Best Small-Cap Stocks to Watch in September 2026 | Free AAII List

CACC , CRC , MCY , PEB

Small-cap value stocks are shares of smaller companies trading below what their fundamentals suggest they’re worth. These companies get less analyst coverage and less investor attention than large caps. That gap creates more room for mispricing, and more opportunity for investors willing to dig in.

The tradeoff is risk. Small caps tend to be more volatile and less financially established than larger, more mature companies.

This guide covers:

• What small-cap value stocks are, and how they differ from small-cap growth stocks
• The benefits of small-cap value investing, including lower valuations and less competition from institutional investors
• Red flags to watch for when evaluating a small-cap company
• How to spot strong small-cap value opportunities using metrics like price-to-book ratio, debt levels, and earnings consistency

AAII’s September 2026 Small-Cap Value Stock List highlights companies that met these criteria this month, based on financial analysis, not market hype. A few examples from this month’s list:

• Mercury General Corporation (MCY): a 93 Value Score paired with a 95 Growth Score, a combination of low valuation and strong growth that’s hard to find
• Quanex Building Products Corporation (NX): top grades across Value, Momentum, and Growth

These are just three of the companies on this month’s list. We’ll walk through the same approach used to evaluate them: weighing valuation against quality, growth, and momentum, not valuation alone.

Complete the form below to access the full list. But first, let’s cover the fundamentals of small-cap value investing.

What Are Small-Cap Stocks?

Small-cap stocks refer to shares of companies with a relatively small market capitalization, typically between $300 million to $2 billion.

Small-cap investing involves buying these stocks, often viewed as a way to tap into the growth potential of emerging businesses that might become significant players in their industries.

Investors who include small-cap stocks in their portfolios are usually people looking for higher growth opportunities at a good value, as these companies can experience rapid expansion. However, small caps can be riskier and more volatile than larger companies, making them appealing to risk-tolerant investors or those with a far-off investment horizon.

By diversifying a portfolio with small-cap stocks, investors aim to capitalize on the potential for substantial returns while accepting the accompanying risks.

Small-Cap Stock Sector Overview

Small-cap stocks are often found in sectors where new companies are looking to grow — like technology, health care, consumer goods and industrials — but they are found in all sectors.

Diversifying across different industries and sectors is important to reduce risk since different industries react differently to market changes. When choosing small-cap stocks, think about your interests and investment goals. Look for companies with strong performance and growth potential.

At AAII, we teach the importance of diversification. Balancing small-cap sector investments with larger stocks can help create a well-rounded portfolio, offering both growth opportunities and more stability.

Pros and Cons of Investing in Small-Cap Stocks

Investing in small-cap stocks can be highly rewarding, offering unique opportunities for investors looking for growth potential. However, like any type of investment, it also presents some risks that investors should carefully weigh. Below are the key advantages and disadvantages, as well as tips for spotting promising small-cap stocks.

Pros of Investing in Small-Cap Stocks

Some clear advantages of investing in small-cap stocks include:

• High Growth Potential: Small companies can grow quickly, offering the chance for significant returns.
• Less Competition: Small firms often operate in niche markets with fewer competitors, creating more opportunities.
• Long-Term Upside: Early-stage companies can become tomorrow’s market leaders, delivering strong gains over time.

Small companies typically have more room to grow compared to large, established firms. A successful small-cap stock can experience rapid expansion, potentially delivering substantial returns for early investors. They can also penetrate underserved markets, swiftly gaining market share.

Additionally, small-cap stocks may be overlooked by larger institutional investors, providing individual investors with more opportunities to discover undervalued stocks.

Cons of Investing in Small-Cap Stocks

A few disadvantages of investing in small-cap stocks may include:

• Higher Volatility: Prices can fluctuate sharply, leading to increased short-term risk.
• Lower Liquidity: It can be harder to buy or sell quickly without impacting the stock price.
• Higher Risk of Failure: Smaller businesses are more likely to struggle or fail, especially during economic downturns.

Overall, investors should be prepared for potential short-term losses in exchange for the possibility of long-term gains. It’s essential to closely evaluate the financial stability of small-cap stocks, as they can be more vulnerable to market fluctuations.

Looking for a complete list of the top small-cap stocks this month? Get AAII’s September 2026 Small-Cap Stock List today to discover fresh stock ideas and enhance your investment research. Complete the form below to download our small-cap stock list now.

