We give an explicit algorithm and source code for combining alpha streams via bounded regression. In practical applications, typically, there is insufficient history to compute a sample covariance matrix (SCM) for a large number of alphas. To compute alpha allocation weights, one then resorts to...

We reconsider the question of whether beta-centric hedge fund activity is predictive of superior performance. We construct a measure of overall beta activity of fund managers, Beta Activity, and find evidence that top beta active managers deliver superior long term out-of-sample performance...