Wall Street up on optimism about economy

NEW YORK (Reuters) - Stocks rose on Friday, with growth-related shares leading the way as investors focused on a brighter U.S. economic outlook. Reversing a recent trend of trading in tandem with European stocks, U.S. equities were on track to post their best day this week. European shares fell 0.4 percent. U.S. financials , which have underperformed the S&P 500 this week, were the strongest of the 10 top sectors in the benchmark index, up 1.2 percent. Credit card company Discover Financial added 4.4 percent to $24.08 a day after posting strong results and raising its dividend. ...