News Summary: Stocks fall in quiet end to month

News Summary: Stocks fall at end of volatile month but still up big for half-year

FLITTING PRICES: Stocks ended lower after flitting between tiny gains and losses most of Friday as investors weighed statements from Federal Reserve officials about when the central bank might end its support for the economy.

BUMPY MONTH: The Dow closed down 114.89 points, the 16th triple-digit move this month. That makes it the most volatile month since September 2011, at least by this measure.

BIG LOSER: BlackBerry maker Research In Motion plunged 28 percent after posting a surprise loss in the first quarter and warned of future losses despite releasing its new line of smartphones this year.