Wall Street gets a lift from Facebook, corporate M&A

Strong results from Facebook and a flurry of dealmaking helped U.S. stocks pare early losses caused by a surprising decision by the Bank of Japan to hold off from expanding monetary stimulus. Facebook jumped as much as 10.9 percent to a record of $120.79, a day after the company reported a 50 percent rise in revenue. The stock provided the biggest boost to the S&P 500 and the Nasdaq.