AAON Stock Drops -21.9% in 30 Days: Examining the Correction in This Data Center Play
Key Takeaways
- AAON shares declined approximately 21.9% over the past 30 days, falling from a closing price of $95.55 on August 4, 2026, to $74.62 on September 2, 2026.
- The pullback extends a broader correction from a 52-week high near $150.46 reached in early June 2026, leaving the stock down roughly 49.7% over the trailing quarter.
- Record second-quarter 2026 results — revenue up 101.2% year over year to $627 million — beat expectations, but contracting margins and a lowered full-year gross margin outlook pressured the shares.
- Analysts trimmed price targets (Baird to $135 and Oppenheimer to $125) after the report, reinforcing a valuation-driven de-rating.
- Data center cooling demand through the BASX segment remains a core growth driver, though near-term margin execution and premium valuation remain central investor concerns.
AAON's Business Model and Market Standing
AAON, Inc. is a Tulsa, Oklahoma-based manufacturer of commercial and industrial heating, ventilation, and air conditioning (HVAC) equipment. Its product portfolio includes rooftop units, air handlers, condensing units, heat pumps, and custom coils, sold primarily through its AAON Oklahoma and AAON Coil Products segments. Through its BASX segment, the company supplies custom-engineered cooling solutions — including liquid cooling, air-side systems, and chillers — to hyperscale data centers and other precision-cooling environments.
Investors follow AAON closely because it sits at the intersection of two durable themes: commercial HVAC replacement demand and rapid growth in data center thermal management tied to artificial intelligence infrastructure. A roughly $2.0 billion backlog provides multi-quarter revenue visibility, and management has invested heavily in manufacturing capacity to convert that backlog into shipments. I also checked this using Tickeron’s AI Screener to see how the stock compares to others in the industry.
Recent Price Action: The Last 30 Days and the Quarter
Over the last 30 days, AAON fell from a closing price of $95.55 on August 4, 2026, to $74.62 on September 2, 2026, a decline of approximately 21.9%. The move was not a single-day event but a steady drift lower punctuated by a sharp post-earnings selloff in mid-August.
The quarterly picture is even more pronounced. AAON closed near $148.25 on June 3, 2026, shortly after reaching a 52-week intraday high of $150.46. From that level to the September 2 close of $74.62, the stock has dropped roughly 49.7%. This means the past 30 days account for only part of a multi-month unwind that began after the stock peaked in early June.
Drivers of the 30-Day Move
The most significant catalyst was the company's second-quarter 2026 earnings report, released August 10. AAON delivered record net sales of $627 million, up 101.2% year over year, and adjusted diluted earnings per share of $0.69, up 213.6% — both well above consensus estimates. However, consolidated gross margin fell to 24.3% from 26.6% a year earlier, and management lowered its full-year 2026 gross margin outlook to a range of 25%–26%, down from 27%–28%, citing the costs of ramping recently added capacity, elevated outsourcing, and inflationary price-cost timing.
That margin reset overshadowed the revenue beat. Following the report, Baird lowered its price target from $150 to $135 while maintaining an Outperform rating, and Oppenheimer reduced its target from $145 to $125, also maintaining Outperform. Zacks Research had already downgraded the stock from "Strong-Buy" to "Hold" in early July, and KeyCorp initiated coverage with a neutral Sector Weight stance in August. The combination of softer near-term profitability and a premium valuation drove the de-rating during the period. From what I see, this valuation reset is a classic response to margin guidance shifts.
Factors Behind the Quarterly Decline
The quarterly decline reflects a broader unwind of a rally that accelerated after first-quarter 2026 results in early May, when revenue grew 54.3% year over year and data center cooling momentum pushed the stock to record highs. As the shares approached $150, concerns over valuation began to outweigh the strong fundamental narrative.
Over the following months, investors reassessed the pace and profitability of AAON's rapid scaling. Margin compression from new facility ramp-up, the shift toward lower-margin product mix, and price-cost timing all weighed on sentiment. The August earnings report crystallized these concerns by formalizing a lower gross margin outlook, accelerating the repricing that had been building through the quarter.
Key Areas to Monitor Going Forward
Looking ahead, investors will monitor several factors. Third-quarter 2026 results and, in particular, BASX order and bookings trends will signal whether the large-project lumpiness cited by management is temporary or reflective of softer demand. Gross margin trajectory is another key metric, with management guiding toward sequential margin improvement in the second half as higher-priced backlog converts and the Memphis facility scales toward target utilization.
