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Contract OI history

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Dec 17, 2027 EXPIRATION

COHR $200.00 Put

COHR271217P00200000

Latest saved OI680Oct 23, 2026
Last change-3vs 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. 6833410 2026-10-02: 308 OI2026-10-05: 308 OI2026-10-06: 308 OI2026-10-07: 308 OI2026-10-08: 308 OI2026-10-09: 307 OI2026-10-13: 308 OI2026-10-14: 308 OI2026-10-15: 309 OI2026-10-16: 679 OI2026-10-21: 683 OI2026-10-23: 680 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, 2026Viewing680-3
Oct 21, 2026683+4
Oct 16, 2026679+370
Oct 15, 2026309+1
Oct 14, 20263080
Oct 13, 2026308+1
Oct 09, 2026307-1
Oct 08, 20263080
Oct 07, 20263080
Oct 06, 20263080
Oct 05, 20263080
Oct 02, 2026308No prior observation