Tech stocks rallying to start the week on Wall Street after Tesla CEO Elon Musk bought a 9% stake in Twitter. Jefferies’ Brent Thill discusses whether Musk’s purchase could impact Twitter’s strategy. Former Federal Reserve Vice Chairman Roger Ferguson reacts to JPMorgan CEO Jamie Dimon’s warning that the Fed could hike rates more than Wall St. is expecting and whether the risk of a recession is rising. And Wells Fargo’s Mike Mayo explains why he is cutting his price target on Morgan Stanley & JP Morgan and the bank stock he thinks looks most attractive in a rising rate environment.