Five Factors That Can Drive Us Small-Cap Earnings Growth

quote francis gannon

US small-caps have lagged in other areas of the equity market for much of the past several years as higher interest rates, rising costs, and narrow, mega-cap market leadership all worked to compress valuations and mute earnings visibility. This dynamic, however, is beginning to shift. Year-to-date 2025, US small-caps have outperformed large-caps, and since the market low on April 8, 2025, the Russell 2000 Index has risen more than 50%, outpacing the Russell 1000 Index, which gained around 40% over the same period.1 And while sentiment has improved, valuations remain discounted, and fundamentals are starting to turn.

One important driver is the interest-rate environment. US small-cap companies typically carry more leverage and have greater exposure to floating-rate debt than their large-cap peers. As financial conditions become less restrictive, interest expense tends to fall more quickly for smaller companies, leading to a disproportionate benefit to earnings. This pattern has been evident in prior easing cycles, when US small-cap earnings growth accelerated relative to large-caps, often before the improvement was fully reflected in consensus estimates.

Federal tax policy is also becoming more supportive. Provisions enacted in mid-2025 are improving after-tax cash flow for many domestically focused companies, particularly those without access to complex international tax structures. Incentives tied to capital investment and research and development support further reinvestment, productivity gains, and margin expansion—factors that tend to matter more for smaller companies, especially those that are earlier in their growth trajectories.

At the same time, the reshoring of supply chains should remain a durable structural trend. As manufacturers prioritize resilience and proximity over lowest-cost production, demand continues to shift toward domestic suppliers and specialized service providers. Many small-cap companies occupy compressed but critical positions in these ecosystems and directly benefit from incremental domestic investment, unlike multinational firms whose exposure is more diffuse.

Technology adoption is another supportive factor we think is not yet appreciated by the market. Most impactfully, artificial intelligence (AI) is no longer confined to large-cap platforms. For smaller companies with lean cost structures and high operating leverage, even incremental productivity gains can potentially have an outsized impact on margins, creating a pathway to earnings growth that does not rely solely on revenue acceleration, a distinction that may become increasingly relevant as the economic cycle matures.