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Contract OI history

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Oct 30, 2026 EXPIRATION

COHR $215.00 Put

COHR261030P00215000

Latest saved OI334Oct 23, 2026
Last change+10vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COHR $215.00 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. 3341670 2026-10-02: 98 OI2026-10-05: 96 OI2026-10-06: 96 OI2026-10-07: 96 OI2026-10-08: 96 OI2026-10-09: 96 OI2026-10-13: 100 OI2026-10-14: 100 OI2026-10-15: 108 OI2026-10-16: 113 OI2026-10-21: 324 OI2026-10-23: 334 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, 2026Viewing334+10
Oct 21, 2026324+211
Oct 16, 2026113+5
Oct 15, 2026108+8
Oct 14, 20261000
Oct 13, 2026100+4
Oct 09, 2026960
Oct 08, 2026960
Oct 07, 2026960
Oct 06, 2026960
Oct 05, 202696-2
Oct 02, 202698No prior observation