The United States market has shown robust growth, climbing 2.7% in the last week and rising 21% over the past year, with earnings projected to grow by 17% annually in the coming years. In this vibrant market environment, identifying small-cap stocks with insider buying can be a promising strategy for investors seeking potential opportunities.

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

Name	PE	PS	Discount to Fair Value	Value Rating
Onterris	NA	0.7x	50.03%	★★★★★☆
Enovis	NA	0.7x	20.99%	★★★★★☆
Bank of Marin Bancorp	NA	7.5x	27.86%	★★★★☆☆
Kingstone Companies	7.8x	1.2x	45.27%	★★★★☆☆
Similarweb	NA	2.3x	16.34%	★★★★☆☆
Auburn National Bancorporation	11.0x	2.7x	9.07%	★★★☆☆☆
German American Bancorp	13.4x	5.0x	24.61%	★★★☆☆☆
Union Bankshares	9.0x	1.9x	16.08%	★★★☆☆☆
Shore Bancshares	12.0x	3.5x	34.29%	★★★☆☆☆
Orion Group Holdings	115.9x	0.5x	42.32%	★★★☆☆☆

Let's take a closer look at a couple of our picks from the screened companies.

CPI Card Group (PMTS)

Simply Wall St Value Rating: ★★★☆☆☆

Overview: CPI Card Group is a payment technology company specializing in the design, production, and management of secure and innovative financial cards, with a market capitalization of approximately $0.21 billion.

Operations: The company's revenue is primarily driven by its Prepaid Solutions and Segment Adjustment, totaling $589.21 million after accounting for eliminations. The gross profit margin has shown a downward trend from 38.89% in 2015 to 30.97% in mid-2026, reflecting changes in cost structures and pricing strategies over the periods analyzed.

PE: 23.2x

CPI Card Group, a company with a market cap that places it among smaller peers, recently showcased promising financial results. For Q2 2026, sales jumped to US$149.18 million from US$129.75 million the previous year, while net income rose to US$2.04 million from US$0.518 million. Despite its negative shareholders' equity and reliance on external borrowing for funding, insider confidence is evident through recent share purchases by key executives in early 2026. The company's raised earnings guidance hints at potential growth prospects for the remainder of the year amidst strategic leadership changes like Terra Grantham's appointment as CFO in June 2026.

Krispy Kreme (DNUT)

Simply Wall St Value Rating: ★★★☆☆☆

Overview: Krispy Kreme is a global doughnut company and coffeehouse chain with operations in the U.S., international markets, and market development segments, currently holding a market cap of approximately $2.17 billion.

Operations: The company's revenue is primarily derived from the U.S. market at $840.64 million, followed by international operations at $525.30 million, and market development contributing $99.76 million. Over recent periods, the gross profit margin has shown fluctuations, with a notable figure of 28.25% as of December 2024 before declining to 23.05% by December 2025 and slightly increasing to 24.95% in June 2026.

PE: -6.1x

Krispy Kreme, a company navigating the challenges of profitability, recently reported a Q2 net loss of US$20.31 million on revenue of US$331 million, showing improvement from last year's larger losses. With new leadership in commercial and people operations, they aim to drive growth and enhance customer relations. Their seasonal menu refreshes continue to attract attention with innovative doughnut collections like the Autumn Seasonal Collection. Despite being dropped from multiple indices in June 2026, Krispy Kreme maintains its earnings guidance for 2026 with projected revenues between US$1.25 billion and US$1.35 billion, signaling potential for recovery amidst strategic expansion plans in the Baltic States through franchise agreements.

MasterBrand (MBC)

Simply Wall St Value Rating: ★★★☆☆☆

Overview: MasterBrand specializes in the design and manufacture of furniture and fixtures, with a market capitalization of $1.25 billion.

Operations: The company generates revenue primarily from its Furniture & Fixtures segment, with recent figures showing $2.78 billion in revenue. Over the observed periods, the net income margin has shown fluctuations, reaching as high as 6.87% but also experiencing a decline to negative values in recent quarters. The gross profit margin peaked at 33.62% before decreasing to 26.90%. Operating expenses and non-operating expenses have consistently impacted overall profitability, contributing to variations in net income outcomes over time.

PE: -19.7x

MasterBrand's recent financial performance highlights challenges, with a net loss of US$57.6 million in Q2 2026 compared to a net income of US$37.3 million the previous year, despite sales rising to US$815.2 million from US$730.9 million. The company's revenue is expected to grow by 25% annually, yet earnings have declined by nearly 32% over five years. Insider confidence is evident as CEO R. Banyard purchased 60,000 shares for approximately US$505,800 in early August 2026, suggesting belief in potential growth amidst current hurdles and external borrowing risks.

Where To Now?

• Click through to start exploring the rest of the 59 Undervalued US Small Caps With Insider Buying now.
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Curious About Other Options?

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• 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.