EUROPE'S PLAN: Many commodity prices increased after the European Central Bank said it will buy unlimited amounts of government bonds from countries struggling to manage their debts. The plan is designed to help ease the region's debt crisis and protect the euro currency.
GAINS, LOSSES: Prices rose for gold, platinum, oil, gasoline, wheat and corn. Natural gas, copper and soybeans fell.
WHAT'S NEXT: The next government report on the U.S. job market is due out on Friday. Traders are waiting to see how it may affect the prospect of additional economic stimulus measures from the Federal Reserve.