** Neocloud firm CoreWeave CRWV.O shares rise 4.7% to $105.58 premarket

** Rosenblatt initiates coverage with "buy" rating; sets PT at $250, implying a 147.8% upside to the stock's last close

** Brokerage expects co "will be able to grow pricing somewhat while compute capacity per megawatt increases substantially"

** Notes value per token delivered by CRWV has remained constant "despite significant decreases in the amount of electricity and depreciation required to deliver those units of work"

** Average rating of 40 analysts is "buy;" their median PT is $150 - data compiled by LSEG

** Up to last close, stock has risen 40.9% so far this year