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Contract OI history

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Dec 18, 2026 EXPIRATION

COHR $300.00 Put

COHR261218P00300000

Latest saved OI551Oct 23, 2026
Last change+71vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COHR $300.00 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. 5512750 2026-10-02: 65 OI2026-10-05: 78 OI2026-10-06: 90 OI2026-10-07: 96 OI2026-10-08: 96 OI2026-10-09: 465 OI2026-10-13: 476 OI2026-10-14: 476 OI2026-10-15: 476 OI2026-10-16: 475 OI2026-10-21: 480 OI2026-10-23: 551 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, 2026Viewing551+71
Oct 21, 2026480+5
Oct 16, 2026475-1
Oct 15, 20264760
Oct 14, 20264760
Oct 13, 2026476+11
Oct 09, 2026465+369
Oct 08, 2026960
Oct 07, 202696+6
Oct 06, 202690+12
Oct 05, 202678+13
Oct 02, 202665No prior observation