Heating and cooling solutions company AAON (NASDAQ: AAON) reported Q1 CY2026 results exceeding the market’s revenue expectations, with sales up 54.3% year on year to $496.9 million. Its non-GAAP profit of $0.48 per share was 63.3% above analysts’ consensus estimates.

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"First‑quarter results demonstrate strong earnings growth driven by higher volume, improved execution, and continued share gains," said President and CEO Matt Tobolski.

Company Overview

Backed by two million square feet of lab testing space, AAON (NASDAQ: AAON) makes heating, ventilation, and air conditioning equipment for different types of buildings.

Revenue Growth

A company’s long-term sales performance can indicate its overall quality. Any business can put up a good quarter or two, but many enduring ones grow for years. Luckily, AAON’s sales grew at an incredible 26.8% compounded annual growth rate over the last five years. Its growth beat the average industrials company and shows its offerings resonate with customers.

Long-term growth is the most important, but within industrials, a half-decade historical view may miss new industry trends or demand cycles. AAON’s annualized revenue growth of 17.8% over the last two years is below its five-year trend, but we still think the results suggest healthy demand.

This quarter, AAON reported magnificent year-on-year revenue growth of 54.3%, and its $496.9 million of revenue beat Wall Street’s estimates by 29.5%.

Looking ahead, sell-side analysts expect revenue to grow 10.3% over the next 12 months, a deceleration versus the last two years. Despite the slowdown, this projection is healthy and indicates the market is forecasting success for its products and services.

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Operating Margin

Operating margin is a key measure of profitability. Think of it as net income - the bottom line - excluding the impact of taxes and interest on debt, which are less connected to business fundamentals.

AAON has been an efficient company over the last five years. It was one of the more profitable businesses in the industrials sector, boasting an average operating margin of 14.9%. This result was particularly impressive because of its low gross margin, which is mostly a factor of what it sells and takes huge shifts to move meaningfully. Companies have more control over their operating margins, and it’s a show of well-managed operations if they’re high when gross margins are low.

Analyzing the trend in its profitability, AAON’s operating margin decreased by 2.7 percentage points over the last five years. This raises questions about the company’s expense base because its revenue growth should have given it leverage on its fixed costs, resulting in better economies of scale and profitability.

This quarter, AAON generated an operating margin profit margin of 11.5%, in line with the same quarter last year. This indicates the company’s cost structure has recently been stable.

Earnings Per Share

We track the long-term change in earnings per share (EPS) for the same reason as long-term revenue growth. Compared to revenue, however, EPS highlights whether a company’s growth is profitable.

AAON’s EPS grew at a decent 9.8% compounded annual growth rate over the last five years. However, this performance was lower than its 26.8% annualized revenue growth, telling us the company became less profitable on a per-share basis as it expanded.

Diving into AAON’s quality of earnings can give us a better understanding of its performance. As we mentioned earlier, AAON’s operating margin was flat this quarter but declined by 2.7 percentage points over the last five years. Its share count also grew by 3%, meaning the company not only became less efficient with its operating expenses but also diluted its shareholders.

Like with revenue, we analyze EPS over a shorter period to see if we are missing a change in the business.

For AAON, its two-year annual EPS declines of 18.7% mark a reversal from its five-year trend. We hope AAON can return to earnings growth in the future.

In Q1, AAON reported adjusted EPS of $0.48, up from $0.37 in the same quarter last year. This print easily cleared analysts’ estimates, and shareholders should be content with the results. Over the next 12 months, Wall Street expects AAON’s full-year EPS of $1.46 to grow 50.2%.

Key Takeaways from AAON’s Q1 Results

It was good to see AAON beat analysts’ revenue, EBITDA, and EPS expectations convincingly this quarter. Zooming out, we think this was a solid print. The stock traded up 24.4% to $122.33 immediately following the results.

AAON may have had a good quarter, but does that mean you should invest right now? The latest quarter does matter, but not nearly as much as longer-term fundamentals and valuation, when deciding if the stock is a buy. We cover that in our actionable full research report which you can read here (it’s free).