Wall St ends flat

U.S. stocks closed narrowly mixed in volatile trading overnight, as investors took breather following last week's sharp rally amid concerns over when Federal Reserve would curb its stimulus program.
Dow Jones Industrial Average index fell 9.53 points to close at 15,238.59.
S&P 500 index ended at 1,642.81. Among key S&P sectors, telecom shares led the gainers, while industrials stocks lagged.
Nasdaq composite gained 4.55 points at 3,473.77.