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Contract OI history

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Dec 18, 2026 EXPIRATION

COHR $230.00 Call

COHR261218C00230000

Latest saved OI697Oct 23, 2026
Last change+199vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COHR $230.00 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. 6973480 2026-10-02: 3 OI2026-10-05: 3 OI2026-10-06: 3 OI2026-10-07: 3 OI2026-10-08: 3 OI2026-10-09: 3 OI2026-10-13: 4 OI2026-10-14: 4 OI2026-10-15: 4 OI2026-10-16: 28 OI2026-10-21: 498 OI2026-10-23: 697 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, 2026Viewing697+199
Oct 21, 2026498+470
Oct 16, 202628+24
Oct 15, 202640
Oct 14, 202640
Oct 13, 20264+1
Oct 09, 202630
Oct 08, 202630
Oct 07, 202630
Oct 06, 202630
Oct 05, 202630
Oct 02, 20263No prior observation