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Contract OI history

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Jan 21, 2028 EXPIRATION

COHR $320.00 Call

COHR280121C00320000

Latest saved OI258Oct 23, 2026
Last change+12vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COHR $320.00 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. 2581290 2026-10-02: 133 OI2026-10-05: 135 OI2026-10-06: 135 OI2026-10-07: 136 OI2026-10-08: 136 OI2026-10-09: 236 OI2026-10-13: 236 OI2026-10-14: 236 OI2026-10-15: 236 OI2026-10-16: 237 OI2026-10-21: 246 OI2026-10-23: 258 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, 2026Viewing258+12
Oct 21, 2026246+9
Oct 16, 2026237+1
Oct 15, 20262360
Oct 14, 20262360
Oct 13, 20262360
Oct 09, 2026236+100
Oct 08, 20261360
Oct 07, 2026136+1
Oct 06, 20261350
Oct 05, 2026135+2
Oct 02, 2026133No prior observation