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Home > Asset Management Best Practice > When Form Follows Function: How Core–Satellite Investing Has Sparked an Era of Convergence

Asset Management Best Practice

When Form Follows Function: How Core–Satellite Investing Has Sparked an Era of Convergence

by Christopher Holt

Executive Summary

  • Core–satellite investing involves the separation of portfolios into a passively managed “core” (conforming to a strategic asset allocation framework) surrounded by actively managed “satellites” made up of active long-only funds and alternative investments.

  • While this structure yields operational benefits, it stops short of its full potential as a portfolio construction rubric since it deals only with superficial labels (asset classes). Instead, institutional investors are beginning to think in terms of alpha (skill-based) returns and beta (index-based) returns.

  • The separation of alpha and beta, regardless of their source, is a more accurate way to view core–satellite investing.

  • This bifurcation has recently led to major changes in the way some pension portfolios are managed and in the way that asset managers service their clients. Asset classes once treated as separate or distinct are now converging into one integrated alpha/beta paradigm.

  • Though challenges remain, there is little doubt that core–satellite investing has unleashed a wave of change that is reshaping asset management.

Introduction

“It is the pervading law of all things organic and inorganic…that form ever follows function.”

Nineteenth century Chicago architect Louis Sullivan famously observed that a building’s design must follow from its functional use. The same might be said about the design of modern portfolios and their management entities (pensions, endowments, asset managers, etc.). After emerging over the past decade as a simple portfolio management rubric, core–satellite investing is leading to a wholesale reengineering of the investment management function.

Core–satellite investing can generally be described as the separation of beta-centric (core) investing from alpha-centric (satellite) investing. However, the term has become stretched and overused. Today, “core” often refers to any number of passive asset classes and even to actively managed mandates. But a more literal definition of core as pure beta and satellite as pure alpha helps to shed light on one of the most significant underlying trends in asset management today—convergence.

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Further reading

Books:

  • Callin, Sabrina. Portable Alpha Theory and Practice: What Investors Really Need to Know. Hoboken, NJ: Wiley, 2008.
  • Dorsey, Alan H. Active Alpha: A Portfolio Approach to Selecting and Managing Alternative Investments. Hoboken, NJ: Wiley, 2007.

Reports:

  • Engstrom, Stefan, Richard Grottheim, Peter Norman, and Christian Ragnartz. “Alpha–beta-separation: From theory to practice.” Working paper. May 26, 2008. Online at: ssrn.com/abstract=1137673
  • Hubrich, Stefan. “An alpha unleashed: Optimal derivative portfolios for portable alpha strategies.” Working paper. January 8, 2008. Online at: ssrn.com/abstract=1015327
  • Miller, Ross M. “Measuring the true cost of active management by mutual funds.” Working paper. August 2005. Online at: ssrn.com/abstract=746926
  • Thomas, Lee R. “Engineering an alpha engine.” PIMCO, February 2004. Online at: tinyurl.com/6a4jt24 [PDF].

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