Fung and Hsieh (2004) seven-factor model is extended to include an additional factor for the credit default swap (CDS) market. The idea is that because the importance of the CDS market is growing among investors, hedge funds as large institutional investors should have some exposure to these markets. After studying the relationships between different hedge fund types and the CDS market I come to a conclusion that those funds that are likely to use CDSs show negative exposure to the CDS market. These funds belong mainly to the fixed income category. Dedicated short bias funds, which are equity funds, are also likely to be affected by the CDS market. The study is organized as follows. In the first chapter there is the introduction, the second chapter is about the CDS instrument and the third chapter introduces the reader to hedge funds and topics around them. Chapter four presents the development of the seven-factor model and chapter five contains the empirical analysis including robustness check. Chapter six concludes the study.