Why is AAR stock surging today?

AAR Corp's stock experienced a significant surge of 6.9% in pre-market trading due to two key catalysts. First, the company announced a definitive agreement to acquire a 65% controlling interest in MRO Holdings for an implied enterprise value of $4.0 billion. This valuation places MRO Holdings at 10.7 times its forecasted 2026 adjusted EBITDA.

Additionally, AAR reported strong fiscal first-quarter earnings, with adjusted diluted EPS of $1.49, surpassing analyst consensus by $0.18. Revenue for Q1 FY2027 also exceeded expectations, increasing by 24% year-over-year to $918 million. The MRO Holdings acquisition is the more substantial of the two catalysts as it would create the world's largest heavy maintenance, repair, and overhaul provider, potentially servicing nearly 3,000 aircraft per year across 12 facilities compared to AAR's current 1,200 aircraft at seven sites.

Management projects the deal will raise AAR's adjusted EBITDA margin from the current 13-14% range to 19-20% within three years, supported by $75 million in annual cost synergies and $150 million in transaction-related tax benefits. The acquisition will be funded through $2.1 billion in new debt and $780 million in equity issued at $135 per share.

AAR's stock surge appears to be driven primarily by investor confidence in the company's improved scale and margins, rather than macroeconomic factors. Analyst RBC Capital reiterated an Outperform rating with a $145 price target after the announcement, and the consensus 12-month target is near that level, indicating further upside potential.