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Small Caps, Big Concentration: What Q1 2026 Told Us About the Russell 2000

Return concentration in the Russell 2000 was heavily skewed toward energy:

  • Energy outperformed the index by nearly 37%, standing out as the clear driver of performance.
  • Materials, the second-best sector, lagged far behind with just +5.2% relative outperformance.
  • Perhaps most notably, the top 50 stocks accounted for 447% of the total index return. A small subset of names did not just lead the market; they effectively defined it.

What does this mean?

  • These dynamics highlight limited breadth in small cap performance during the quarter and reinforce the importance of sector exposure and stock selection for investors.
  • Passive exposure may not have delivered the typical experience investors expect.

Quality Factors Led During 1Q26 Despite a Soft March

Source: Furey Research Partners, FactSet; Russell 2000 Index as of 3/31/26.

Narrow Market Performance in 1Q26

Energy outperformed by almost 37%!

It was the fourth best relative performance by a top sector in any quarter since 1985

Source: Furey Research Partners, FactSet; as of 3/31/26.

Russell 2000 Return Concentration

Top 50 stocks amounted to more than 400% of the Russell 2000 Index 1Q26 total return

Source: Furey Research Partners, FactSet; as of 3/31/2026.

For more small caps observations click here.

Disclosures

The opinions expressed herein are those of Aristotle Capital Boston (Aristotle Boston) and are subject to change without notice. This material is not financial advice or an offer to purchase or sell any product. Aristotle Boston reserves the right to modify its current investment strategies and techniques based on changing market dynamics or client needs.

All investments carry a certain degree of risk, including the possible loss of principal. Investments are also subject to political, market, currency and regulatory risks or economic developments. International investments involve special risks that may in particular cause a loss in principal, including currency fluctuation, lower liquidity, different accounting methods and economic and political systems, and higher transaction costs. These risks typically are greater in emerging markets. Securities of small- and medium-sized companies tend to have a shorter history of operations, be more volatile and less liquid. Value stocks can perform differently from the market as a whole and other types of stocks. The material is provided for informational and/or educational purposes only and is not intended to be and should not be construed as investment, legal or tax advice and/or a legal opinion. Investors should consult their financial and tax adviser before making investments. The opinions referenced are as of the date of publication, may be modified due to changes in the market or economic conditions, and may not necessarily come to pass. Information and data presented has been developed internally and/or obtained from sources believed to be reliable. Aristotle Boston does not guarantee the accuracy, adequacy or completeness of such information.

Past performance is not indicative of future results. The information provided in this report should not be considered financial advice or a recommendation to purchase or sell any particular security.

Differing historical time periods are selected throughout the presentation as we believe specific periods provide the most informative historical analog for the concepts presented.

The Russell 2000® Index measures the performance of the small cap segment of the U.S. equity universe. The Russell 2000 Index is a subset of the Russell 3000® Index representing approximately 10% of the total market capitalization of that index. It includes approximately 2000 of the smallest securities based on a combination of their market cap and current index membership. The volatility (beta) of the portfolios may be greater or less than the benchmark. It is not possible to invest directly in this index.

Aristotle Capital Boston, LLC is an independent investment adviser registered under the Investment Advisers Act of 1940, as amended. Registration does not imply a certain level of skill or training. More information about Aristotle Boston, including our investment strategies, fees and objectives, can be found in Form ADV Part 2, which is available upon request. ACB-2605-11

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