← Capital Allocators – Inside the Institutional Investment Industry
Capital Allocators – Inside the Institutional Investment Industry
WTT: When the Benchmark Becomes a Bet
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Foreign. Throughout most of my career, The S&P 500 has been an appropriate bogey to assess manager performance. More than that, it's the most widely used benchmark in the capital markets. But today it doesn't represent the broad based, diversified exposure to the US Economy that most participants take for granted when investing passively or or measuring manager skill. This what Ted's thinking considers the evidence, implications, and challenges posed by the current composition of the S&P 500. When the benchmark becomes a bet Beating The S&P 500 is hard. The case for index funds seems more compelling than ever, and market share continues to rise. I often hear allocators discuss their preference for passive management in public markets and active management in private markets. It's become conventional wisdom that alpha has disappeared from public markets. But there's a problem. The S&P 500 no longer behaves like a neutral benchmark. Today it represents a concentrated exposure to a small number of companies. Investors who think they're buying diversified exposure to the US Economy are instead getting a concentrated bet on a handful of technology companies tied closely to the success of AI. Most investors understand this. Few know what to do about it. Governance structures make it difficult to shift focus away from the S and P as the benchmark for essentially every definition of alpha. Deviating from the index introduces career risk, even if sticking with it proves suboptimal. This tension sits at the heart of portfolio construction. It's worth revisiting the case for index funds to highlight this dilemma. The data increasingly indicates that active management is a loser's game. When Charlie Ellis wrote Winning the losers game in 1987, only 15% of actively managed funds outperformed the market. The 2024 Spiva Institutional Scorecard indicates active managers have gotten worse. Only 10% of all US equity funds outperformed the market over the last 3, 5, and 10 years, and only 6% over 20 years. The last 15 years have been especially challenging. More than half of active managers have beaten the index only twice in that stretch. And the degree of average annual underperformance by active managers appears to have reached a higher plateau in the last decade. That's a loser's game if I ever saw one. But something about these results doesn't add up. The degree of Recent S&P 500 outperformance hides an important first principle. It shouldn't be this hard. Like the croupier in a casino, the index should win, but only by a little. If the dealer won 90% of every blackjack hand dealt, no one would play. Something else is going on. So why is active management losing so badly? I can think of three explanations. First, costs, fees and transaction costs are a tax on active manager performance. This ever present reality is a headwind for active managers. 2. The paradox of Skill Michael Mauboussin refers to an irony that some games get harder to win when the skill of the players increases. As professional investors have gotten smarter and less sophisticated, investors have moved to index funds and it's harder for the pros to win. And three the index is winning. We think of an index fund as winning by not losing. But what if the index fund is just plain winning? Let's break down each first, costs are a toll paid by investors. The higher the cost, the larger the toll. Yet the cost of active management is lower than ever. According to Morningstar, the annual asset weighted average management fee paid to active managers fell from approximately 1% in 2000 to 60 basis points in 2024. Similarly, transaction costs are lower than ever, commissions are close to zero, and bid ask spreads are miniscule thanks to decimalization and high frequency trading. So shouldn't active managers be losing by less than they did in the past? Second, herds of intelligent, motivated, highly compensated professionals have flowed into the investment profession. Charlie Ellis cites the increase in CFA charterholders as a proxy for competition. For sure, active managers are better trained and have access to more information faster than ever before. As the theory goes, fund flows into index funds may have removed many unsophisticated investors from the market or leaving professional investors to duke it out for alpha. That theory leaps to a conclusion that ignores other effects of greater manager skill. If investors are better at security analysis, prices should fluctuate less and converge closer to intrinsic value. Yet the opposite has happened. Single stock volatility currently sits in the top 3% of its historical range. Sectors are also moving around more violently than in the past. Retail investors are often the driver of incremental stock price movement, as seen most prominently in meme stocks. If the professionals truly price securities and risk better, they should be able to exploit this volatility. The paradox of skill is a compelling narrative, but it is far from a definitive explanation for aggregate active manager underperformance. That leaves a third possibility. The S&P 500 has been winning precisely because of its active characteristics. Concentration in the S and P has been on the rise, with market leading companies dominating economic growth, profits and performance. We don't need to make a pejorative statement that The S&P 500 is too concentrated, carries excess risk, or is poised for a meltdown it's important instead to recognize the constitution of the index today and rethink what that means for portfolio construction and performance measurement. Rethinking Portfolio Construction throughout most of my career, The S&P 500 has been an appropriate bogey to assess manager performance. It's not today. Equity market exposure should provide broad based, diversified liquid exposure to economic growth. Today's S&P 500 ignores most sectors of the economy while favoring sectors that have been winning and and are highly exposed to the future of AI. If the S&P 500 is winning because of an implicit active bet, investors should think carefully before accepting the index as their passive exposure. There's nothing wrong with accepting this risk if it's intentional. Blindly using the S&P 500 to measure performance is also problematic. Almost every use of the word alpha pays little attention to the beta being used for comparison. Governance boards assess performance based on benchmarks, and The S&P 500 has long served as the implicit benchmark for just about everything. Shifting benchmarks is never a good look as it leaves an investor exposed to the perception of playing games to justify underperformance. But this is a rare instance where allocators and boards need to rethink their long held governance structure. David Swensen called diversification the only free lunch in investing in today's equity markets. Diversification no longer resides in the cap weighted S&P 500. Low cost passive investing is a great approach for many investors. Most of the time, the majority of active managers simply won't win. But unlike over the last decade, many active managers will win. Leading CIOs are thinking deeply about this problem. I've spoken to several who cite diversification as a rationale for active management in both public and private markets. That's something I've never heard before. Active management, defined broadly, can mean index, Fund selection factor, ETFs or the selection of an active manager. It's not, however, a default to the S&P 500. The rising tide of the S&P 500 may have peaked as the equal weighted S&P 500 bested the cap weighted by 7% in January and February, a gap not seen in 17 years. Investing from first principles calls for allocators to rethink their use of the S&P 500 index both as a passive vehicle and as a benchmark for success. Thanks for listening to the show. If you like what you heard, hop on our website@capitalallocators.com where you can access pass shows, join our mailing list and sign up for premium content. Have a good one and see you next time.