Investors buy stock funds at fastest pace in a year By: MarketWatch October 31, 2014 at 12:06 PM EDT Inflows to U.S. mutual funds and exchange-traded funds are the biggest in 58 weeks. Read More >> Related Stocks: PowerShares QQQ S&P 500 Ishares Core ETF SPDR S&P 500 ETF Trust Standard & Poors 500