AAON (AAON) Q2 2026: Net Sales Double on 216% BASX Growth, Margin Pressure from Capacity Ramp
AAON delivered record quarterly revenue driven by rapid BASX segment expansion and strong backlog conversion. Margin compression reflects the operational costs of scaling new manufacturing capacity, particularly the Memphis facility. Management’s updated outlook anticipates margin recovery in the second half supported by pricing and productivity gains.
Summary
- Capacity-Driven Growth: Rapid scale-up of BASX liquid cooling production accelerated revenue but pressured margins.
- Backlog Conversion Focus: Elevated backlog nearly doubled year-over-year, underpinning strong near-term revenue visibility.
- Margin Recovery Path: Pricing actions and operational improvements are expected to drive margin expansion in H2 2026 and beyond.
Business Overview
AAON is a leading manufacturer of highly engineered HVAC (heating, ventilation, and air conditioning) solutions for commercial, industrial, and data center applications. It operates primarily through three segments: AAON Oklahoma, which focuses on commercial HVAC products; AAON Coil Products, including BASX-branded liquid cooling solutions for data centers; and BASX, a rapidly growing segment specializing in custom-engineered data center cooling systems. Revenue is generated through sales of these branded HVAC products, with a strategic emphasis on serving growing data center infrastructure demand.
Performance Analysis
In Q2 2026, AAON reported net sales of $627 million, more than doubling the prior-year quarter, driven by a 216% surge in BASX segment sales to $218 million and a 40% increase in AAON Oklahoma sales to $262 million. This robust growth was fueled by accelerating production throughput and expanded manufacturing capacity, notably the Memphis facility, which contributed significantly to volume gains. The company’s backlog nearly doubled year-over-year to $2.0 billion, reflecting strong customer demand and providing solid revenue visibility.
Despite strong top-line growth, gross margin contracted to 24.3% from 26.6% a year earlier. This margin pressure stemmed primarily from the ramp-up costs of new capacity, including overhead expenses at Memphis, inflationary cost pressures, outsourcing, and price-cost timing mismatches. AAON Coil Products also experienced margin compression due to freight and inflationary pressures, although operational improvements partially offset these headwinds. SG&A expenses as a percentage of sales declined by 570 basis points to 13.3%, demonstrating effective operating leverage amid rapid revenue growth.
- Segment Dynamics: BASX’s 220% revenue growth and 30% gross margin underscore its critical role in AAON’s expansion, despite incremental investments diluting near-term margins.
- Operational Leverage: SG&A leverage reflects disciplined cost management supporting profitability as the company scales.
- Cash Flow Improvement: Operating cash flow turned positive to $55 million year-to-date, reversing prior-year cash burn and reflecting improved working capital efficiency.
Overall, AAON’s performance reflects a company in rapid growth mode, balancing volume expansion with margin headwinds typical of capacity ramp phases. Management’s focus on converting backlog efficiently and improving operational metrics positions the company for margin recovery ahead.
Executive Commentary
"Our second quarter results demonstrate the continued strength of demand for our solutions and the progress we are making scaling the company to meet that demand. Net sales increased 101.2% to a fourth consecutive quarterly record... The investments we have made in capacity, leadership, supply chain, and manufacturing infrastructure are translating into measurable operating progress."
Matt Tobolski, President and CEO
"Gross margin was 24.3%, down from 26.6% in the second quarter of 2025. Results reflected the impact of ramping recently added manufacturing capacity, including the Memphis facility, along with inflationary cost pressures. As throughput and utilization continue to increase, productivity improves and better price backlog is converted, there is clear sight into gross margin improvement in the coming quarters."
Andy Chung, CFO
Strategic Positioning
1. Accelerated BASX Capacity Expansion
AAON’s BASX segment, specializing in data center liquid cooling, grew sales by over 220%, driven by increased production at the new Memphis facility. The rapid ramp has enabled faster backlog conversion and market share gains but has also introduced margin pressure from overhead and outsourcing costs. This capacity build-out is central to AAON’s strategy to capitalize on the expanding data center infrastructure market, which is growing around 30% annually.
2. Backlog as a Growth and Margin Lever
With total backlog nearly doubling year-over-year to $2.0 billion, AAON has strong revenue visibility. The BASX backlog increased 185%, reflecting robust demand and customer confidence. Efficient backlog conversion is a strategic priority, as it supports volume growth and margin improvement through better price-cost realization embedded in newer orders.
