Over the last 7 days, the United States market has risen by 1.2% and over the past 12 months, it is up by an impressive 29%, with earnings forecasted to grow annually by 17%. In this thriving environment, identifying small-cap stocks with insider buying can present intriguing opportunities for investors seeking potential value in a dynamic market landscape.

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

Name	PE	PS	Discount to Fair Value	Value Rating
Kingstone Companies	7.4x	1.0x	49.15%	★★★★★☆
First United	9.4x	2.7x	48.09%	★★★★★☆
Financial Institutions	9.0x	2.9x	31.09%	★★★★★☆
Appian	1772.7x	2.1x	39.42%	★★★★★☆
First Bancorp	8.9x	3.4x	31.46%	★★★★☆☆
PCB Bancorp	8.7x	3.0x	18.10%	★★★★☆☆
Similarweb	NA	1.3x	41.42%	★★★★☆☆
Metropolitan Bank Holding	13.1x	3.7x	39.12%	★★★☆☆☆
German American Bancorp	12.0x	4.4x	44.83%	★★★☆☆☆
Bank of Marin Bancorp	NA	11.8x	33.86%	★★★☆☆☆

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

AerSale (ASLE)

Simply Wall St Value Rating: ★★★★★☆

Overview: AerSale specializes in providing aviation products and services, including MRO (Maintenance, Repair, and Overhaul) services and asset management solutions for engines and aircraft, with a market capitalization of $0.76 billion.

Operations: AerSale generates revenue primarily through its Tech Ops and Asset Management Solutions segments, with significant contributions from MRO Services and Engine sales. The company's gross profit margin has shown variation over recent periods, reaching 31.37% as of March 2026.

PE: 28.3x

AerSale, a company with a focus on aircraft leasing and asset management, shows potential as an undervalued stock. Despite reporting a net loss of US$3.45 million in Q1 2026, sales increased to US$11.85 million from US$7.5 million the previous year, indicating growth momentum. Insider confidence is evident with recent share purchases by executives in March 2026. The strategic lease of a Boeing 757-200PCF to Stratos Freight highlights AerSale's commitment to expanding its global footprint and enhancing connectivity across key trade routes.

i3 Verticals (IIIV)

Simply Wall St Value Rating: ★★★☆☆☆

Overview: i3 Verticals is a technology and payment processing company that provides integrated software and services to various industries, with a market cap of approximately $0.79 billion.

Operations: The company generates revenue primarily from its public sector segment, with a recent gross profit margin of 68.13%. Operating expenses are significant, driven largely by general and administrative costs.

PE: 140.1x

i3 Verticals, a small company in the U.S., shows potential amidst its financial challenges. Their recent buyback program, totaling US$60 million for 2.7 million shares, indicates insider confidence. Despite relying on higher-risk external funding, earnings are set to grow over 52% annually. Recent earnings showed a net income of US$1.46 million for Q2 2026 compared to last year's loss, though revenue guidance was slightly lowered for the fiscal year ending September 2026.

Byline Bancorp (BY)

Simply Wall St Value Rating: ★★★★☆☆

Overview: Byline Bancorp operates as a bank holding company providing a range of banking services, with a market capitalization of approximately $0.81 billion.

Operations: Byline Bancorp generates revenue primarily from its banking operations, with a notable gross profit margin of 100%. The company's operating expenses are mainly driven by general and administrative costs, which were $201.50 million in the latest period. The net income margin has shown an upward trend over time, reaching 32.96% recently.

PE: 10.8x

Byline Bancorp's recent performance indicates potential for investors seeking undervalued opportunities. For the first quarter ending March 31, 2026, net interest income rose to US$99.86 million from US$88.22 million a year prior, while net income increased to US$37.58 million from US$28.25 million. The company also repurchased 318,208 shares for US$10 million between January and March 2026, suggesting confidence in its valuation and future prospects amid steady earnings growth projections of 4.36% annually.

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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.