Abstract This study examines the performance of forty UK unit trusts over a period of five years from September 2002 to August 2008. The performance of these trusts is examined in terms of their selectivity abilities and timing abilities. The study employs Sharpe ratio, Treynor ratio and Jensen's measure to analyze the selectivity abilities of trusts. Similarly the Henriksson & Merton model and the Treynor and Mazuy model are employed to determine the market timing abilities of these trusts. Moreover, the performance of UK unit trusts is compared to that of index funds, which represent the FTSE market indices. The results of this study indicate that UK unit trusts are unable to outperform index funds on a risk-adjusted basis. Furthermore, ...