This paper provides a new method to disentangle the systematic component from the idiosyncratic part of the risk associated with trend following strategies. A simple statistical approach, combined with standard dimension reduction techniques, enables us to extract the common trending part in any...

This paper analyses the purchase and redemption behaviour of mutual fund investors and its implications on fund liquidity risk. We collect a novel set of proprietary data which contains a large number of French investors holding funds with various degrees of asset liquidity. We build a...

ETFs and index funds have grown at very rapid rates in recent years. Originally launched to track some large liquid indices in developed markets, they now also concern less liquid asset classes such as emerging market bonds. Illiquidity certainly affects the quality of the replication, and in...

The standard mean-variance approach can imply extreme weights in some assets in the optimal allocation and a lack of stability of this allocation over time. To improve the robustness of the portfolio allocation, but also to better control for the portfolio turnover and the sensitivity of the...

Is it really possible to control for the downside risk when the market environment is in constant evolution? If so, what would be the long-term growth prospects of such a strategy? We show in this article that when the dynamics of the variance and correlation terms are properly taken into...

Research in hedge fund investing proposes different solutions to build optimal hedge fund portfolios. However, these solutions are direct extensions of the usual meanvariance framework, and still suffer from model risks. More complex approaches start to be used but are related to numerous...