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More Than Meets the Eye With Long-Short Equity Betas

Reported by Morningstar
Jul 28, 2015· 3 min read
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Key Takeaways
  • • Morningstar identifies approximately 150 long-short equity funds in its database, creating significant variability in strategy implementation despite a uniform category label that suggests straightforward long and short positioning.
  • • The average beta for long-short equity funds over the three-year period through May 31, 2015, is 0.51—approximately half the risk of the S&P 500—reflecting the category's stated objective to reduce market risk while capturing partial upside.
  • • Morningstar's classification criteria require long-short equity funds to maintain average betas between 0.3 and 0.8 over three years, yet this range masks substantial differences in underlying market sensitivity across individual funds.
  • • Beta analysis reveals the "flaw of averages" in long-short equity evaluation: focusing on category-level average beta obscures critical variability in how individual funds execute the strategy and their actual market exposure.
  • • The diversity of long-short approaches creates a complex selection landscape for institutional investors, requiring analysis beyond simple beta metrics to differentiate fund strategies and risk profiles.
Summary
The long-short equity category encompasses nearly 150 funds that ostensibly follow a straightforward mandate: combining long stock positions with smaller short sleeves designed to profit from anticipated price declines. However, Morningstar's analysis reveals that this apparent simplicity masks significant underlying complexity in strategy execution and market sensitivity.

Beta—a measure of fund sensitivity to benchmark market movements, typically the S&P 500 for equity-focused strategies—provides a useful lens for navigating this crowded category. As of May 31, 2015, the long-short equity category's trailing three-year average beta stood at 0.51, indicating that the average fund in this category exhibited approximately half the market risk of the S&P 500. This metric aligns with the category's stated objective: reducing equity market risk exposure while retaining a meaningful portion of upside potential through skilled manager selection and hedging discipline.

Yet the category average obscures critical variability in fund-level beta exposure. Morningstar's classification methodology requires long-short equity funds to maintain average betas between 0.3 and 0.8 over three-year measurement periods. This range represents the outer boundaries for category inclusion, but the distribution around this midpoint proves substantially more dispersed than the category average suggests. Some funds operate at the lower end of the spectrum with minimal market sensitivity, while others approach the 0.8 ceiling with substantially greater equity beta exposure.

This dispersion reflects fundamentally different approaches to the long-short mandate. Managers implementing market-neutral or lower-beta strategies prioritize capital preservation and consistent returns independent of market direction, while those at the higher end of the beta range accept greater market correlation in pursuit of enhanced returns during equity rallies. For institutional investors and family offices evaluating long-short allocations, this variability necessitates granular due diligence that extends well beyond category-level performance metrics or average beta calculations. Understanding each manager's specific beta profile, short positioning philosophy, and systematic versus discretionary approach becomes essential to matching fund selection with portfolio objectives and risk tolerance.

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Sources

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Morningstar More Than Meets the Eye With Long-Short Equity Betas