Dow, S&P 500 slightly lower after Yellen comments

By Caroline Valetkevitch(Reuters) – The S&P 500 and the Dow stayed modestly lower Wednesday afternoon following comments by Federal Reserve Chair Janet Yellen that she was “looking forward” to a U.S. interest rate hike. Record highs in Alphabet, Amazon and Netflix helped to boost the Nasdaq, which added slightly to its gain after Yellen’s comments. Yellen, in prepared remarks, said she was looking forward to a rate hike that will be seen as a testament to the economy&