Background introduction

　　By the end of November 2006, the asset managed by American common fund is accumulated to be 10.281 trillion USA dollars, which possess 53% of global fund market, equals to 84% of American GDP in 2005, which makes American keeping the largest financial organization system continuously. But in 1924, when the first common fund “Massachusetts investor trust” appeared in American, its investment scope is only fifty thousand US dollars.

　　After 80 years’ development, common funds have been owned by most families of USA. According to some materials, in 2006, there were 54.9 million USA families own common funds, which take the percentage of 48% of the country; and the number of common fund owner is 96 million, which means that one in three Americans are common funds owners. In financial structure of USA families, common funds take the leading position as high as 47%.