Amentum Holdings, Inc. Q3 2026 Earnings Recap

Shares of Amentum fell 7.9% after the company lowered near-term revenue expectations and flagged a 3% revenue headwind in fiscal 2027 tied to NASA workforce in-sourcing, offset only partially by strong margin expansion and solid business development.

Key Takeaways

• Q3 revenue totaled $3.5 billion, representing modest normalized growth of approximately 1%, below prior internal expectations.
• Adjusted EBITDA reached $290 million with margins expanding to 8.3%, reflecting operating efficiency despite revenue challenges.
• Adjusted diluted EPS grew 20% year-over-year to $0.67, supported by margin gains.
• Fiscal 2026 guidance was revised downward on revenue but raised for adjusted EBITDA and EPS, highlighting cautious outlook on near-term growth.
• Amentum anticipates a 3% revenue impact in fiscal 2027 from NASA insourcing, a risk elevated from prior commentary, partially offset by margin accretion.