WisdomTree
equity-blog-header.jpg

U.S. Small Caps: Lurking Vulnerabilities

Published December 21, 2018

Matt Wagner, CFA
Matt Wagner, CFA

Director, Research

The Federal Reserve (Fed) released its inaugural financial stability report on November 28. In the report, the Fed highlighted two of the main vulnerabilities in the financial system1:

1. Elevated asset valuations

2. Historically high corporate leverage accompanied by a lowering of credit standards

We touched on both risks over the course of this year, in How to Avoid Leverage Risks in Small Caps and How to Manage Valuation Risk in U.S. Equities.

Coming into the year, elevated equity valuations in the U.S. were a major concern. At such high valuations, forward return estimates had become increasingly unattractive.

As a result of the December 2017 corporate tax reform, which bolstered profit growth in 2018, as well as the negative returns for U.S. equities thus far, valuations have become much more modest. This point was also conceded by the Fed in their report.

While there seems to have been improvement on vulnerability number one, the second point has been a vulnerability we have been closely watching, particularly as it relates to small caps.

Zombie Companies

Only time will tell the ultimate impacts of the Fed’s extraordinary easy money policies, which were initiated in the aftermath of the financial crisis. Amid the longest bull market in history, many investors would say the Fed has done an exceptional job.

A legitimate lingering concern, however, is the significant build-up in debt among U.S. corporations. Just as the monetary stimulus was intended to do, corporations have tapped the capital markets for cheap debt financing while rates have been at historically low levels.

Of utmost importance for equity investors is the ability of these corporations to repay their obligations. The increasing attention on identifying firms unable to pay debt servicing costs has resulted in a name for this distained class of profligate companies: zombies.

In the chart below, we plot the percentage of the constituents of the S&P 500 Index and the Russell 2000 Index that are classified as zombie companies. We define zombies as those with current trailing 12-month interest expenses that exceed the average of the past three years of earnings before interest and taxes (EBIT).

While the number of companies in the S&P 500 that have insufficient profits to cover their interest expenses is a negligible 2%, nearly 25% of Russell 2000 constituents have unsustainable debt burdens. This level of zombie companies is near an all-time high for the Russell index.

Percentage of Zombie Companies

percentage-of-zombie-companies.gif

Different Measures of U.S. Small Caps

The Russell 2000 Index is one of the broadest indexes of small-cap stocks. As a by-product of its inclusivity, it has about 21% of its weight in companies with negative earnings.

The WisdomTree U.S. SmallCap Earnings Index is similarly broad, currently containing 811 constituents. The one major differentiator from the Russell 2000 universe is the requirement of positive core earnings over the four quarters prior to the Index’s annual reconstitution each December.

The WisdomTree U.S. SmallCap Quality Dividend Growth Index is a more selective cut of small caps, containing 272 constituents. The Index screens for companies with attractive growth and profitability characteristics on an annual basis, also in December.

By slicing the universe of U.S. small caps in these different ways, the fundamental exposures that result for these Indexes are considerably different from the Russell 2000. The WisdomTree U.S. SmallCap Quality Dividend Growth Index offers an interest-coverage ratio of over twice that of the Russell 2000, while at a significant valuation discount based on price-to-earnings.

Typically, investors would be required to pay a significant premium to own more stable, quality companies. Uniquely for both the WisdomTree Indexes, higher quality metrics are offered at a significant discount to the Russell 2000.

russell-2000-vs-wtsei-vs-wtsdg.gif

Unless otherwise noted, all data from WisdomTree, FactSet as of November 30, 2018.

1https://www.federalreserve.gov/publications/files/financial-stability-report-201811.pdf

About the contributor

Matt Wagner, CFA
Matt Wagner, CFA

Director, Research

Matt Wagner joined WisdomTree in May 2017 as an Analyst on the Research team. He currently serves as a Director, where he supports the creation, maintenance, and reconstitution of WisdomTree’s indexes and actively managed ETFs. Matt began his career at Morgan Stanley, working as an analyst in Treasury Capital Markets from 2015 to 2017, focusing on unsecured funding planning, execution, and risk management. He graduated magna cum laude from Boston College in 2015 with a B.A. in International Studies, concentrating in Economics. In 2020, he earned a Certificate in Advanced Valuation from NYU Stern. He is also a Chartered Financial Analyst (CFA) charterholder.

GO PAPERLESS

Contact your broker to sign up for eDelivery of WisdomTree ETF documents.

Investors should carefully consider the investment objectives, risks, charges and expenses of the Funds before investing. U.S. investors only: To obtain a prospectus containing this and other important information, please call 866.909.9473, or click here to view or download a prospectus online. Read the prospectus carefully before you invest. There are risks involved with investing, including the possible loss of principal. Past performance does not guarantee future results.

You cannot invest directly in an index.

Foreign investing involves currency, political and economic risk. Funds focusing on a single country, sector and/or funds that emphasize investments in smaller companies may experience greater price volatility. Investments in emerging markets, real estate, currency, fixed income and alternative investments include additional risks. Due to the investment strategy of certain Funds, they may make higher capital gain distributions than other ETFs. Please see prospectus for discussion of risks.

WisdomTree Funds are distributed by Foreside Fund Services, LLC, in the U.S.

© 2026 WisdomTree, Inc. All Rights Reserved.