Facebook shares surged Monday, lifting the company's valuation above $1 trillion for the first time, after a US court dismissed a federal agency's antitrust complaint against the social media giant. Shares surged nearly five percent to $357.89 at about 1930 GMT after US District Judge James Boasberg concluded the Federal Trade Commission's case was "legally insufficient and must therefore be dismissed." Facebook shares had been in positive territory, but jumped further after the ruling was announced. The Nasdaq was on track to close at a record later Monday. jmb/sst