In the last week, the United States market has stayed flat, but it is up 17% over the past year with earnings forecasted to grow by 17% annually. In this dynamic environment, identifying small-cap stocks that may be undervalued and exhibit insider activity can offer unique opportunities for investors seeking potential growth.

Top 10 Undervalued Small Caps With Insider Buying In The United States

Name	PE	PS	Discount to Fair Value	Value Rating
Shore Bancshares	11.7x	3.4x	36.10%	★★★★★☆
Kingstone Companies	8.3x	1.2x	42.02%	★★★★★☆
Onterris	NA	0.8x	49.27%	★★★★★☆
Enovis	NA	0.6x	24.09%	★★★★★☆
Bank of Marin Bancorp	NA	7.1x	31.91%	★★★★☆☆
Bank of the James Financial Group	10.6x	2.4x	28.71%	★★★★☆☆
Union Bankshares	9.6x	2.0x	45.54%	★★★★☆☆
Five Star Bancorp	15.4x	6.6x	44.10%	★★★☆☆☆
German American Bancorp	13.1x	4.9x	25.73%	★★★☆☆☆
Orion Group Holdings	104.9x	0.4x	43.94%	★★★☆☆☆

Below we spotlight a couple of our favorites from our exclusive screener.

Kingstone Companies (KINS)

Simply Wall St Value Rating: ★★★★★☆

Overview: Kingstone Companies operates primarily in the property and casualty insurance sector with a market capitalization of $11.78 million.

Operations: Kingstone Companies generates revenue primarily from property and casualty insurance, with the latest reported revenue at $237.70 million. The company has experienced fluctuations in its gross profit margin, which was recorded at 22.27% in the most recent period. Operating expenses and non-operating expenses contribute significantly to its cost structure, impacting overall profitability.

PE: 8.3x

Kingstone Companies, a smaller player in the U.S. market, has recently shown promising financial performance with second-quarter net income rising to US$15.47 million from US$11.25 million the previous year. Despite being dropped from several growth indices in June 2026, they were added to value-focused indices like Russell 2000 Defensive and Value-Defensive, reflecting their potential for stable returns. The company's proactive risk management initiatives, such as the Ting program for fire prevention launched in July 2026, underscore their commitment to reducing losses and enhancing policyholder engagement. Additionally, insider confidence is evident with recent share purchases by company executives throughout this year. Earnings are forecasted to grow at an annual rate of 14.58%, suggesting future growth potential despite reliance on higher-risk external funding sources.

Ring Energy (REI)

Simply Wall St Value Rating: ★★★☆☆☆

Overview: Ring Energy is an oil and gas exploration and production company with a focus on developing assets in the Permian Basin, holding a market capitalization of approximately $0.53 billion.

Operations: Ring Energy's primary revenue stream is derived from exploration and production, with recent revenues reaching approximately $348.84 million. The company has experienced fluctuations in its net income margin, which was 0.21% as of the latest period. Its gross profit margin showed variability over time, recording a high of 85.79%. Operating expenses are significant and include costs such as general and administrative expenses and depreciation & amortization expense, impacting overall profitability.

PE: -1.7x

Ring Energy, a small player in the energy sector, recently reported a significant increase in net income for Q2 2026, jumping to US$64.79 million from US$20.63 million the previous year. Despite this, they faced a net loss of US$155.8 million over six months due to external borrowing risks and no customer deposits. Insider confidence is evident with recent share purchases by company insiders. Added to several Russell indices in June 2026, Ring Energy anticipates modest production growth through 2027 despite current profitability challenges.

Onterris (ONT)

Simply Wall St Value Rating: ★★★★★☆

Overview: Onterris operates in the measurement and analysis sector, focusing on providing specialized solutions, with a market cap of $3.45 billion.

Operations: The primary revenue streams for ONT are Segment Adjustment and Measurement and Analysis, contributing significantly to its financial performance. The company has experienced a notable increase in gross profit margin, reaching 41.19% by June 2025. Operating expenses have been substantial, with General & Administrative Expenses consistently representing a significant portion of these costs over the periods analyzed.

PE: -52.2x

Onterris, a company with fluctuating share prices, has caught attention for its potential value. Despite recent earnings showing a dip in net income to US$1.37 million from US$18.36 million year-over-year, the company is exploring strategic alternatives to enhance shareholder value. Insider confidence is evident as Independent Director Peter Graham acquired 25,140 shares for approximately US$432,157 in the past year. Additionally, Onterris repurchased 1.6 million shares for US$30 million by June 2026 and secured an AUD 6 million contract for environmental services in Australia, indicating growth prospects despite current challenges.

Where To Now?

• Explore the 56 names from our Undervalued US Small Caps With Insider Buying screener here.
• Have you diversified into these companies? Leverage the power of Simply Wall St's portfolio to keep a close eye on market movements affecting your investments.
• Simply Wall St is a revolutionary app designed for long-term stock investors, it's free and covers every market in the world.

Seeking Other Investments?

• Explore high-performing small cap companies that haven't yet garnered significant analyst attention.
• Fuel your portfolio with companies showing strong growth potential, backed by optimistic outlooks both from analysts and management.
• Find companies with promising cash flow potential yet trading below their fair value.

This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.