AAR reports fourth quarter and fiscal year 2026 results

AIR is transitioning from a “recovering cyclical” to a more credible compounder, but the market should focus less on the reported growth rate and more on mix. The higher-margin parts/software mix, plus the deliberate exit of lower-quality legacy programs, creates a cleaner earnings bridge; that typically supports a multiple re-rate before the cash flow fully catches up. The key second-order effect is competitive: airlines and lessors are still outsourcing more maintenance complexity, so AIR can take share without needing industry-wide unit growth to stay strong.

The caveat is that this is still a working-capital-heavy model. Inventories and acquisition-related cash needs mean headline EBITDA is outperforming cash conversion, so the equity story is more fragile than the income statement suggests if supplier lead times normalize or customers push back on terms. Over the next 1-3 months, the stock should trade on whether management can translate the new guidance framework into sustained organic growth ex-acquisitions; over 6-18 months, the real upside is margin expansion and deleveraging if integration synergies arrive on schedule.

Contrarian view: the market may be underestimating how much of the recent improvement is mix/accounting rather than pure end-market acceleration. If legacy wind-downs and acquisition add-backs obscure underlying cash generation, the multiple could stall even with strong EPS growth. The thesis is falsified if FY27 organic growth decelerates materially below low-double-digits or if adjusted EBITDA margin fails to move meaningfully above the low-12% area after the next two quarters.