US STOCKS-Wall St ends down on Greece, China worries
* Utilities, healthcare stocks close lower
* Oil prices climb for third straight session
* Indexes down: Dow 0.53 pct, S&P 0.42 pct, Nasdaq 0.39 pct (Updates to close, adds comment)
By Sinead Carew
NEW YORK, Feb 9 (Reuters) - U.S. stocks fell on Monday as investors worried about Greek debt negotiations and disappointing Chinese economic data on top of uncertainty about U.S. interest rates.
After the market's strong week last week, nine out of ten S&P sectors finished down Monday, with healthcare and utilities the worst performers. Only energy finished up slightly, boosted by rising oil prices.
"I think it's just general nervousness about Greece," said Rick Fier, director of trading at Conifer Securities in New York. "When earnings are over, then it becomes a geopolitical type scenario."
Greece's Prime Minister Alexis Tsipras ruled out any extension of its international bailout on Sunday and announced moves to reverse some of the reforms imposed by its lenders. National Bank of Greece's U.S.-listed shares fell 7.4 percent to $1.12.
China's exports fell 3.3 percent from a year ago while imports tumbled 19.9 percent, far worse than expectations. Continuación...