The Top Market Moves for May 21

May 21 (Bloomberg) -- On today's "The Roundup," Alix Steel, Julie Hyman and Dominic Chu wrap up the day's top market stories on Bloomberg Television's "Street Smart." (Source: Bloomberg)

IBM's Rometty: Watson Will Power a New Driver Experience
08:44 - Ginni Rometty, IBM chair and chief executive officer, discusses the company's partnership with GM that is aimed at making cars smarter. She speaks with Bloomberg's Emily Chang on "Bloomberg Technology." (Source: Bloomberg)
  • IBM's Rometty: How Watson Stacks Up Against Competition
  • Why Investors Should Maintain Positions in Equities
  • Tesla's Profit: Is a SolarCity Deal More Likely?