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Contract OI history

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Dec 18, 2026 EXPIRATION

COHR $210.00 Put

COHR261218P00210000

Latest saved OI1,008Oct 23, 2026
Last change+266vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COHR $210.00 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. 1,0085040 2026-10-02: 53 OI2026-10-05: 49 OI2026-10-06: 52 OI2026-10-07: 68 OI2026-10-08: 68 OI2026-10-09: 74 OI2026-10-13: 101 OI2026-10-14: 101 OI2026-10-15: 109 OI2026-10-16: 122 OI2026-10-21: 742 OI2026-10-23: 1,008 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, 2026Viewing1,008+266
Oct 21, 2026742+620
Oct 16, 2026122+13
Oct 15, 2026109+8
Oct 14, 20261010
Oct 13, 2026101+27
Oct 09, 202674+6
Oct 08, 2026680
Oct 07, 202668+16
Oct 06, 202652+3
Oct 05, 202649-4
Oct 02, 202653No prior observation