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Contract OI history

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Oct 23, 2026 EXPIRATION

COHR $290.00 Put

COHR261023P00290000

Latest saved OI10Oct 23, 2026
Last change-39vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COHR $290.00 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. 3201600 2026-10-02: 79 OI2026-10-05: 75 OI2026-10-06: 98 OI2026-10-07: 211 OI2026-10-08: 211 OI2026-10-09: 298 OI2026-10-13: 310 OI2026-10-14: 310 OI2026-10-15: 320 OI2026-10-16: 315 OI2026-10-21: 49 OI2026-10-23: 10 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, 2026Viewing10-39
Oct 21, 202649-266
Oct 16, 2026315-5
Oct 15, 2026320+10
Oct 14, 20263100
Oct 13, 2026310+12
Oct 09, 2026298+87
Oct 08, 20262110
Oct 07, 2026211+113
Oct 06, 202698+23
Oct 05, 202675-4
Oct 02, 202679No prior observation