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Contract OI history

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May 21, 2027 EXPIRATION

COHR $310.00 Call

COHR270521C00310000

Latest saved OI44Oct 23, 2026
Last change+5vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COHR $310.00 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. 44220 2026-10-02: 13 OI2026-10-05: 12 OI2026-10-06: 12 OI2026-10-07: 35 OI2026-10-08: 35 OI2026-10-09: 35 OI2026-10-13: 35 OI2026-10-14: 35 OI2026-10-15: 35 OI2026-10-16: 35 OI2026-10-21: 39 OI2026-10-23: 44 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, 2026Viewing44+5
Oct 21, 202639+4
Oct 16, 2026350
Oct 15, 2026350
Oct 14, 2026350
Oct 13, 2026350
Oct 09, 2026350
Oct 08, 2026350
Oct 07, 202635+23
Oct 06, 2026120
Oct 05, 202612-1
Oct 02, 202613No prior observation