AAON Data Center Sales Boost Backlog

AAON reported Q2 2025 net sales down 0.6% to $311.6 million and gross margin contracting 950 basis points to 26.6%, attributing the underperformance and lowered full-year guidance to significant production disruptions from its ERP implementation. Despite these near-term operational challenges, the company showcased robust underlying demand, with Basics branded data center sales surging 127% in Q2 and overall backlog growing 72% year-over-year. Management anticipates operational normalization and margin recovery in 2026 as ERP transitions complete and the Memphis facility scales, reiterating a long-term gross margin target of 32-35%.

Analysis

AAON's second-quarter 2025 results present a stark contrast between severe near-term operational failures and a robust long-term demand outlook. A significant ERP implementation failure at the Longview facility, which cut production rates by as much as 50% initially, directly caused the 0.6% year-over-year decline in net sales to $311.6 million and a 950 basis point contraction in gross margin to 26.6%. These disruptions have prompted a reduction in full-year 2025 guidance, signaling that execution headwinds will persist. Despite these internal challenges, underlying demand is exceptionally strong, evidenced by a 72% year-over-year surge in the company's backlog. This growth is propelled by the data center vertical, where Basics branded sales increased 127% in Q2, with liquid cooling solutions for AI representing 40% of year-to-date sales in that segment. Management's recovery strategy hinges on stabilizing operations and scaling the new Memphis facility, which is expected to double Basics' manufacturing capacity. While the full ERP rollout is not expected to be complete until year-end 2026, management has reiterated a long-term gross margin target of 32%-35%, framing the current challenges as transitory before a significant margin and profit inflection in 2026.

Key Decisions for Investors

• Investors should weigh the significant near-term execution risk, reflected in the lowered 2025 guidance and production disruptions, against the compelling long-term growth story driven by a 72% backlog increase and strong positioning in the AI data center market.
• Monitor key operational metrics in subsequent quarters, specifically sequential improvements in gross margin and management commentary on production normalization at the Longview and Tulsa facilities, as confirmation that the turnaround is on track.
• Given the stated timeline for a full recovery extending to 2026, consider the current situation a 'show-me' story, where potential entry or position increases might be best timed after concrete evidence of stabilizing operations and margin recovery materializes.