Stocks surged into the Labor Day-shortened trading week Tuesday, as bulls swept in to support a broad-based rally. The Nasdaq rocked ahead 1.8%, the Dow Jones industrial average powered up 1.6% and the S&P 500 tagged a 1.5% gain in early action. Volume rose 11% on both exchanges, relative to Friday’s early trading levels. Stocks soared out of the starting gates, but the stock market today remains in correction mode.