after Federal Reserve Chairman Alan Greenspan raised concerns that the FOMC might adopt a neutral stance as soon as March 19. The Dow Jones Industrial Average closed down 48.92 points or 0.46% at 10,525.37, after having traded in a range of 10,468.64-10,606.88. The S&P 500 closed down 5.23 points or 0.45% at 1,157.53 and the Nasdaq Composite dropped 8.77 points or 0.46%.