DFAC applies Dimensional's factor-based approach to the entire U.S. stock market, systematically tilting toward smaller, cheaper, and more profitable companies while maintaining broad diversification. It's essentially a smarter version of total market exposure that aims to capture the premiums academic research has identified.
How It Works
The fund starts with market-cap weights across all U.S. stocks but then adjusts holdings based on company size, relative price, and profitability metrics. Unlike traditional index funds, it uses flexible implementation — trading patiently to minimize costs and adjusting weights gradually rather than on fixed rebalance dates. The portfolio holds thousands of stocks but overweights those with characteristics that research suggests drive higher expected returns.
Key Features
- Factor tilts without the concentration risk of traditional value or small-cap funds
- Patient trading approach reduces implementation costs compared to strict index rebalancing
- Captures multiple return premiums simultaneously rather than targeting just one factor
Risks
- Factor premiums can underperform for years — value stocks lagged growth by 30%+ in recent decade
- Small-cap tilt means higher volatility than S&P 500, potentially 15-20% worse in sharp selloffs
- Complex methodology makes it harder to predict tracking versus simple market-cap indexes
Who Should Own This
Best for investors who believe in factor investing but want to implement it through their core equity allocation rather than satellite positions. Works well as a complete U.S. stock replacement for those willing to accept tracking error versus the S&P 500 in exchange for potentially higher long-term returns. Requires patience — this is a 10+ year hold.