Provided by Dow Jones By Anna Hirtenstein and Paul Vigna U.S. stocks jumped in afternoon trading Thursday as investors cheered encouraging data on the economy, a strong batch of corporate earnings and the prospect of as much as $1.8 trillion in new government spending. The Dow Jones Industrial Average gained 0.7%, and the S&P 500 added 0.6%. The Nasdaq Composite climbed 0.2%. Those gains would put the S&P 500 at a fresh record. Stocks rose early, but then fell into the red as bond yields jumped, repeating the recent pattern of intraday swings. Such volatility isn't unusual given the market's current state, said Katerina Simonetti, senior vice president at Morgan Stanley Private Wealth Management.