Some companies execute a 3-5 year plan and then revert to average returns. Others 'win by winning'—their success creates new opportunities and network effects, turning them into decade-long compounders that investors often sell too early.

The quality of public small-cap companies, measured by Return on Invested Capital (ROIC), has plummeted from 7.5% to 3% over 30 years. This degradation means high-growth opportunities now predominantly exist in the later-stage private markets. Institutional investors must shift their asset allocation to venture and growth equity, which has become "the big leagues," not a bespoke asset class.

Historically, small-cap companies grew earnings faster than large-caps, earning a valuation premium. Since the pandemic, this has flipped. Large-caps have seen astronomical earnings growth while small-caps have lagged, creating a rare valuation discount and a potential mean reversion opportunity for investors.

The asymmetrical nature of stock returns, driven by power laws, means a handful of massive winners can more than compensate for numerous losers, even if half your investments fail. This is due to convex compounding, where upside is unlimited but downside is capped at 100%.

The smooth exponential curve of compounding is a myth. In reality, it occurs in a world of shocks and uncertainty. True long-term compounding isn't just about picking winners; it's the result of having a robust process that allows you to survive the inevitable randomness and volatility along the way.

Contrary to belief, small-cap investing doesn't have to be excessively volatile. By focusing on quality and portfolio construction, a portfolio of ~80 small-cap names can achieve a historical volatility of 10-13%, less than half that of the Russell 2000 index (25-30%), while remaining fully invested.

Financial models struggle to project sustained high growth rates (>30% YoY). Analysts naturally revert to the mean, causing them to undervalue companies that defy this and maintain high growth for years, creating an opportunity for investors who spot this persistence.

Extraordinary long-term investment returns often come from seemingly boring, overlooked companies. Eddie Elfenbein points to examples like Lancaster Colony (croutons) and Nathan's Famous (hot dogs), whose stocks have crushed the market over decades. This highlights the power of consistent, high-quality businesses that don't attract speculative hype.

The effort to consistently make small, correct short-term trades is immense and error-prone. A better strategy is focusing on finding a few exceptional businesses that compound value at high rates for years, effectively doing the hard work on your behalf.