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Contract OI history

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Jan 21, 2028 EXPIRATION

COHR $340.00 Call

COHR280121C00340000

Latest saved OI170Oct 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 $340.00 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. 171850 2026-10-02: 100 OI2026-10-05: 103 OI2026-10-06: 101 OI2026-10-07: 101 OI2026-10-08: 101 OI2026-10-09: 163 OI2026-10-13: 163 OI2026-10-14: 163 OI2026-10-15: 168 OI2026-10-16: 168 OI2026-10-21: 171 OI2026-10-23: 170 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, 2026Viewing170-1
Oct 21, 2026171+3
Oct 16, 20261680
Oct 15, 2026168+5
Oct 14, 20261630
Oct 13, 20261630
Oct 09, 2026163+62
Oct 08, 20261010
Oct 07, 20261010
Oct 06, 2026101-2
Oct 05, 2026103+3
Oct 02, 2026100No prior observation