Zweig-DiMenna is among the longest-running of the flexible long/short investment managers. We are a premier non-traditional equity manager, with a primary focus on U.S. stocks. We utilize rigorous fundamental analysis and the identification of catalysts for change to select stocks. The portfolio is constructed from the bottom-up, and includes both growth and value stocks. Ours is a disciplined, yet opportunistic, approach to stock selection which focuses on companies with better than expected free cash flow. The emphasis on superior stock selection is complemented by risk management. The Fund invests primarily in natural resources stocks, including energy and basic industries and materials, and related groups. AUM is not disclosed.