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Contract OI history

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Oct 30, 2026 EXPIRATION

COHR $225.00 Put

COHR261030P00225000

Latest saved OI543Oct 23, 2026
Last change+160vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COHR $225.00 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. 5432710 2026-10-02: 74 OI2026-10-05: 71 OI2026-10-06: 69 OI2026-10-07: 68 OI2026-10-08: 68 OI2026-10-09: 74 OI2026-10-13: 75 OI2026-10-14: 75 OI2026-10-15: 79 OI2026-10-16: 100 OI2026-10-21: 383 OI2026-10-23: 543 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, 2026Viewing543+160
Oct 21, 2026383+283
Oct 16, 2026100+21
Oct 15, 202679+4
Oct 14, 2026750
Oct 13, 202675+1
Oct 09, 202674+6
Oct 08, 2026680
Oct 07, 202668-1
Oct 06, 202669-2
Oct 05, 202671-3
Oct 02, 202674No prior observation