Wall Street extends gains on robust manufacturing data

The S&P 500 and the Dow were on track for their best weekly gains since October, recovering sharply from a bruising selloff after Britain voted to quit the European Union. Data from the Institute for Supply Management (ISM) showed its index of national factory activity rose to 53.2, topping expectations of 51.4, according to a Reuters poll. "It's been a wild ride, but positive economic momentum in the United States has and continues to be a ray of sunshine," said Daniel Kern, chief investmen