Advanced Micro Devices, Inc. (NASDAQ:AMD) is leading the chip sector's charge today, last seen up 10.1% to trade at 113.28afterthecompany′sstrongsecond−quarterresults.Plus,reportsthatU.S.exportrestrictionsonChinawillbelessaggressivethanpreviouslyanticipatedareboostingsentiment. AMDisbouncingoffafamiliarflooratthe135 level, which also served a launching pad in January. Shares are on track for their highest single-day percentage jump since February, after a rally earlier thi ...