Wall Street opens higher ahead of Alibaba U. S. trade debut

(AGI) New York, Sept 19 - Wall Street opened slightly higher,ahead of an expected leap by Chinese e-commerce giant Alibabaon on its first day of U.S. trading. The Dow Jones rose 0.16percent to 17,293.16 points, the S&P 500 was up 0.12 percent to2,013.83 points and the Nasdaq rose 0.30 percent to 4,607.29points. . .