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Is HEI a good stock to buy? We came across a bullish thesis on HEICO Corporation on Monte Independent Investment Research’s Substack by Monte Investments. In this article, we will summarize the bulls’ thesis on HEI. HEICO Corporation’s share was trading at $292.19 as of April 20th. HEI’s trailing and forward P/E were 57.86 and 50.25 respectively according to Yahoo Finance.
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HEICO Corporation (NYSE: HEI) is a leading supplier of aircraft aftermarket parts and maintenance, repair, and overhaul (MRO) services, with a long track record of growth driven by disciplined acquisitions and organic reinvestment in a fragmented industry. Originally founded as Heinicke Instruments in 1957, the company transitioned into aerospace and has since completed over 110 acquisitions, building a diversified platform across commercial, defense, and business aviation markets.
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Its operations are split between the Flight Support Group (FSG), which contributes roughly 70% of revenue and focuses on aftermarket parts and MRO services, and the Electronic Technologies Group (ETG), which provides mission-critical components for defense and space applications. HEICO is well positioned to benefit from a structural supply-demand imbalance in the aviation industry, where global aircraft production remains significantly below replacement needs, with a shortfall expected to persist into the early 2030s.
This dynamic is driving increased utilization of aging aircraft, supporting sustained demand for aftermarket parts and MRO services. The company’s expanding catalog of FAA-approved parts and ability to pass through rising input costs further reinforces its margin resilience and pricing power.
Recent financial performance reflects this favorable backdrop, with strong revenue growth led by FSG, alongside margin expansion, while temporary pressure in ETG margins is expected to normalize through the fiscal year. HEICO continues to execute on its acquisition strategy, recently adding capabilities across fuel systems and turbine components, further broadening its addressable market. Overall, the company presents a compelling long-term growth story supported by durable industry tailwinds, strong competitive positioning, and consistent execution.
Previously, we covered a bullish thesis on HEICO Corporation (HEI) by Bulls On Parade in February 2025, which highlighted the company’s serial acquisition strategy, strong capital allocation, and growth through integrating cash flow-positive businesses. HEI’s stock price has appreciated by approximately 32.30% since our coverage. Monte Investments shares a similar view but emphasizes on industry tailwinds and aftermarket demand.