Risk Letter on Drawdown: From a risk measure to an asset allocation strategy

All investors want to maximize their portfolio’s returns while minimizing their risks. But how should you measure ‘risk’? Standard risk measures, such as Volatility or Value-at-Risk (VaR), provide only limited information about the risk your portfolio is exposed to. The most common measure, Volatility, has a number of drawbacks (which we wrote about in a previous Risk Letter [1]), but …

Risk Letter on Filtered Historical Simulations (FHS): How do you make your paths?

Filtered Historical

  A tail-focused asset path simulation technique An important feature of financial markets is that they are highly unpredictable. But despite market randomness, finance professionals spend considerable amounts of time and effort designing the best possible frameworks for reality. These frameworks, which help model and quantify the investment strategy, come in all shapes and sizes and are used in the …

Risk Letter 1 : Volatility as a risk measure

Risk Letter

Volatility is the most widespread measure of risk. The reason of its success comes from the fact that it is easy to understand (volatility, as anyone knows, represents the deviation of an asset return from its historical mean) and also easy to compute (one can calculate volatility with a built-­in formula in a spread sheet). Common belief is that the …

Risk Letter 2 : At the in-efficiency frontier

Risk Letter

This second Active Asset Allocation « Risk Letter » looks at the delicate question of the choice of hypotheses, using the example of the efficient frontier. It touches upon the influence of an incorrect choice on asset allocation decisions and their consequences. What do pension funds and institutional investors all have in common? They all start the investment process by …