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'So bad, it's good': History shows the market's smallest stocks may be poised for a rebound after record underperformance

Christine Ji

3 min read

A surprised trader on the floor of the New York Stock Exchange.

Seth Wenig/AP
  • Small-cap stocks look poised for a rebound this month after tariff-related losses.

  • Historically, June sees strong small-cap performance due to FTSE Russell index rebalancing.

  • Cheap valuations, potential rate cuts, and AI adoption could drive a small-cap resurgence.

Small-cap stocks were hammered in the aftermath of President Donald Trump's tariffs, but the stage looks set for a rebound this June.

The small-cap track record has been grim recently: the Russell 2000 has seen its worst streak of underperformance relative to the S&P 500 since the dot-com era, and this past May marked the sixth-worst year-to-date performance since 1990.

Small cap underperformance

Evercore ISI

Small caps, initially perceived as a clear winner of the Trump trade following the election, have emerged as the biggest losers of the trade war. With tariff concerns top-of-mind, investors are viewing small caps as "price takers, not price makers," extra vulnerable to inflation and supply chain disruptions, a note by Evercore ISI senior managing direction, Julian Emanuel, said.

But for the optimists, once you hit rock bottom, the only direction to go is up. In the eyes of Evercore, small caps have become "so bad, they're good."

June has historically been a strong month for small caps, as the FTSE Russell rebalances its indexes and adds or removes stocks based on market cap criteria. This leads to a surge of trading activity that can boost stock prices.

This effect is particularly prominent in the wake of outsized underperformance. In the five other instances of disappointing January to May performance, small caps exhibited strong seasonal reversion during the month of June, outperforming large caps by an average of 4.1%, Evercore said.

The firm believes the market has moved past the point of peak tariff uncertainty, which could further boost the sector's performance in June.

There are other catalysts for a small-cap resurgence as well. Amy Zhang, a portfolio manager at investment management firm Alger, pointed to cheap valuations and the potential for rate cuts.

Small caps have historically traded at a 27% premium relative to large caps due to their higher growth expectations, but on a forward-looking basis, the Russell 2000 is currently only trading at a 11% premium to the S&P 500. This allows investors to get exposure to small caps at a steep discount relative to history, especially as fundamentals and the overall economic environment improve.

Cheap valuations make small caps appealing takeover targets, and a pickup in M&A activity could help lift the group, Zhang told Business Insider. As large companies look to boost growth through acquisitions, smaller firms become prime candidates.