Beyond company-specific factors, the pace of data center capital investment, commercial HVAC end-market conditions, input-cost inflation, and the broader interest-rate environment all carry implications for AAON's growth and valuation. Backlog conversion and the company's ability to sustain pricing discipline will be central to whether the recent de-rating stabilizes or extends further. I'm watching this closely for signs of stabilization.
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AAON's MACD Histogram crosses above signal line
The Moving Average Convergence Divergence (MACD) for AAON turned positive on August 26, 2026. Looking at past instances where AAON's MACD turned positive, the stock continued to rise in of 46 cases over the following month. The odds of a continued upward trend are .
Technical Analysis (Indicators)
Bullish Trend Analysis
The RSI Oscillator points to a transition from a downward trend to an upward trend -- in cases where AAON's RSI Indicator exited the oversold zone, of 29 resulted in an increase in price. Tickeron's analysis proposes that the odds of a continued upward trend are .
The Stochastic Oscillator suggests the stock price trend may be in a reversal from a downward trend to an upward trend. of 52 cases where AAON's Stochastic Oscillator exited the oversold zone resulted in an increase in price. Tickeron's analysis proposes that the odds of a continued upward trend are .
The Momentum Indicator moved above the 0 level on September 04, 2026. You may want to consider a long position or call options on AAON as a result. In of 91 past instances where the momentum indicator moved above 0, the stock continued to climb. The odds of a continued upward trend are .
Following a 3-day Advance, the price is estimated to grow further. Considering data from situations where AAON advanced for three days, in of 344 cases, the price rose further within the following month. The odds of a continued upward trend are .
Bearish Trend Analysis
The 50-day moving average for AAON moved below the 200-day moving average on September 02, 2026. This could be a long-term bearish signal for the stock as the stock shifts to an downward trend.
Following a 3-day decline, the stock is projected to fall further. Considering past instances where AAON declined for three days, the price rose further in of 62 cases within the following month. The odds of a continued downward trend are .
The Aroon Indicator for AAON entered a downward trend on September 04, 2026. This could indicate a strong downward move is ahead for the stock. Traders may want to consider selling the stock or buying put options.
Fundamental Analysis (Ratings)
The Tickeron SMR rating for this company is (best 1 - 100 worst), indicating strong sales and a profitable business model. SMR (Sales, Margin, Return on Equity) rating is based on comparative analysis of weighted Sales, Income Margin and Return on Equity values compared against S&P 500 index constituents. The weighted SMR value is a proprietary formula developed by Tickeron and represents an overall profitability measure for a stock.
The Tickeron Valuation Rating of (best 1 - 100 worst) indicates that the company is slightly overvalued in the industry. This rating compares market capitalization estimated by our proprietary formula with the current market capitalization. This rating is based on the following metrics, as compared to industry averages: P/B Ratio (6.481) is normal, around the industry mean (4.908). P/E Ratio (41.789) is within average values for comparable stocks, (33.773). Projected Growth (PEG Ratio) (0.913) is also within normal values, averaging (1.351). AAON has a moderately low Dividend Yield (0.005) as compared to the industry average of (0.014). P/S Ratio (3.426) is also within normal values, averaging (2.309).
The Tickeron Profit vs. Risk Rating rating for this company is (best 1 - 100 worst), indicating that the returns do not compensate for the risks. AAON’s unstable profits reported over time resulted in significant Drawdowns within these last five years. A stable profit reduces stock drawdown and volatility. The average Profit vs. Risk Rating rating for the industry is 76, placing this stock better than average.
The Tickeron PE Growth Rating for this company is (best 1 - 100 worst), pointing to worse than average earnings growth. The PE Growth rating is based on a comparative analysis of stock PE ratio increase over the last 12 months compared against S&P 500 index constituents.
The Tickeron Seasonality Score of (best 1 - 100 worst) indicates that the company is slightly overvalued in the industry. The Tickeron Seasonality score describes the variance of predictable price changes around the same period every calendar year. These changes can be tied to a specific month, quarter, holiday or vacation period, as well as a meteorological or growing season.
The Tickeron Price Growth Rating for this company is (best 1 - 100 worst), indicating slightly worse than average price growth. AAON’s price grows at a lower rate over the last 12 months as compared to S&P 500 index constituents.
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General Information
a maker of heating, ventilation and air conditioning equipment
Industry BuildingProducts
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