Wall St ends lower

U.S. stocks began the week with losses, with all three major averages posting their worst 1-day performance this year, amid concerns over Europe.
Dow Jones Industrial Average closed 129.71 points, or 0.93 per cent lower at 13,880.08,
S&P 500 index lost 17.46 points, or 1.15 percent, to end at 1,495.71.
Nasdaq composite fell 47.93 points, or 1.51 per cent to 3,131.17.
All key S&P sectors finished in negative territory, led by financials and techs.