** Shares of bitcoin miner CleanSpark CLSK.O fall 2% to $11.58 premarket
** H.C. Wainwright cuts PT on CLSK to $27 from $30, trims FY26 revenue estimate
** Cites slower ramp in CLSK's hash rate and lower average BTC prices for the year than forecast
** Hash rate refers to the computational power used to solve crypto puzzles; slower ramp reduces company's ability to solve the blocks faster
** Brokerage reiterates "buy" rating
** Twelve of 13 brokerages rate the stock "buy" or higher and one "hold"; median PT is $25 - data compiled by LSEG
** Shares up 28.34% YTD, up to last close
(Reporting by Utkarsh Tushar Hathi)
((utkarshtushar.hathi@thomsonreuters.com))