Indexing Redefined, Part IV: Active Management vs. RAFI

• Median active managers underperformed by 247 basis points in narrow U.S. markets and 66 basis points in broad markets, with similar patterns in international and emerging markets
• RAFI's fundamental indexing breaks the link between stock price and portfolio weight by sizing holdings according to economic footprint, systematically trimming overpriced mega-caps while maintaining broad diversification
• The methodology combines passive benefits (low fees, transparency, tax efficiency) with active alpha generation through counter-cyclical rebalancing that buys low and sells high based on fundamental metrics

Summary: Indexing Redefined, Part IV - Active Management vs. RAFI

This final installment of the Indexing Redefined series examines solutions to concentrated equity markets, comparing traditional active management against fundamental indexing via the Research Affiliates Fundamental Index (RAFI).

Key Findings:

Market Concentration Problem:

Since the Global Financial Crisis, the S&P 500 has experienced unprecedented concentration, with a small group of technology mega-caps (FAANGs, Magnificent Seven) capturing disproportionate weight. Traditional market-cap indexing ties portfolio weights directly to stock prices, creating significant single-stock and sector concentration risks.

Active Management Myth Debunked:

Research Affiliates' multi-decade analysis reveals the median active manager underperforms benchmarks in both narrow and broad markets:

• U.S. markets: Lagged 247 bps in narrowing markets, 66 bps in broadening markets
• International markets: Trailed 58 bps (narrowing) and 75 bps (broadening)
• Key culprits: High fees, cash drag, and behavioral biases

Even perfect style timing fails to rescue active management performance.

RAFI Solution:

The RAFI methodology offers a systematic alternative by weighting companies based on economic footprint rather than market capitalization. This approach:

• Breaks the link between stock price and portfolio weight
• Automatically trims overpriced mega-caps while maintaining diversification
• Delivers low-cost passive benefits (transparency, tax efficiency, low turnover)
• Captures active alpha through counter-cyclical rebalancing (selling high, buying low)
• Consistently outperforms active managers by hundreds of basis points across U.S., international, and emerging markets

Bottom Line:

RAFI bridges passive efficiency with active return potential, offering investors a disciplined, rules-based framework that avoids concentration risks and high active management fees while systematically generating excess returns.