U.S. stocks closed sharply lower Friday as investors weighed concerns over the implications of the Federal Reserve’s decision to keep short-term interest rates unchanged.  “The signaling by the Fed yesterday, (that it) doesn’t see confidence to pull the trigger to raise from zero to 25 basis points, I think is negative sentiment that’s hitting the market,” said Art Hogan, chief market strategist at Wunderlich Securities.

Analysts also noted Friday trading would likely see more volatility due to quadruple witching, the expiration of three related classes of options and futures contracts, as well as individual stock futures options. The Dow Jones industrial average and S&P 500 closed down more than 1.5 percent, mildly negative for the week. The Nasdaq composite was off about 1.4 percent on the day and eked out a 0.1 percent gain for the week. FULL REPORT