Astronics vs. Heico: Which Aerospace Services Stock Offers More Upside?

Aerospace service providers Astronics (ATRO) and Heico (HEI) are both poised for growth driven by increasing global air traffic and defense spending, yet Astronics presents a more compelling investment profile. ATRO has significantly outperformed HEI with a 111.9% stock surge over the past year versus HEI's 20.5%, and trades at a more attractive forward P/E of 21.55X compared to HEI's 61.87X. Furthermore, ATRO exhibits lower leverage and a higher Return on Equity, suggesting greater relative upside despite industry-wide risks such as supply-chain disruptions.

Analysis

The aerospace services sector is experiencing robust demand driven by dual tailwinds: rising global air passenger traffic, which fuels the aftermarket, and increasing geopolitical tensions, which boost defense budgets. Both Astronics (ATRO) and HEICO (HEI) are direct beneficiaries, with ATRO reporting a 3.3% year-over-year sales increase in Q2 2025, including a 13% rise in its commercial transport segment, while HEI's Flight Support Group saw sales grow 18% in its fiscal third quarter. Despite both companies capitalizing on these trends, a fundamental comparison reveals a more compelling case for Astronics. ATRO's stock has significantly outperformed, surging 111.9% over the past year compared to HEI's 20.5% gain. This performance is underpinned by superior financial metrics, including a higher Return on Equity (22.89% vs. HEI's 16.29%) and a lower long-term debt-to-capital ratio (36.97 vs. 40.62). Furthermore, ATRO trades at a considerable valuation discount, with a forward P/E of 21.55X versus HEI’s 61.87X. While HEI projects stronger top-line growth for fiscal 2025 (14% vs. ATRO's 7%), ATRO is forecast to deliver significantly higher EPS growth of 46.8%, compared to 28.1% for HEI. Both firms face near-term risks from persistent supply-chain disruptions impacting OEM clients and potential trade tariff headwinds, which could constrain revenue growth despite the positive long-term outlook.

Key Decisions for Investors

• Given Astronics' significant valuation discount on a forward P/E basis (21.55X vs. HEI's 61.87X) coupled with superior ROE and lower leverage, investors should consider it a more attractive relative value play within the aerospace services sector.
• Monitor key industry risks, particularly supply-chain updates and production rate announcements from major OEMs like Boeing and Airbus, as these factors represent the primary near-term constraint on revenue growth for both ATRO and HEI.
• Investors should focus on ATRO's execution of its capital expenditure plan ($40-$50 million in 2025) and strategic acquisitions, as its strong balance sheet and projected 46.8% EPS growth suggest significant potential for value creation if managed effectively.
• Despite HEI's strong 14% sales growth forecast, its premium valuation and lower profitability metrics relative to ATRO suggest that a hold or neutral position may be more prudent until its valuation becomes more aligned with its fundamental performance.