Traders work on the floor of the New York Stock ExchangeNEW YORK (Reuters) – The Dow and the S&P 500 index recorded new highs on Thursday after Janet Yellen, the U.S. Federal Reserve Chair nominee, told a Senate committee the Fed’s accommodative insurance policies would proceed so long as the economy continues to be fragile. According to the newest on hand data, the Dow Jones industrial average used to be up 54.seventy two factors, or zero.35 p.c, at 15,876.35. The Same old & Poor’s 500 Index used to be up eight.61 points, or zero.48 %, at 1,790.sixty one. The Nasdaq Composite Index used to be up 7.17 factors, or 0.18 p.c, at three,972.seventy four. (Reporting by Caroline Valetkevitch; Modifying by using Nick Zieminski)