Wall Street edges higher, pacing to fourth day of gains

The S&P 500 was on track for its best week since November, staging a strong rebound after its worst two-day decline in 10 months after Britain's shock vote last week to leave the European Union. The Dow Jones industrial average was up 18.97 points, or 0.11 percent, at 17,948.96, the S&P 500 had gained 2.98 points, or 0.14 percent, at 2,101.84 and the Nasdaq Composite added 14.28 points, or 0.29 percent, at 4,856.95. Six of the 10 major S&P sectors were higher, with the consumer discr