U.S. stocks rallied on Friday, rounding out a big end to the week, while bond yields retreated slightly from their recent march. At the close, the S&P 500 (^GSPC) surged 1.6%, while the Dow Jones Industrial Average (^DJI) increased 1.1%. Contracts on the technology-heavy Nasdaq Composite (^IXIC) jumped nearly 2%. […]