U.S. stocks advanced Thursday after better-than-expected results from Morgan Stanley (NYSE: MS) as investors looked ahead to a second day of testimony from Federal Reserve Chairman Ben Bernanke before Congress. Investment bank giant Morgan Stanley saw second-quarter results jumped to 45 cents per share, above analysts' expectations. Net revenue came in at $8.32 billion, topping expectations for $7.89 billion.As of 10:35 a.m. Eastern, the Dow Jones industrial average jumped 77.78 points or 0.5 percent, to 15,548.3, the S&P 500 rose 8.07 points or 0.48 percent, to 1,688.98 and the Nasdaq Composite was up 6.27 points or 0.17 percent, to 3,616.27.