Wall Street ends higher to stem coronavirus selloff

NEW YORK (Reuters) - U.S. stocks managed to post gains on Thursday after recent steep losses as policymakers around the world took further emergency actions to try to help financial markets cope with deep coronavirus-driven economic damage.Nasdaq outperformed other major indexes, ending 2.3% higher, fuelled by gains in Amazon.com , Microsoft and Facebook .The Federal Reserve opened swap lines with central banks in nine new countries to ensure the world's dollar-dependent financial system..