How to Know Which Small-Cap Stocks to Buy

When deciding which small-cap stocks to buy, look for green and red flags.

Green flags that could indicate a small-cap stock is a good investment include:

• Strong revenue growth
• A solid business plan
• A good management team
• Positive cash flow
• Healthy profit margins

In comparison, some red flags to watch out for include:

• High debt levels
• Declining sales
• Unclear financial information

To fully understand if a small-cap stock is a good investment or not, look at key metrics like the price-earnings (P/E) ratio, earnings per share (EPS) and return on equity (ROE).

Investors can use analysis tools to determine if a small-cap stock is a good investment. One such tool is AAII’s Stock Grades, which employ an A–F grading system based on financial metrics to assign a grade to the stock. This helps investors assess its potential more clearly.

By paying attention to these factors, you can make smarter choices when investing in small-cap stocks.

Are Small Caps a Good Investment Now?

In 2026, small-cap stocks may present a mixed opportunity for investors. Historically, they tend to perform best in bull markets, where economic growth fuels expansion and higher consumer spending. However, in uncertain or bear markets, they can be more vulnerable to downturns.

Current market conditions suggest that while some small caps may thrive as the economy stabilizes, others might struggle. Investors should carefully assess individual companies and broader market trends to determine if small caps fit their investing strategy right now.

Are Small-Cap Stocks Riskier?

Small-cap stocks are often considered riskier than larger stocks, primarily due to their volatility and market fluctuations.

“Risky” in investing refers to the chance of losing money or experiencing significant price changes.

To determine your appetite for risk, consider factors like your financial goals, investing timeline and comfort level with price swings. If you’re investing for the long term and can handle short-term ups and downs, small caps might be a suitable choice. However, if you prefer stability and lower volatility, you may want to focus on larger, more established companies.

Understanding your risk tolerance is key to making informed investment decisions.

Do Small Caps Outperform During Recessions?

Small-cap stocks typically face challenges during recessions, as they often lack the resources of larger companies to weather tough economic times. However, some small caps can outperform by showing resilience through strong fundamentals.

To determine if a stock might survive a recession, look at things like a company’s:

• Financial health
• Consistent revenue
• Manageable debt levels
• Positive cash flow

Analyzing historical performance during past downturns can also provide insights. Additionally, consider the company’s industry and how it tends to fare in economic slowdowns.

By focusing on these factors, investors can identify small-cap stocks with the potential to outlast tough times.

Can Small-Cap Stocks Outperform Large-Caps Long Term?

Yes, small-cap stocks have the potential to outperform large-cap stocks over the long term, largely due to their higher growth potential. While small-cap stocks are riskier and more volatile, they often represent emerging companies that can experience rapid expansion and deliver substantial returns.

Historically, during periods of economic growth and bull markets, small caps have outpaced large caps.

However, this performance comes with greater risk, so it’s important for investors to carefully balance small-cap exposure with other, more stable investments to create a diversified portfolio.

AAII’s Top Small-Cap Stocks List Fall 2026

AAII’s Top Small-Cap Stocks List features noteworthy small-cap stocks selected based on our AAII Stock Grades and other analysis criteria. This comprehensive list with data as of September 4, 2026, serves as a valuable starting point for investors seeking new stock ideas. We encourage you to use this list alongside AAII’s tools or your own research to evaluate which stocks may be a good fit for your portfolio.

Keep in mind, this is not a recommendation list but rather a collection of ideas backed by data insights.

Complete the form below to download your FREE spreadsheet of the top small-cap stocks of 2026 now, along with important investing metrics.

Best Small-Cap Growth Stocks

Our spreadsheet features some of the best small-cap growth stocks selected based on our criteria and investment strategy. If you’re a growth investor looking to enhance your portfolio with small caps, this list provides valuable ideas to consider.

While these stocks are not recommendations, they serve as a solid starting point for your research. We encourage you to utilize AAII’s Stock Grades, screeners or other tools to delve deeper into each stock’s potential.

Best Small-Cap Value Stocks in September

Our small-cap value stocks list includes some of the top small-cap value stocks selected based on our criteria and investment strategy.

If you’re a value investor looking to diversify your portfolio with small caps, this list provides valuable ideas to explore.

While these stocks are not recommendations, they serve as a great starting point for your research. You can use AAII’s Stock Grades, screeners or other tools to analyze these stocks further and assess their potential fit for your investing goals.

