We study the relation between hedge fund equity holdings and measures of informational efficiency of stock prices derived from intraday transactions, as well as daily data. Our findings support the role of hedge funds as arbitrageurs who reduce mispricing in the market. Hedge funds invest in...

Value at Risk (VaR) is defined as the worst expected loss under normal market conditions over a specific time interval at a given confidence level. Given the widespread usage of VaR, it becomes increasingly important to study the effects of the portfolio optimization subject to the VaR...

With $4.4 trillion of assets at end-2010, feared and courted by governments all over the world, characterized by low levels of transparency and often accused of hidden motivations, sovereign wealth funds (SWFs) are today among the most controversial players in global financial markets. SWFs are...

We examine the relation between changes in hedge fund stock holdings and measures of informational efficiency of equity prices derived from transactions data, and find that, on average, increased hedge fund ownership leads to significant improvements in the informational efficiency of equity...