6. FIDELITY INDEPENDENCE FUND ( FDFFX) Return: 17.8%. Assets: $4.1 billion Manager: Robert Bertelson, since November 2006 Top stocks:Apple ( AAPL) , 5.1%, Delta Airlines ( DAL), 3.5%, Google ( GOOG), 3.4% Big winner:Bayerishche Motoren Werke, the German automaker, comprises 1.2% of fund and has doubled this year. Strategy: The diverse portfolio has 120 stocks, and the top 10 make up 27% of the portfolio. Industrial materials is the largest sector bet, at 20%, followed by computer hardware, at 16%. Portfolio turnover is high at 173%. Performance has been volatile as it lost 48% in 2008, then rebounded in 2009 with 40%. It has won big on its fourth-largest holding, at 2.8% of the fund, airline United Continental ( UAL), up 115% this year. After that, most stocks in the top 25 are less than 2% allocations, indicating lots of small bets.