 20263220
Oct 06, 20263220
Oct 05, 20263220
Oct 02, 2026322No prior observation