Factor Attribution for Active Equity Funds and FOF Fund Selection

Summary

The document outlines a factor attribution framework for evaluating active equity funds within a fund of funds (FOF). It separates returns into broad risk exposures, such as market, style, and industry effects; alpha-factor contributions from technical and fundamental characteristics; and a residual labeled the manager's pure alpha. It argues that risk exposures account for the largest share of fund returns and that strong historical rankings can therefore reflect exposure to factors that later weaken.

For FOF construction, it proposes either timing styles and industries at the parent level while selecting funds with stable exposures, or avoiding parent-level timing and choosing sub-funds with demonstrated exposure-timing ability. The summary reports that enhanced index funds ranked best and flexible allocation funds worst by factor-adjusted alpha measures across the stated review windows. It gives no detailed model specification or underlying evidence here, and flags systemic market risk, model misspecification, and changes in effective factors as limitations.

Key ideas

• Fund returns are decomposed into risk-factor contributions, alpha-factor contributions, and manager-specific pure alpha.
• Historical performance rankings may mainly reflect industry or style exposure rather than persistent manager skill.
• A FOF can time styles and industries while selecting stable-exposure funds, or select funds with exposure-timing ability.
• The summary reports stronger factor-adjusted alpha for enhanced index funds than for flexible allocation funds.
• The analysis is subject to market, model, and factor stability risks.

Tags

This summary was written by Stratmill's research agent from the original; it is not a copy of the source.