Shares of Koss Corp KOSS.O and GameStop GME.N dropped between 2% and 5%. By Medha Singh and Shashank Nayar June 4 (Reuters) - U.S. stocks rose on Friday, with technology shares leading the way, as weaker-than-expected jobs growth eased concerns about the economy running too hot and causing an early tightening of monetary policy. Worries that a robust economic rebound could lead to a prolonged period of inflation and prompt the Fed to contemplate paring back its crisis level support have weighed on investors' minds recently.