A rally on Wall Street gained momentum late Wednesday as investors welcomed more upbeat housing data and a second day of dovish testimony from the chairman of the Federal Reserve. The Dow Jones industrial average rallied 175 points, or 1.2%, to end at its highest level since October 2007. The S&P 500 jumped 1.3% Traders said the rally was a continuation of Tuesday's advance, which came after Fed chairman Ben Bernanke signaled to lawmakers that the central bank's easy money policies would remain in force. Bernanke reiterated his argument Wednesday that the Fed's bond-buying program, known as QE, has helped the ... (full story)