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Contract OI history

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May 21, 2027 EXPIRATION

COHR $280.00 Call

COHR270521C00280000

Latest saved OI187Oct 23, 2026
Last change+20vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COHR $280.00 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. 187930 2026-10-02: 18 OI2026-10-05: 18 OI2026-10-06: 18 OI2026-10-07: 18 OI2026-10-08: 18 OI2026-10-09: 141 OI2026-10-13: 181 OI2026-10-14: 181 OI2026-10-15: 181 OI2026-10-16: 85 OI2026-10-21: 167 OI2026-10-23: 187 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, 2026Viewing187+20
Oct 21, 2026167+82
Oct 16, 202685-96
Oct 15, 20261810
Oct 14, 20261810
Oct 13, 2026181+40
Oct 09, 2026141+123
Oct 08, 2026180
Oct 07, 2026180
Oct 06, 2026180
Oct 05, 2026180
Oct 02, 202618No prior observation