ABSTRACT
From the 2006, our securities market has developed fast,with the end of five
years’ bearish,either the open-ended fund,which assume geometric growth.The
quantity of issuing open-ended fund was record high, the styles in its bills are
multiplicity,but, whether we analyse the portfolio or the actual performance of fund net
value,the open-ended fund in China has investment convergence dramatically, the fund
was always different from the styles its bills set,the styles of fund diversion distinctly.
First, the article introduces the phenomenon of open-ended fund investment
diversion, discusses all kinds of theory the investment styles come into being, and
summarizes research of fund styles in the world.The article alse introduces the
development of fund styles in China and the America. The article shows the theory
foundation of investment style from the modern portfolio theory and defines the
investment style. It presents two methods to confirm fund style: the Holding Based
style analysis (HBS) and Return Based style analysis (RBS).
The chapter four is the key point .The article selects 18 distinct styles of
open-ended fund to do empirical analysis by using the Holding Based style analysis
and Return Based style analysis. In the use of HBS, the paper analyzed the coincidence
degree of sample fund portfolios with the top holdings and industry、net value and the
market index correlation with the broader market changes and so on. In use of Sharpe
model –the RBS analysis, this article tested sample fund in two intervals frome 2005 to
2008. Empirical tests show that the open-ended fund violation the contract prospectus
decleared investment style , there is convergence of investment styles.In the stocks
market goes up, the open-ended fund investment styles are mostly growth style, in the
stock market is bear ,most fund transfore for the value style.
The chapter five is not only the key point but also the innovation, the paper use
regression model to quantify the reasons of why the convergence of China’s fund
investment styles. The model’ factors include China’s government intervention in the
stock market ( growth rate of GDP 、the amount of volume in M2 、CPI index ), and
the fund industry’s institutional shortcomings ( the performance rating of fund
managers、
the pressure of fund managers ) and so on . The regression model shows that