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Contract OI history

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Nov 20, 2026 EXPIRATION

COHR $320.00 Call

COHR261120C00320000

Latest saved OI739Oct 23, 2026
Last change+10vs 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. 7393690 2026-10-02: 382 OI2026-10-05: 370 OI2026-10-06: 361 OI2026-10-07: 404 OI2026-10-08: 404 OI2026-10-09: 368 OI2026-10-13: 611 OI2026-10-14: 611 OI2026-10-15: 672 OI2026-10-16: 686 OI2026-10-21: 729 OI2026-10-23: 739 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, 2026Viewing739+10
Oct 21, 2026729+43
Oct 16, 2026686+14
Oct 15, 2026672+61
Oct 14, 20266110
Oct 13, 2026611+243
Oct 09, 2026368-36
Oct 08, 20264040
Oct 07, 2026404+43
Oct 06, 2026361-9
Oct 05, 2026370-12
Oct 02, 2026382No prior observation