Wall Street edges higher after 4-day rally
This is the biggest four-day rally for S&P 500 since January 2013
 "Wall Street edges higher after 4-day rally")
US stocks opened slightly higher on Wednesday, with buyers largely taking a pause following the biggest four-day rally for the S&P 500 since January 2013.
The Dow Jones industrial average rose 13.48 points, or 0.08 percent, to 16,628.29, the S&P 500 gained 2.46 points, or 0.13 percent, to 1,943.74 and the Nasdaq Composite added 5.82 points, or 0.13 percent, to 4,425.30.