Wal-Mart strong earnings boost Wall Street

Wall Street shot higher today, lifting the Dow Jones industrials nearly 320 points after reassuring news from Goldman Sachs Group Inc. and Wal-Mart Stores Inc. quelled some of the market’s worst fears about the credit crisis and the economy. A plunge in the price of oil gave investors further incentive to buy.

Goldman Sachs heartened investors with word that it didn’t expect a significant hit from the subprime mortgage turmoil. Goldman Chief Executive Lloyd Blankfein, speaking at a conference held by Merrill Lynch & Co., said the bank has a short position in the subprime mortgage market and won’t be taking any significant charges to write off losses.