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Contract OI history

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Jan 19, 2029 EXPIRATION

COHR $420.00 Call

COHR290119C00420000

Latest saved OI131Oct 23, 2026
Last change+2vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COHR $420.00 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. 131650 2026-10-02: 127 OI2026-10-05: 127 OI2026-10-06: 130 OI2026-10-07: 130 OI2026-10-08: 130 OI2026-10-09: 129 OI2026-10-13: 129 OI2026-10-14: 129 OI2026-10-15: 129 OI2026-10-16: 129 OI2026-10-21: 129 OI2026-10-23: 131 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, 2026Viewing131+2
Oct 21, 20261290
Oct 16, 20261290
Oct 15, 20261290
Oct 14, 20261290
Oct 13, 20261290
Oct 09, 2026129-1
Oct 08, 20261300
Oct 07, 20261300
Oct 06, 2026130+3
Oct 05, 20261270
Oct 02, 2026127No prior observation