S&P 500 ends near flat; retailers fly for a second day

Traders work on the floor of the New York Stock ExchangeBy Caroline Valetkevitch NEW YORK (Reuters) – Stocks finished flat on Wednesday with investors hesitant to make a big move on the day before comments from Federal Reserve Chair Janet Yellen, though retailers' shares rallied on results for a second day. Target Corp and Lowe's Cos Inc shares jumped following upbeat earnings and gave the biggest boosts to the S&P 500.