Why Is Heico (HEI) Down 10.3% Since Last Earnings Report?

HEICO reported fiscal Q3 2026 EPS of $1.67, beating consensus by 10.6%, while net sales rose 23.1% year over year to $1.41 billion, 4.9% above estimates. Operating income increased 34% to $355.2 million and operating margin expanded 200bps to 25.1%, with record net income of $235.4 million (+32.8%). Despite the shares falling 10.3% since earnings and long-term debt increasing to $2.54 billion from $2.16 billion, analyst estimates have trended upward and Zacks rates the stock Buy.

Analysis

HEI’s drawdown despite upward estimates indicates the market is discounting a valuation/de-risking issue rather than an operating miss. The key question for the next 1-3 months is whether organic growth and incremental margins can remain elevated without further acquisition-driven balance-sheet expansion; a premium aerospace-aftermarket multiple is vulnerable if investors begin capitalizing the higher interest burden rather than annualizing recent SG&A leverage. The stock needs estimate revisions to outpace multiple compression to recover.

Competitive read-through is selectively positive for aerospace aftermarket peers TDG and HWM, but HEI’s ability to combine above-market growth with margin expansion raises a more adverse implication for smaller component suppliers: OEMs and airlines appear willing to concentrate spend with scaled, certified aftermarket vendors. TDG is the cleaner scarcity/aftermarket analogue but carries similar duration risk; HWM has greater exposure to OEM production rates and therefore less insulation if commercial aerospace delivery schedules slip.

The contrarian opportunity is that a 10% post-print decline may be creating a better entry in a structurally scarce asset, provided the next report confirms cash conversion after acquisitions and no deterioration in organic growth. The principal falsifiers are a sequential deceleration in Flight Support demand, Electronic Technologies margins reverting below 25%, or leverage continuing to rise faster than operating cash flow. A broad defense/aerospace de-rating from higher real yields remains the near-term risk even if company execution holds.

Key Decisions for Investors

• Accumulate HEI only in tranches over the next 2-6 weeks, preferably on further multiple-driven weakness rather than chasing a rebound; target a 12-18 month 15-25% total-return setup if organic growth remains double-digit and margins hold near current levels. Exit/reassess on two consecutive quarters of sub-10% organic growth or a material guidance reduction.
• Use a relative-value expression: long HEI / short TDG in equal dollar amounts for 3-6 months if HEI’s valuation discount widens further. HEI has more room for operating leverage and estimate catch-up; risk is that TDG’s higher aftermarket purity commands a persistent premium regardless of fundamentals.
• Do not add leverage-sensitive aerospace beta through ITA or XAR solely on this signal. Monitor HEI’s net-debt-to-EBITDA trend and acquisition pipeline before treating the selloff as a durable entry point; further debt-funded M&A would likely cap multiple expansion.
• Ahead of the next earnings release, watch quarterly organic growth and free-cash-flow conversion rather than headline EPS. A sustained margin above 25% with cash flow covering acquisition spending would support increasing the HEI position; weaker conversion or renewed interest-expense acceleration is a stop signal.