Wednesday

Stocks snapped a three-session losing streak as investors rode a boost in commodities prices to snap up shares of energy, materials and industrial companies. Leading the climb were stocks aligned to global growth. Caterpillar gained 1.7%, while DuPont added 1.8%, and Alcoa rose 1.4%. The gains came as precious metals and other commodities rose. Stocks spent much of the morning in negative territory after a weak economic reading and dispiriting results from some companies, but turned positive after credit-ratings firm Fitch Ratings said it doesn't foresee any ratings actions on German banks as a result of their exposure to Greece. DJIA +38.45 Nasdaq +15.22 S&P 500 +4.19.