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Contract OI history

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Jan 21, 2028 EXPIRATION

COHR $290.00 Put

COHR280121P00290000

Latest saved OI121Oct 23, 2026
Last change0vs 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. 130650 2026-10-02: 130 OI2026-10-05: 129 OI2026-10-06: 120 OI2026-10-07: 119 OI2026-10-08: 119 OI2026-10-09: 120 OI2026-10-13: 121 OI2026-10-14: 121 OI2026-10-15: 121 OI2026-10-16: 121 OI2026-10-21: 121 OI2026-10-23: 121 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, 2026Viewing1210
Oct 21, 20261210
Oct 16, 20261210
Oct 15, 20261210
Oct 14, 20261210
Oct 13, 2026121+1
Oct 09, 2026120+1
Oct 08, 20261190
Oct 07, 2026119-1
Oct 06, 2026120-9
Oct 05, 2026129-1
Oct 02, 2026130No prior observation