Wall Street showed more signs of stability after Washington’s latest lifeline to the auto industry.

Shares rose after President Bush announced government loans for G.M. and Chrysler, but then gave back most of their gains, ending mixed.

Shares rose after President Bush announced an infusion of government money for G.M. and Chrysler, but were trading flat at midday. Meanwhile, oil prices slid below $35 a barrel.

Stocks rose in early trading minutes after President Bush announced plans to shore up the auto industry with an infusion of government money.

Stocks moved sharply lower as investors were so desperate to put their cash into government notes that they were willing to pay a penalty: three-month notes traded at a negative yield.

Shares were modestly lower, breaking a two-day winning streak, amid weak earnings reports and speculation about the form of a government bailout for the nation’s automakers.

Wall Street extended a global rally amid redoubled efforts to try to revive the economy, including signs that the government will bail out Detroit’s troubled automakers.

Wall Street extended a global rally amid redoubled efforts to try to revive the economy, including signs that the government will bail out Detroit’s troubled automakers.

Investors welcomed a presidential pledge for broad infrastructure spending and a suggestion that the government will bail out Detroit’s troubled automakers.

U.S. stocks rose after shares in Europe and Asia were lifted by the latest government efforts to bolster economic growth.