AAON is evolving from semi-custom HVAC stalwart into a scarce “AI infrastructure cooling” enabler—high upside if Memphis/ERP execution restores margins, but today’s premium valuation leaves no room for mistakes.
Overview
AAON is at an inflection point, transitioning from a premium semi-custom commercial HVAC manufacturer into a critical infrastructure supplier for the AI-driven data center build-out. Recent results highlight a stark split: Q3’25 net sales grew 17.4% YoY to $384.2M, powered by BASX (data center) revenue up 95.8% to $124.8M, while the core AAON segment declined 1.5% YoY but rebounded strongly sequentially as ERP disruption began to ease. Near-term profitability has suffered—gross margin fell to 27.8% from 34.9% a year ago—primarily from Memphis start-up under-absorption, ERP inefficiencies, and early-stage data center mix, not from lost pricing power. Management is treating 2025 as an investment year, guiding to $180–$220M in capex to expand capacity into a record $1.32B backlog (+103.8% YoY). AAON commands a scarcity premium (roughly ~75x trailing and ~50x forward P/E), meaning the equity case hinges on flawless execution through 2026 as capacity ramps and margins recover.