Electronic Arts rises after media reports of take-private deal

** Shares of videogame maker Electronic Arts EA rose over 14% to $192.6

** Company is in advanced talks to go private at roughly $50 billion valuation, according to a source familiar with the matter

** Group of investors, including private-equity firm Silver Lake and Saudi Arabia's Public Investment Fund, could unveil a deal as soon as next week

** Fifteen of 31 brokerages rate the stock "buy" or higher, 16 "hold"; their median PT is $171, according to data compiled by LSEG

** As of last close, shares of EA up 15% year to date