U.S. stocks ended sharply lower Monday as investors worried a $700 billion bailout for the financial sector may not resuscitate a slumping economy, while a record spike in oil prices renewed concern about consumer spending.

According to the latest available data, the Dow Jones industrial average was down 373.23 points, or 3.28 percent, to end unofficially at 11,015.21. The Standard & Poor's 500 Index was down 48.06 points, or 3.83 percent, to finish unofficially at 1,207.02. The Nasdaq Composite Index was down 94.92 points, or 4.17 percent, to close unofficially at 2,178.98.