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Contract OI history

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Jan 15, 2027 EXPIRATION

COHR $420.00 Call

COHR270115C00420000

Latest saved OI631Oct 23, 2026
Last change+23vs 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. 6313150 2026-10-02: 561 OI2026-10-05: 571 OI2026-10-06: 575 OI2026-10-07: 574 OI2026-10-08: 574 OI2026-10-09: 586 OI2026-10-13: 599 OI2026-10-14: 599 OI2026-10-15: 599 OI2026-10-16: 605 OI2026-10-21: 608 OI2026-10-23: 631 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, 2026Viewing631+23
Oct 21, 2026608+3
Oct 16, 2026605+6
Oct 15, 20265990
Oct 14, 20265990
Oct 13, 2026599+13
Oct 09, 2026586+12
Oct 08, 20265740
Oct 07, 2026574-1
Oct 06, 2026575+4
Oct 05, 2026571+10
Oct 02, 2026561No prior observation