Is HEI a good stock to buy? We came across a bullish thesis on HEICO Corporation on The Investor’s Compass’s Substack. In this article, we will summarize the bulls’ thesis on HEI. HEICO Corporation’s share was trading at $345.07 as of May 28th. HEI’s trailing and forward P/E were 61.62 and 59.17 respectively according to Yahoo Finance.
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HEICO Corporation is a leading aerospace and defense company specializing in FAA-approved aftermarket aircraft parts and highly engineered components, positioning itself as a critical supplier within global aviation maintenance and safety ecosystems. Its core moat is rooted in regulatory certification, reliability, and entrenched customer trust, as FAA approval is a lengthy, costly, and rigid process that makes switching suppliers economically and operationally unattractive for airlines once a component is integrated into maintenance systems.
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This creates extremely high switching costs and durable, recurring demand. HEICO benefits structurally from long-term growth in global air travel and from airlines increasingly focused on reducing costs without compromising safety, driving demand for high-quality aftermarket parts that offer meaningful cost savings versus OEM alternatives while maintaining identical regulatory standards.
Importantly, the company’s competitive advantage is largely insulated from artificial intelligence disruption, as even if AI accelerates design or engineering workflows, every component must still pass the same stringent regulatory approval cycle before deployment in commercial aircraft, preserving the moat. Additionally, aviation’s safety-first culture makes reliability non negotiable, reinforcing customer stickiness. Over time, this dynamic has enabled HEICO to compound value significantly, with the stock appreciating nearly 4,400% over the past two decades, reflecting the durability of its model even through cyclical industry downturns.
The combination of structural growth tailwinds, regulatory barriers, and high switching costs positions HEICO as a long duration compounder with resilient earnings power and continued upside potential as global fleet utilization and maintenance intensity continue to rise, supporting sustained earnings growth and long-term shareholder value creation.
Previously, we covered a bullish thesis on HEICO Corporation (HEI) by Bulls On Parade in February 2025, which highlighted serial acquisitions and Berkshire-like capital allocation model. HEI’s stock price has appreciated by approximately 56.24% since our coverage. The Investor’s Compass shares a similar view but emphasizes FAA certification moat and switching costs driving durable aftermarket demand.