Mutual fund

  • 详情 The Dark Side of Institutional Shareholders Activism in Emerging Markets: Evidence from China’s Non-Tradable Share Reform
    The study aims to analyze the role of institutional investors in mediating the interest conflicts between blockholders and minority shareholders in emerging markets. China’s Non-tradable Share Reform provides us a perfect research environment. Before the reform, the ownership of Chinese public firms was concentrated in one or several blockholders. This part of block shares was non-tradable, and tradable shares were held by minority shareholders and institutional investors like mutual funds. Chinese government launched Non-tradable Share Reform in 2005, giving non-tradable shares liquidity rights. At the same time, non-tradable share owners had to compensate tradable share owners, such as offering a certain percentage of shares to them. The compensation schemes were advanced by non-tradable share owners and must be supported by two-thirds of votes cast by tradable share owners. Our study finds that institutional investors did actively participate in voting, but their number and holdings were reversely related with the compensation level. Our results suggest that institutional investors played shareholder activism in this reform, but their activism served for blockholder’s interests rather than minority shareholders’.
  • 详情 MPS Risk Aversion and Continuous Time MV Analysis in Precence of Levy Jumps
    This paper studies sequential portfolio choices by MPS-risk-averse investors in a continuous time jump-diffusion framework. It is shown that the optimal trading strategies for MPS risk averse investors, if they exist, must be located on a so-called `temporal efficient frontier' (t.e.f.). The t.e.f. is found not to coincide with the local instantaneous frontier --- the continuous time analogue of Markowitz's mean-variance frontier. This observation is potentially useful in understanding the existence of documented financial anormally in empirical finance --- MPS risk averse investors may not wish to invest along the local instantaneous Markowitz's mean-variance frontier, but instead hold portfolios on the t.e.f.. The optimal portfolio on the t.e.f. could well fall strictly within the instantaneous local Markowitz's efficient frontier. Our observations on mutual fund separation are also profound and interesting. In contrast to the classical two-fund separation along the line of Black (1972) and Tobin (1958), our study shows that MPS-risk-averse investors' optimal trading strategy is target rate specific. Precisely, investors with different target rates may end up investing into different managed mutual funds, each involving a specific set of separating portfolios. Our theoretic findings are, nevertheless, much in line with the real world phenomena on the existence of various types of mutual funds offered by different financial institutes, each aiming to attract demand from some specific groups of investors --- a picture that is in sharp contrast to the theoretical prediction made by Black (1972) and Tobin (1958). Finally, our study sheds light on the difference between expected utility and MPS-risk-averse investors concerning their trading behavior in sequential time frame. Even though these two groups of investors may end up holding a common risky portfolio in each spot market, the differences between their trading behaviors are most reflected through the portfolio weights assigned to each of the separating portfolios within the time frame and across states. Precisely, the portfolio weights corresponding to investors respectively from the two groups are associated with recognizable different time patterns. We showed that such difference in trading behavior would be also reflected from the time patterns of the instantaneous returns and the volatilities of the funds respectively managed by investors from these two groups.
  • 详情 Do Mutual Funds Time the Market? Evidence from Portfolio Holdings
    Existing literature has found no evidence of market-timing ability by mutual funds using tests based on fund returns. This paper proposes alternative market-timing tests based on observed fund holdings. The holdings-based measures are shown to be more powerful than the return-based measures, and are not subject to "articial timing" bias. Applying the holdings-based tests, we nd strong evidence of mutual fund timing ability. Our findings also suggest that market-timing funds tend to have higher returns and trade more actively. Furthermore, they seem to have market-timing information beyond those common return-predictive economic variables documented in the academic studies. Finally, we quantify the potential economic value of market-timing as a contingent claim. The magnitude of the estimated values indicates that market-timing is potentially an important investment strategy deserving more academic attention.