Correlation

Tactical Alpha in Theory and Practice (Part II): Principal Component Analysis

Nov 5, 2015

In Part I of this series, we explored Grinold’s Fundamental Law of Active Management, and why the theory leads to misguided conclusions in the presence of asset correlations. In this article we will offer a primer on a useful tool for portfolio evaluation, Principal Component Analysis (PCA), and illustrate how PCA can help quantify the number of independent bets in a portfolio of correlated assets.

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Measuring Tactical Alpha, Part 1

Dec 10, 2014

Grinold linked investment alpha and Information Ratio to the breadth of independent active bets in an investment universe with his Fundamental Law of Active Management. Breadth is often misinterpreted as the number of eligible securities in a manager’s investment universe, but this ignores the impact of correlation.

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Forget active vs. passive. It’s all about factors

Oct 1, 2014

We just love a good debate, and there seems to be quite a heated debate at the moment about the relative utility of passive versus active investing. Perhaps this debate is as timeless as investment management itself, but a flurry of recent studies may have finally armed passive advocates with enough ammunition to settle the argument once and for all.

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Cluster Shrinkage

Apr 8, 2014

In this article, we would like to integrate the cluster concepts we introduced in our article on Robust Risk Parity with some ideas proposed and explored by Varadi and Kapler in the last few months

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ReSolve Asset Management Blog is an investment research forum, opinion pieces, and educational material from the team at ReSolve Asset Management. Our views are driven by evidence based finance, with a special focus on asset allocation, factors and smart beta, retirement and endowment strategies, and quantitative methods.

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