Aaon Inc. Rides Record Sales Amid Margin Squeeze

Aaon Inc ((AAON)) has held its Q1 earnings call. Read on for the main highlights of the call.

Aaon Inc.’s latest earnings call struck an upbeat tone as management highlighted record revenue, surging demand and a sharply higher full‑year outlook, even while acknowledging short‑term margin pressure. Executives framed lower profitability as a deliberate trade‑off to seize share, particularly in data‑center cooling, supported by a swelling backlog and strong visibility into future growth.

Record Revenue and Strong Top-Line Growth

Aaon reported net sales of $496.9 million for the first quarter of 2026, a 54% year‑over‑year jump and the highest quarterly revenue in the company’s history. Management lifted its full‑year outlook, now projecting sales growth of 40% to 45% as new capacity and strong demand translate into sustained top‑line momentum.

Earnings and Profitability Expansion (Despite Margin Timing)

Diluted earnings per share climbed 37% from a year earlier to $0.48, underscoring that profit dollars are rising even as some margins compress. Non‑GAAP adjusted EBITDA increased 44% to $78.0 million, though the EBITDA margin slipped to 15.7% from 17.6% as higher costs and outsourcing weighed on profitability.

Exceptional Bookings, Backlog and Book-to-Bill

Bookings stayed ahead of shipments, with a company‑wide book‑to‑bill above 1 and the Basics line exceeding 2, signaling robust order intake. The backlog reached $2.1 billion, more than double last year and marking a sixth straight quarter at record levels, giving Aaon unusually strong revenue visibility.

Basics Segment Demand and Share Gains

The Basics business remains the standout growth engine, supported by rapid expansion in data‑center thermal markets estimated at roughly 30%. Basics branded sales rose 72% year over year, segment sales doubled to $135.4 million and the Basics backlog climbed 160% from a year ago and 24% sequentially, suggesting significant market share gains.

AAON Branded Sales Momentum

Core AAON branded products also delivered healthy gains, with sales up 42% year over year and 11% sequentially as demand broadened beyond data centers. Bookings increased about 9% versus last year and roughly 15% on a trailing 12‑month basis, while the AAON backlog grew 26% year over year even as it dipped 3% from the prior quarter.

Operational Throughput and Capacity Ramp

New and expanded facilities in Memphis, Longview and Redmond allowed Aaon to push more units through its plants, enabling record Basics sales across all three sites. Management expects production to continue ramping through the second and third quarters as learning curves improve and internal capacity increasingly replaces outsourced volume.

Improving Cash Generation and Leverage

Operating cash flow swung positive, reaching $34 million in the quarter versus a $9.2 million use of cash a year earlier, reflecting improved working capital management. The company ended the period with leverage of 1.71 times and total debt of $425.2 million, a modest improvement from prior levels despite heavy capital spending.

Management and Strategic Execution

Executives emphasized that earlier investments in people, supply chains and lean manufacturing are now shifting from build‑out to execution, supporting higher volumes and faster deliveries. Aaon also introduced a new chief financial officer tasked with tightening margin discipline, sharpening working capital performance and upgrading the finance organization as the business scales.

Near-Term Margin Pressure

Despite strong growth, gross margin slipped to 25.1% from 26.8% a year ago as the company leaned on outsourcing and faced cost inflation. Management framed these headwinds as temporary, arguing they reflect conscious choices to meet demand quickly and will ease as internal operations absorb more of the load.

Segment Margin Weakness and Overhead Impact

In the Oklahoma operations, reported gross margin was 26.3%, but would have been 29.6% without $9.8 million of overhead tied to Memphis expansion. Even so, management noted that Oklahoma margins remain below the high‑30s historical range because of elevated outsourcing, tariffs and inflation, which they aim to reverse over time.

Coil Products Margin Decline

The coil products segment faced sharper pressure, with gross margin falling to 24.1% from 31.8% a year earlier as volumes and mix shifted. Output of coils used in AAON‑branded equipment dropped roughly 12%, and management signaled that restoring efficiency and throughput in this segment is a priority for recovering profitability.

Reduced EBITDA Margin and Higher SG&A Dollars

While adjusted EBITDA dollars rose, the margin narrowed due to higher costs and growth‑related spending, including headcount and systems. SG&A expenses increased 32% to $67.9 million, though as a percentage of sales they fell by 220 basis points to 13.7%, suggesting operating leverage as revenue expands.

Low Cash Balance at Quarter End

The one glaring balance‑sheet weak spot was cash, which stood at just $1.1 million at quarter end despite active operations and sizable debt. Management pointed to strong operating cash flow and access to financing, but investors will watch closely to ensure liquidity keeps pace with capital needs.

Reliance on Temporary Outsourcing and Ramp Inefficiencies

Aaon openly acknowledged that it is relying on temporary outsourcing and tolerating ramp‑up inefficiencies to prioritize growth and on‑time delivery. The strategy is weighing on margins in the short run and assumes that internal capacity will be brought on line smoothly, creating some execution risk if the ramp is delayed or more costly than planned.

Tariff and Input-Cost Surcharge Effects

Tariff‑related surcharges and broader inflation further diluted margins during the quarter, compounding the cost of outsourcing. Management indicated that pricing actions have been taken and are embedded in the backlog, suggesting some of these input‑cost pressures should be offset as new orders flow through to revenue.

Forward Guidance and Margin Path

Looking ahead, Aaon reiterated a robust 2026 outlook calling for 40% to 45% revenue growth, supported by a $2.1 billion backlog and book‑to‑bill above 1 overall and above 2 in Basics. The company expects gross margin to improve to 27% to 28%, with SG&A at 14% to 15% of sales and depreciation and amortization of $95 million to $100 million, as internal capacity ramps, outsourcing is reduced and temporary cost pressures recede.

Aaon’s earnings call painted the picture of a company in full growth mode, trading some near‑term margin strength for scale, speed and share gains in high‑value niches such as data‑center cooling. Investors will need to monitor execution on the capacity ramp and margin recovery, but for now the story is one of record revenue, expanding demand and a management team confident in its path to stronger profitability.