Chasing the market’s hottest performers often leads to the worst long-term investment outcomes due to mean reversion and the hidden costs of scale.
The Cycle of the Golden Boy
From time to time, a seemingly brilliant fund manager emerges, professing to have the unique wisdom required to navigate a rapidly changing world. They prove their clairvoyance with astronomical returns, which trigger explosive growth as new investors rush in to benefit from this perceived infinite wisdom. Seeing those around you pour money into a hot fund can make a disciplined, diversified strategy feel like a failure. If your portfolio returned 10 percent while a star manager earned 200 percent, the temptation to pivot is visceral. Yet, the phenomenon of the star manager—complete with media adoration and powerful narratives—is a story that rarely ends well for the investor.
History is littered with these 'Golden Boys.' In the 1960s, Gerald Tsai Jr. was celebrated for his ability to time the market in high-flying stocks like Polaroid and Xerox. After years of market-beating returns at Fidelity, he launched the Manhattan Fund in 1966, raising a record-breaking $247 million. The fund faltered almost immediately; an investor who stayed from the beginning would have lost 70 percent over eight years. Similarly, Fred Carr’s Enterprise Fund returned 117 percent in 1967, attracting over a billion dollars by 1969. Most of those dollars arrived late to the party, only to see the fund lose 25 percent in consecutive years before Carr’s departure.
The High Price of Innovation
By the late 1990s, the narrative shifted to the internet boom. Managers like Garrett Von Wagoner and Ryan Jacob became the new faces of the technological paradigm. Von Wagoner delivered a staggering 291 percent return in 1999, attracting half a billion dollars in new capital. However, the subsequent years were brutal: the fund lost 21 percent in 2000, 60 percent in 2001, and 64 percent in 2002. An investor who entered after the big 1999 run-up would have seen $100,000 shrink to just $9,000 by 2008. These managers weren't necessarily incompetent; they were simply unable to escape the fundamental realities of asset pricing.
The central problem is that as great as a company may be, paying too high a price for that greatness inevitably results in poor returns. Innovative companies in growing industries tend to be large and expensive. While the Nasdaq 100 is filled with category-defining names like Apple and Tesla, it has historically struggled to keep pace with less glamorous sectors. From 1999 to 2020, the MSCI US Small Cap Value Index—filled with companies that transform animal byproducts into gelatin—actually outperformed the Nasdaq 100. Expected returns come from the price you pay for future profits, not from the level of hype surrounding a company’s mission.
The Performance Chasing Trap
The tendency to hire managers after a period of outperformance is not limited to retail investors; even sophisticated pension plan sponsors fall into this trap. A 2008 study in the Journal of Finance found that plan sponsors typically hire investment managers after three years of large positive excess returns. These newly hired managers frequently fail to continue that streak, leading to their termination and replacement by the next manager with a hot three-year track record. This cycle of performance chasing systematically destroys value.
Further research in the Journal of Portfolio Management compared 'winner' strategies (investing in top-decile funds) against 'loser' strategies (investing in bottom-decile funds). Surprisingly, the 'loser' strategy exceeded the 'winner' strategy by 2.28 percent per year. This mean-reverting behavior suggests that much of what we perceive as managerial skill is actually luck. In landmark papers, researchers like Mark Carhart and Eugene Fama have found that the vast majority of managers do not possess enough skill to deliver returns in excess of the risks they take. When a manager beats the benchmark, they are more likely to be lucky than skilled, and luck eventually runs out.
The Paradox of Scale
Even when a manager is genuinely skilled, investors may still fail to capture the benefits due to 'decreasing returns to scale.' As a fund’s assets grow, it becomes increasingly difficult to execute the same strategy that led to the initial success. Research indicates that for an average fund, doubling its size in a single year can drop its alpha by roughly 20 basis points. Large funds face higher transaction costs and a smaller pool of stocks that can meaningfully impact their performance. The very act of rewarding a skilled manager with more capital makes it harder for that manager to continue beating the market.
In a rational market, capital flows to skilled managers until the fund reaches a size where the expected excess return for the investor is zero. In this model, the manager captures the economic gains of their skill through increased fees, while the investors merely earn a return commensurate with the risk they are taking. Much like a high share price reflects a company’s future prospects and lowers the expected return for new buyers, massive capital inflows into a fund act as an equilibrating mechanism that neutralizes the manager's edge. When a fund appears to be a 'sure thing,' it has likely already grown too large to remain one.
The Reality of the Best Performing Funds
The historical and empirical evidence leads to a sobering conclusion: the best-performing funds of the recent past are frequently the worst investments for the future. Whether it is due to the mean reversion of lucky but unskilled managers, or the erosion of an edge through the sheer weight of new capital, the 'star' status of a fund is often a contrarian indicator. Investors who arrive after the enticing performance numbers have already been posted are usually the ones who pay for the inevitable decline.
Successful investing requires the discipline to ignore the siren song of astronomical short-term returns. It requires understanding that paying a low price for an 'okay' company is often a better strategy than paying a premium for the best company in the world. While the narratives of star managers are compelling, they rarely survive the cold reality of asset pricing and the paradox of scale. In the end, the most boring, diversified strategy is often the one that actually delivers the results investors are looking for.