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Lou Whiteman has no position in any of the stocks mentioned. The Motley Fool has positions in and recommends Mueller Industries and iShares Core S&P Small-Cap ETF. The Motley Fool has a disclosure policy.
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A small-cap index fund is an exchange-traded fund (ETF) that tracks a small-cap index, such as the Russell 2000. Small-cap companies typically have market caps between $300 million and $2 billion, and are often younger, faster-growing businesses.
These funds offer four key advantages: portfolio diversification across sectors, risk reduction through broad exposure, bull market outperformance relative to large caps, and attractive long-term growth potential, though with greater volatility during downturns.
If you want broad small-cap exposure, the four index funds below are strong options.
As its name implies, the iShares Russell 2000 Growth ETF aims to track Russell 2000 stocks that exhibit growth characteristics.
This ETF has performed well in bull markets but also falls faster when stocks are down. It is at its best when investors are putting money into smaller, more speculative companies. As the fund's name suggests, it is focused on growth: It aims to provide exposure to small companies with earnings expected to grow at an above-average rate relative to the market.
A growth-oriented fund such as the iShares Russell 2000 Growth ETF carries greater inherent risk, but it offers a reasonable expense ratio of 0.24% for investors seeking small-cap growth.
The Schwab U.S. Small-Cap ETF tracks the small-cap holdings of the Dow Jones U.S. Total Stock Market index. This is sort of a middle-of-the-road index fund ETF. It is neither overly conservative nor too aggressive with its holdings. Since it holds a mix of high- and low-risk stocks, its risk is lower than that of a purely growth-oriented fund. If you're a believer in diversification, this fund provides it.
A low expense ratio of 0.04% and a 10-year compound annual growth rate of more than 10.5% (including dividends) makes the ETF an appealing way to invest in domestic small caps. The fund also pays a dividend yielding about 1.26% of the share price as of Spring 2026.
The Vanguard Small-Cap Value Index Fund ETF tracks the CRSP U.S. Small Cap Value index. As a value-oriented index tracking fund, the ETF doesn't offer the highest share price growth potential, but it should outperform in bear markets. That's because valuations, especially of high-priced stocks, tend to compress in recessions.
Investors need to be clear about the trade-offs they are making when considering a value fund. This and other value-oriented investments tend to underperform when markets are soaring, but can provide valuable ballast when markets are under pressure.
Currently, the fund offers a dividend yield of about 2% and an attractive expense ratio of 0.05%.
There are some excellent reasons you might want to consider adding small-cap index funds to your portfolio:
On the other hand, there are some major risk factors and drawbacks to consider:
As you can see from the list above, small-cap investing doesn't have to be complicated. The four index fund ETFs offer a range of benefits, including growth, value, and income, and all have solid track records. With thousands of small-cap stocks available on the market, buying one of these is a smart and convenient way to reduce the risk of investing in the sector by gaining exposure to a wide range of companies with just one or two investments.



| Name and ticker | Market cap | Dividend yield | Industry |
|---|---|---|---|
| iShares Trust - iShares Russell 2000 Growth ETF (NYSEMKT:IWO) | $0.0 thousand | 0.00% | Capital Markets |
| iShares Core S&P Small-Cap ETF (NYSEMKT:IJR) | $0.0 thousand | 0.00% | Capital Markets |
| Schwab Strategic Trust - Schwab U.s. Small-Cap ETF (NYSEMKT:SCHA) | $0.0 thousand | 0.00% | Capital Markets |
| Vanguard Small-Cap Value ETF (NYSEMKT:VBR) | $0.0 thousand | 0.00% | Capital Markets |
The iShares Core S&P Small-Cap ETF, with $101 billion in assets, is the biggest small-cap index fund on the market. The fund seeks to track the S&P Small Cap 600 index by holding a broad array of stocks, including Mueller Industries (MLI +0.94%) and Comerica (NYSE:CMA).
Over the past decade, the index has generated an annual return of about 10.5% with dividends. It has an expense ratio of 0.06% and offers a dividend yield of about 1.3%.