The Lottery of Stocks: Why Most Companies Destroy Wealth and What It Means for Every Investor

What if the common understanding of stock picking doesn’t reflect the full picture? Research by finance professor Hendrik Bessembinder points to a notable pattern: over the long term, overall stock market gains are largely driven by a relatively small number of high-performing companies, while many individual stocks deliver more modest returns—or may even underperform. This skew in returns invites a reassessment of concepts such as risk, diversification, and active management. Examining these findings may offer valuable perspective on how to approach portfolio construction and investment goals.

The Stark Reality of Stock Market Skewness

Hendrik Bessembinder's research reveals that long-term stock market returns are characterized by extreme positive skewness. In the U.S. from 1926-2018, only about 31% of individual stocks outperformed the market over their lifetimes, while roughly 58% delivered negative absolute returns. This skewness is even more pronounced in global markets due to higher volatility. The mechanism is simple: compounding short-term volatility, combined with limited liability (downside capped at -100%, upside uncapped), creates a distribution where a tiny fraction of stocks account for most gains. This phenomenon is a universal feature of competitive equity markets.

This dynamic makes the public stock market resemble venture capital. Most companies are losers or mediocre performers, while a handful of "100-baggers" create nearly all the wealth. Examples include Altria (tobacco), Apple, Microsoft, and Amazon, showing winners come from both steady "sin" stocks and high-growth tech.

Owning high-growth tech is exceptionally difficult because their paths are never smooth. Even the ultimate success stories experienced severe drawdowns—Amazon once fell roughly 91%. This volatility makes it nearly impossible for most investors to maintain a concentrated portfolio long enough to capture the full return.

When searching for predictable traits of future extreme winners, Bessembinder found only weak signals: younger age, higher prior asset growth, and higher R&D spending. He cautions these are almost statistically insignificant, emphasizing that identifying the next Amazon in advance is extraordinarily difficult. He also warns that the tech sector, while producing huge winners, contains even more total failures.

A crucial distinction exists between return outperformance and dollar-weighted wealth creation. While 31% of stocks beat the market, their aggregate dollar impact tells a more dramatic story. Roughly 57% of stocks destroyed net shareholder wealth. The next 39% created positive wealth, but only enough to offset the losses from the destroyers. The key finding is that the top 4% of companies—mega-winners like Altria and Apple—accounted for 100% of the net wealth creation in the market above T-bills. These few stocks provide all the "icing on the cake," meaning the entire market's excess return is driven by an exceptionally small group of outliers.

Implications for Diversification and Active Management

This skewness has profound implications for portfolio construction. Diversification reduces but does not eliminate the effect. While a single random stock had only a 4% chance of beating the market in simulations, a 100-stock random portfolio still underperformed the market about 57% of the time. This directly challenges active management: most funds underperform benchmarks before fees, with skewness being a larger drag on median performance than fees themselves.

Bessembinder acknowledges skilled managers exist, but identifying them in real time is exceptionally difficult due to a low signal-to-noise ratio. His work also highlights skewness preference as a key behavioral driver, explaining the appeal of lotteries, crypto, and concentrated bets. For most investors, the clear practical takeaway is the necessity of broad, low-cost diversification via indexing to reliably capture the market's positive mean return while mitigating single-stock risk.

For the vast majority of investors without a true comparative advantage in stock picking, Bessembinder’s findings are a powerful argument for broad diversification through indexing. Picking a few stocks at random heavily stacks the odds toward underperformance.

Finally, he clarifies a common misconception: portfolio rebalancing is primarily a tool to restore diversification and control risk, not a reliable method to enhance returns. Its success depends entirely on whether markets mean-revert.

Bessembinder acknowledges the difficulty of finding an edge and practices what he preaches as a diversified investor. A notable move was buying Phoenix rental properties in 2010 before corporate landlords moved into the space. For equity, he uses global dividend ETFs, seeking income and valuing non-US markets after a long period of US dominance. His research also confirms that the concentration of returns in a few stocks is even stronger in global markets.

Broader Research & Philosophical Shifts

A key insight is the flaw in common metrics. Traditional "buy-and-hold" return calculations assume dividend reinvestment, which doesn't reflect reality at an aggregate level. Bessembinder advocates for "shareholder wealth creation," a measure that accounts for dividends paid out, share issuances, and buybacks, giving a truer picture of how wealth is built or destroyed.

He also critiques traditional Jensen’s alpha as a single-period metric ill-suited for evaluating long-term, compounding returns. Beyond skewness of cross sectional return, Bessembinder's work in market microstructure and electricity markets (where derivatives theory breaks down due to non-storability) underscores his focus on real-world market complexities.

Most importantly, his recent work proposes a philosophical shift in performance measurement. He advocates moving beyond terminal wealth metrics to a "sustainable return" framework—the permanent withdrawal rate a portfolio can support while maintaining its capital. This aligns with the true goal of investing: funding consumption and other goals, not merely maximizing portfolio size. His definition of success mirrors this: having enough financial security to stop worrying about money, allowing balance with a fulfilling career and personal life.