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Contract OI history

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Dec 18, 2026 EXPIRATION

COHR $200.00 Put

COHR261218P00200000

Latest saved OI779Oct 23, 2026
Last change+44vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COHR $200.00 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. 7793890 2026-10-02: 117 OI2026-10-05: 117 OI2026-10-06: 119 OI2026-10-07: 121 OI2026-10-08: 121 OI2026-10-09: 132 OI2026-10-13: 150 OI2026-10-14: 150 OI2026-10-15: 151 OI2026-10-16: 227 OI2026-10-21: 735 OI2026-10-23: 779 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, 2026Viewing779+44
Oct 21, 2026735+508
Oct 16, 2026227+76
Oct 15, 2026151+1
Oct 14, 20261500
Oct 13, 2026150+18
Oct 09, 2026132+11
Oct 08, 20261210
Oct 07, 2026121+2
Oct 06, 2026119+2
Oct 05, 20261170
Oct 02, 2026117No prior observation