Traders work on the floor of the New York Stock ExchangeBy using Caroline Valetkevitch NEW YORK (Reuters) – A selloff in rising markets sent a cold chill down Wall Street, triggering a slide on Friday and making January its worst month due to the fact May 2012 after one in all its perfect years in additional than a decade. For January, the Dow tumbled 5.three p.c and the S&P 500 slid 3.6 % – their worst month-to-month share declines due to the fact Could 2012. The Nasdaq ended the month down 1.7 p.c, its worst monthly proportion loss seeing that October 2012. For the S&P 500, this marked the first time that it ended January with a loss in view that 2010, when the benchmark index kicked off the 12 months with a drop of three.7 percent.