05/29/2026
It's tempting to invest with last year’s top-performing fund manager. After all, if they’ve outperformed the market, they must have a winning strategy, right? Unfortunately, the data tells us otherwise. Chasing performance is a common mistake that often proves costly for investors.
Why don't top managers remain on top? Returns are influenced by numerous factors, many beyond a manager’s control. Short-term success often stems from luck or favorable market conditions, not a repeatable skill. Even the most skilled managers can experience downturns when their investment style falls out of favor or markets shift.
Studies show that most funds in the top quartile fail to maintain their performance in subsequent periods. Market leadership rotates as different segments rise and fall. Dimensional Fund Advisors’ analysis underscores this unpredictability, showing how even the largest U.S. stocks frequently drop from top positions.
Instead of chasing past winners, focus on a disciplined investment process. Diversification across managers and asset classes helps mitigate risks. Costs also matter; high fees can erode potential gains. Research supports that broad diversification, low costs, and disciplined rebalancing are more reliable strategies than betting on the next big performer.
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