Key Highlights

  • AAON (NASDAQ:AAON) shares surged 19.31% on November 10, 2026, among the largest gains in the market on a down day for the major indexes.
  • Third-quarter net sales hit a record USD 707.4 million, up about 84% from a year earlier, and beat estimates.
  • Adjusted Earnings of USD 0.83 per share compared with a USD 0.56 consensus, a beat of about 48%, with gross Margin of 26.7%.
  • The company raised its full-year 2026 outlook, and Backlog in its BASX Data Center cooling Business stood about 51% above last year.

Data Center Cooling Drives a Record Quarter

AAON (NASDAQ:AAON) builds heating, ventilation and air conditioning equipment, and over the past two years it has become one of the market's preferred ways to invest in the cooling needs of artificial intelligence data centres. Its BASX Brand makes custom air handling and liquid cooling systems for hyperscale and colocation customers, and that business has been the main engine behind the jump in sales. Net sales of USD 707.4 million rose about 84% year on year, a record for the company, as data centre projects shipped alongside its traditional rooftop and commercial HVAC units. The scale of the beat was large. Adjusted earnings of USD 0.83 per share were well ahead of the USD 0.56 consensus, and gross margin reached 26.7%, helped by better absorption at its plants as volumes rose. The quarter also showed that the company can scale output quickly without a collapse in profitability, which had been a key worry after earlier capacity additions weighed on margins. Management credited operational improvements in its plants, alongside pricing that reflects the engineering content of custom data centre equipment.

Backlog, Outlook and Why the Stock Moved

The company raised its full-year outlook, and the topic of growth durability was addressed by the order book. BASX backlog fell about 5% from the prior quarter as large projects shipped, but it was still about 51% higher than a year earlier, which suggests Demand remains well ahead of last year's level even as deliveries accelerate. The 19.31% move came on a day when the S&P 500 fell 0.38% and technology was the weakest sector, so the gain was firmly stock-specific. Investors had been worried about margin pressure and execution at new production lines, and the quarter eased both concerns at once. AAON's move also fits a wider pattern this earnings season in which suppliers of power and cooling equipment to data centres have been rewarded when they show both growth and margin improvement. For a stock that had pulled back from its highs as investors questioned how long the data centre spending cycle could last, the report offered fresh evidence that orders are still running well ahead of last year.

Risks Behind the Rally

The risks are tied to concentration and cyclicality. A large part of growth depends on a relatively small group of data centre customers, and project timing can make quarterly results lumpy. The sequential dip in BASX backlog will be watched closely to see whether it is simply delivery timing or an early sign of slower ordering. The traditional residential and commercial HVAC market is sensitive to interest rates and construction activity, both of which face pressure after the hot October Inflation report pushed Treasury yields back toward 5%. Investors will watch fourth-quarter orders, the trajectory of BASX backlog and whether gross margin can hold near 26.7% as AAON (NASDAQ:AAON) ramps capacity.

Where Things Stand

AAON (NASDAQ:AAON) jumped 19.31% on November 10, 2026 after record third-quarter sales of USD 707.4 million, up about 84%, and adjusted earnings of USD 0.83 per share against a USD 0.56 consensus. The company raised its full-year outlook, and BASX data centre cooling backlog was about 51% above last year despite a 5% sequential dip. Order trends and margin durability will decide whether the gain holds.