S&P 500 ETFs Battle 50-Day Moving Average

Equity bulls managed to hold the line this week at the 50-day moving average for the S&P 500 but they have their work cut out for them Friday on slowing economic growth in China and concerns over U.S. bank earnings. SPDR S&P 500 (NYSEArca: SPY), the largest ETF by assets, has bounced the...