Semiconductor darling Nvidia Corp (NASDAQ:NVDA) was last seen up 4.2% at 140.51,afterthecompany′sbetter−than−expectedfirst−quarterearningsandrevenueresults.Thedatacenterdivision,whichincludesartificialintelligence(AI)chipsandrelatedparts,grew738 billion impact to revenue in the second quarter due to China's new export rules.Analysts chimed in with bull notes after the results. Summit Insights upgraded the stock to "buy" from "hol ...