** Shares of medical device maker Cooper Companies COO.O fall 14.6% to $63.30 premarket
** Company late on Wednesday lowered its annual revenue forecast to between $4.07 billion and $4.10 billion, from $4.11 billion to $4.15 billion earlier
** Expects Q4 revenue to be between $1.05 billion and $1.07 billion, below analysts' estimate of $1.10 billion - data compiled by LSEG
** "We think it's prudent to remain on the sidelines until we can see more concrete signs of stabilization," says J.P.Morgan
** Up to last close, shares down 19.4% YTD
(Reporting by Siddhi Mahatole)
((siddhi.mahatole@thomsonreuters.com))