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Contract OI history

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Nov 20, 2026 EXPIRATION

COHR $230.00 Put

COHR261120P00230000

Latest saved OI1,076Oct 23, 2026
Last change-37vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COHR $230.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,1135560 2026-10-02: 970 OI2026-10-05: 866 OI2026-10-06: 846 OI2026-10-07: 843 OI2026-10-08: 843 OI2026-10-09: 923 OI2026-10-13: 979 OI2026-10-14: 979 OI2026-10-15: 1,009 OI2026-10-16: 1,044 OI2026-10-21: 1,113 OI2026-10-23: 1,076 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, 2026Viewing1,076-37
Oct 21, 20261,113+69
Oct 16, 20261,044+35
Oct 15, 20261,009+30
Oct 14, 20269790
Oct 13, 2026979+56
Oct 09, 2026923+80
Oct 08, 20268430
Oct 07, 2026843-3
Oct 06, 2026846-20
Oct 05, 2026866-104
Oct 02, 2026970No prior observation