3. Margin Improvement Initiatives
Management is focused on margin expansion through higher utilization of new capacity, productivity enhancements, sourcing improvements, and pricing actions. While Q2 margins were pressured by ramp-related costs and inflation, the company expects sequential improvement in H2 2026, with Q4 weighted for the most significant gains. Pricing actions taken late last year are beginning to flow through, particularly in the AAON Oklahoma segment.
4. Operational and Organizational Investments
AAON has invested heavily in leadership, supply chain sophistication, lean manufacturing, and operational excellence programs. These investments aim to provide forward-looking visibility and actionable insights, enabling more timely pricing and cost management decisions. The company is building an operating platform designed to sustain rapid growth with improved profitability over time.
5. Diversification and Market Penetration
Beyond expanding existing customer relationships, AAON is diversifying its customer base across its product portfolio, including liquid cooling, airside, and chiller products. This broad engagement supports resilience and growth potential across multiple end markets, reducing dependency on any single product or customer segment.
Key Considerations
AAON’s Q2 results underscore the challenges and opportunities of scaling a capital-intensive manufacturing business in a dynamic market.
- Capacity Ramp Impact: The Memphis facility’s rapid scale-up is a double-edged sword, driving volume growth but pressuring margins temporarily.
- Backlog Management: Backlog growth and conversion efficiency are critical to sustaining revenue momentum and improving margins.
- Pricing Discipline: Recent pricing actions are beginning to offset inflationary pressures, but timely execution remains essential.
- Supply Chain Resilience: Proactive sourcing and vertical integration, such as fan manufacturing, help mitigate market-wide supply constraints.
- Operational Maturity: Investments in organizational sophistication aim to improve forecast accuracy and decision-making agility amid rapid growth.
Risks
Key risks include potential supply chain disruptions, inflationary cost volatility, and the inherent lumpiness of large data center orders impacting backlog and bookings timing. The ongoing ramp of new capacity carries execution risk that could delay margin recovery. Additionally, softer commercial HVAC market conditions could temper growth in the AAON Oklahoma segment. Management’s cautious stance on supply chain and operational pressures reflects awareness of these risks.
Forward Outlook
For Q3 2026, AAON expects continued strong sales growth supported by backlog conversion and capacity utilization improvements. Management anticipates modest sequential margin improvement in Q3, with more pronounced gains in Q4 driven by pricing, productivity, and operating leverage.
- Full-year 2026 net sales growth guidance raised to 55%-60%.
- Gross margin expected in the 25%-26% range, down from prior 27%-28% estimate due to ramp costs.
- SG&A expenses forecasted at 13%-14% of sales, reflecting operating leverage.
- Depreciation and amortization expense projected between $95 million and $100 million.
Management emphasizes that the backlog being converted in the second half carries a more favorable margin profile, supporting confidence in margin trajectory into 2027.
Takeaways
AAON’s Q2 performance illustrates the operational challenges of scaling rapidly in a capital-intensive, highly engineered product market, balanced by strong demand and backlog visibility.
- Growth Engine: BASX’s explosive revenue growth and backlog expansion validate AAON’s strategic focus on data center cooling solutions, positioning it well in a fast-growing market.
- Margin Dynamics: While gross margin compression is a near-term consequence of capacity ramp and inflation, management’s detailed margin improvement plan and backlog pricing actions provide a clear path to recovery.
- Execution Focus: Investments in operational excellence and supply chain resilience are critical to sustaining throughput gains and managing cost pressures amid ongoing growth.
Conclusion
AAON’s record Q2 results reflect successful execution of its growth strategy, particularly in the BASX segment, supported by strong backlog and capacity expansion. Although margin pressures persist due to ramp costs and inflation, management’s disciplined focus on pricing and productivity sets the stage for margin improvement in the second half and into 2027. Investors should monitor backlog conversion trends and margin progression as key indicators of sustainable earnings power.
Industry Read-Through
AAON’s performance highlights broader HVAC industry trends, including the critical role of data center infrastructure investment driving demand for specialized cooling solutions. The company’s ability to rapidly scale production capacity amid supply chain constraints offers a case study in operational agility. Its margin pressures from capacity ramp mirror challenges faced by peers expanding into high-growth segments. The emphasis on backlog management and pricing discipline underscores the importance of operational sophistication in navigating inflationary environments. Other HVAC and industrial equipment manufacturers should watch AAON’s margin recovery trajectory and capacity utilization as indicators of sector resilience and execution effectiveness.