How to Use AAII’s Best Small-Cap Stocks List

Using AAII’s Best Small-Cap Stocks List can be an effective way to identify potential investing ideas. While not every stock on the list may be a buy right now, it provides a solid foundation for building your watchlist.

Our small-cap stock list offers key metrics and insights, making it easier to spot quality small-cap investments. You can enhance your research by combining AAII’s A–F Stock Grades with our prebuilt stock screens or customizing your own screener to uncover additional small-cap opportunities on our website.

Inside the September 2026 Small-Cap Stock List

This curated list of over 10 small-cap stocks spans key sectors including consumer discretionary, energy, health care and financials — giving you a diversified starting point to uncover high-potential opportunities backed by data-driven grades. Some stocks on the list include:

• Credit Acceptance Corporation (CACC): A Quality Grade, B Value Grade — strong profitability with reasonable valuation

• Helix Energy Solutions Group, Inc. (HLX): B Growth, B Quality — quality stock with sustainable growth

• California Resources (CRC): A Growth Grade, B Value Grade — attractive pricing backed by significant growth potential

This list highlights small-cap stocks with strong underlying fundamentals and data-driven grades, giving you a clear starting point for research. It helps you identify overlooked opportunities across sectors that may offer meaningful long-term growth potential.

Final Insights on the Top Small-Cap Value Stocks for September 2026

This month’s list features 7 small-cap value stocks spanning financials, health care, industrials, and real estate, giving you a diversified starting point across sectors that are often overlooked by larger investors. Every stock is scored across five grades: Value, Momentum, Quality, Growth, and Revision, so you can see not just whether a stock is cheap, but whether the underlying business supports that valuation.

A few more names from this month’s list, beyond the ones covered earlier in this article:

• Credit Acceptance Corporation (CACC): A Quality Grade paired with a B Value Grade, strong profitability at a reasonable valuation.
• NMI Holdings, Inc. (NMIH): An 83 Value Score alongside a 100 Growth Score, an attractive price paired with standout growth potential.
• Pebblebrook Hotel Trust (PEB): An 86 Value Score and a 94 Revision Score, a discounted valuation with improving analyst sentiment.
• Enact Holdings, Inc. (ACT): An 82 Value Score with a 70 Momentum Score, a solid combination of low valuation and building price strength.

Performance and data as of September 4, 2026.

This list highlights small-cap stocks with strong underlying fundamentals and data-driven grades, giving you a clear starting point for research. It helps you identify opportunities across sectors that may be overlooked simply because they’re smaller or less covered by analysts.

Investing in small-cap value stocks offers real potential for long-term gains, but the risks are real too. These companies tend to see greater price volatility, lower trading volume, and a higher chance of business struggles during difficult economic conditions than their large-cap counterparts.

AAII’s free Small-Cap Value Stock List for September 2026 is an excellent starting point, featuring companies that met our screening criteria this month. But the list is just the beginning. To act on these ideas well, dig into each company’s financials, evaluate its risks, and build your own view before investing. Small-cap value investing can be rewarding, but it takes real research and a clear strategy.

Additionally, consider subscribing to A+ Investor, which gives you access to our robust stock analysis tools, including the A–F Stock Grades and stock screens. These resources can help you make informed decisions and streamline your current stock research process, making it even easier to find new small-cap stock opportunities. Try A+ Investor for 30 days.

Looking for new small-cap stocks to add to your portfolio? Download AAII’s FREE list of the best small-cap stocks for September 4, 2026 and see the top-performing small-cap stocks you should have on your radar.

AAII Disclaimer

AAII is not a registered investment adviser or a broker/dealer. Readers are advised that articles are provided solely for informational purposes and should not be construed as an offer to sell or the solicitation of an offer to buy securities. The opinions and analyses included herein are based on sources believed to be reliable and written in good faith, but no representation or warranty, expressed or implied, is made as to their accuracy, completeness, timeliness, or correctness. Neither we nor our information providers shall be liable for any errors or inaccuracies, regardless of cause, or the lack of timeliness of, or any delay or interruptions in the transmission thereof to the users. All investment information contained herein should be independently verified.

Past performance is no guarantee of future results. Investment information provided may not be appropriate for all investors. Investment information is provided without consideration of your financial sophistication, financial situation, investing time horizon, or risk tolerance. Readers are urged to consult with their own independent financial advisers with respect to any investment.

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