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Contract OI history

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Sep 17, 2027 EXPIRATION

COHR $140.00 Put

COHR270917P00140000

Latest saved OI290Oct 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 $140.00 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. 2901450 2026-10-02: 3 OI2026-10-05: 3 OI2026-10-06: 4 OI2026-10-07: 14 OI2026-10-08: 14 OI2026-10-09: 52 OI2026-10-13: 52 OI2026-10-14: 52 OI2026-10-15: 209 OI2026-10-16: 287 OI2026-10-21: 290 OI2026-10-23: 290 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, 2026Viewing2900
Oct 21, 2026290+3
Oct 16, 2026287+78
Oct 15, 2026209+157
Oct 14, 2026520
Oct 13, 2026520
Oct 09, 202652+38
Oct 08, 2026140
Oct 07, 202614+10
Oct 06, 20264+1
Oct 05, 202630
Oct 02, 20263No prior observation