Unwrapping the Good Things That Come in Small (Cap) Packages

The surge in small-cap stock performance in the final weeks of 2023 may signal a long-awaited turnaround for smaller companies that have lagged large-cap peers for a decade, according to Head of Global Index Portfolio Management Dina Ting. She analyzes the challenges small caps experienced in the past year and why she believes they now offer potentially attractive opportunities in 2024.

In the final weeks of 2023, stocks and bonds both rallied, and the rise in share prices of US small-capitalization companies—at long last—added to the holiday cheer. The small-cap Russell 2000 Index surged 12% in December (ending the year +15%) and outperformed larger caps (as measured by the S&P 500), which rose about 4.5% for the month.1 We believe the uptick may signal a turnaround for the small-cap space, following a rough decade during which smaller companies significantly trailed their large-cap peers by nearly 4% per year, on average.2

For much of last year, regional bank share prices slumped as investor sentiment for the segment soured due to the spring banking crisis and higher interest rates, and this disproportionately affected small caps. Given smaller companies’ relative reliance on shorter-term debt, they generally suffered from elevated borrowing costs more so than large caps did. Meanwhile, the rising artificial intelligence (AI) trend boosted tech giants, leading the S&P 500 to close out the year with a gain of more than 24%.

But the good news is that, in our analysis, small-cap valuations are now trading at an attractive discount to the S&P 500 and the Russell 1000. Prospects for a potential end to the rate-hike cycle, signs of cooling inflation and a robust labor market all provide tailwinds for small caps both in absolute and relative terms. Investors seeking to gain exposure to size-risk premium—the additional return expected by investing in small-cap stocks compared to large-cap stocks—can choose a higher allocation to funds focused on the small-cap segment. The small-cap stock premium (size effect) is one of the few effects that tends to find consensus support among researchers. The seminal academic findings of financial economists Eugene Fama and Kenneth French,3 based on decades of stock market history, showed that over time, companies with smaller market capitalizations had outperformed the overall market. The theoretical rationale that emerged was that of a size advantage, meaning smaller-cap companies—being more volatile or riskier—over longer periods also tended to better compensate investors for their additional risk. This is often also referred to as the size anomaly associated with factor investing.

While size-based strategies have been employed for decades since then, index provider MSCI notes in a paper on factor investing that only in recent years have transparent, rules-based indexes provided effective ways to expose portfolios to the size premium.4

Generally, the tendency for smaller companies to have longer runways for growth and greater flexibility during the business cycle can support the “size effect” premium.

Small Caps Attractively Valued Relative to Large Caps

Small Caps Attractively Valued Relative to Large Caps, FT