Market Wrap: Wall Street Ends Down as Biotech Stocks Drop 4 …
APActors Robert Downey Jr. and Jeremy Renner ring the opening bell Monday at the New York Stock Exchange. By Caroline ValetkevitchNEW YORK – U.S. stocks ended down Monday, led by losses in biotech shares after disappointing news from several companies including Amgen.The Nasdaq Biotech Index sank 4.1 percent, its biggest daily percentage loss since March 25, while the S&P […]