Summary Box: Prospects of improving economy give boost to commodities, led by grains

Summary Box: Grains lead broad commodities rally

GAINS FOR GRAINS: — Grains led a broad commodities rally as traders grew more confident about prospects for the economy. Prices recovered much of what was lost Monday when investors sold off riskier assets because of worries about Goldman Sachs facing accusations of fraud.

MARKET’S IMPACT: Commodities benefited across the board as a series of improved earnings reports gave the stock market a boost.

PUMPED UP: Oil prices ended a two-week slump to settle up more than 2 percent amid last-minute trading on the final day of the May contract.