AAON Stock Jumps 19% After Record Q3 Earnings
Why did AAON stock jump 19%?
AAON (AAON) stock jumped 19.3% to $75.01 on Tuesday after the HVAC maker reported record third-quarter sales and raised its 2026 growth outlook, driven by data center cooling demand.
Key numbers
| AAON Q3 net sales | $707.4M+84.1% YoY |
|---|---|
| AAON Q3 diluted EPS | $0.83+124.3% YoY |
| AAON 2026 sales growth outlook | 72%–75%from 55%–60% |
| AAON backlog | $1.9B+40.5% YoY |
| AAON close, Nov 10 | $75.01+19.3% (per [2][3]) |
| Mercury Q1 revenue | $253.2Mshares about -3% after hours |
What happened
AAON (AAON) stock jumped 19.3% to $75.01 on Tuesday after the HVAC maker reported record third-quarter sales and raised its 2026 growth outlook, driven by data center cooling demand. Sales rose 84% from a year ago to $707.4 million, and the company now expects 2026 sales to grow 72% to 75%, up from 55% to 60%. It also corrected its first-half 2026 results (a restatement) and flagged a weakness in its accounting checks, but found no fraud. Separately, Mercury Systems (MRCY) fell about 3% after hours Tuesday despite beating profit and sales forecasts.
Why it matters
AAON shows how the AI building boom is lifting companies that cool data centers, the buildings full of computers that run AI. Its data center brand, BASX, now makes up more than half of sales, so results lean heavily on that spending. The accounting fixes are a reminder that very fast growth can come with weaker internal checks. Mercury's dip shows a good report does not always lift a stock that had already risen.
Who this affects
- MarketmixedMedium impact
- Investors in AI-linked industrial stocks cheered; accounting flag adds caution.
- CompanymixedHigh impact
- Shareholders gain from the jump; weak controls need fixing.
- CompetitorsneutralLow impact
- Cooling rivals such as Vertiv got a strong demand signal.
- IndustrybullishMedium impact
- Data center cooling demand is outgrowing traditional HVAC for makers.
AAON vs Vertiv, Trane Technologies, Lennox
How we got here
AAON reports record Q3 sales, raises 2026 outlook and restates first-half results after market close.
AAON shares jump 19.3% to close at $75.01.
Mercury Systems beats fiscal Q1 forecasts, yet shares fall about 3% after hours.
What to watch
- AAON's progress fixing the material weakness in its financial reporting controls.Q4 2026
- Whether AAON delivers its 72%–75% full-year sales growth target.Q1 2027
- Mercury's free cash flow, negative $24M last quarter, and its management changes.Q2 fiscal 2027
Educational content only. Not investment advice.
More briefsAll briefs →

CoreWeave Stock Dips 0.5% Despite Q3 Earnings Beat
CoreWeave (CRWV) raised its 2026 sales forecast to $13B–$13.3B, but investors stayed wary of AI spending.
Charter Stock Jumps 10% After $2B Cost-Savings Plan
Charter Communications (CHTR) closed at $133.99 as it targets $2B in savings plus over $1B of Cox synergies.
Homebuilder Stocks Slide as Rate-Hike Odds Rise: Lennar Down 5%
Lennar (LEN) fell 5.4% and D.R. Horton (DHI) lost 3.8% after hot inflation data raised rate worries