William Blair reiterates Outperform on AAON stock citing fundamentals

AAON reported Q4 FY2025 revenue of $424.2M, beating consensus $378.08M (+12.2%), but diluted EPS of $0.39 missed $0.45 (-13.33%). Shares slid >15% over two weeks (13% in the past week) to $79.93 (market cap $6.48B) after the EPS/gross-margin miss, yet William Blair and Oppenheimer maintained Outperform ratings and raised price targets (Oppenheimer to $118; InvestingPro range $120–$126). Management expects execution and gross margins to improve through 2026 (current gross margin 26.75% vs 31%+ target); backlog rose 25% sequentially with BASX backlog $1.3B, and the company declared a $0.10 quarterly dividend payable March 30, 2026 (record March 18).

Analysis

AAON’s current setup is less a product-demand story and more an execution-and-mix arbitrage. If management can shift shipboard capacity toward modular / high-ASP data-center and large rooftop custom orders while lifting utilization, incremental revenue converts to gross profit quickly because a large portion of cost is semi-fixed; this creates asymmetric upside through operational gearing over 6–12 months. Conversely, margin recovery depends on sustained pricing discipline — if competitors re-enter the low-margin chase as supply normalizes, unit ASPs could compress even while volumes rise.

Second-order supply-chain effects matter: normalized inputs reduce lead times but also remove a structural pricing tailwind; early-cycle inventory rebuild will temporarily inflate working capital and could depress near-term free cash flow even as backlog grows. Large, concentrated data-center customers introduce cadence risk — a delayed 200–500 MW build can erase a quarter of near-term revenue for a midsized OEM, so monitor order concentration and cancellation clauses closely over the next 3–9 months. Labor and skilled-assembly bottlenecks, not parts, are the likelier limiter on margin recovery once component shortages fade.

Consensus is pricing margin normalization as a binary event; the nuanced path (slow mix shift + modest pricing pressure) implies a multi-quarter patience trade rather than a quick pop. That makes option structures and pair trades superior to naked directional bets: they profit if operational execution improves without requiring instant multiple expansion. Watch two triggers — sequential gross-margin inflection across two quarters and meaningful conversion of backlog into billings — as the signal to de-risk hedges and let equity exposure run.

Key Decisions for Investors

• Buy AAON (AAON) equity sized to conviction with a 6–12 month horizon; target asymmetric upside of +40–60% if margins and mix improve. Protect downside by buying 6-month 10–15% OTM puts (cost ~3–6% of position) to cap losses to ~20–25%.
• Construct a relative-performance pair: long AAON / short Carrier Global (CARR) sized 1:1 by dollar exposure for 3–9 months to isolate execution/mix upside. Rationale: if OEM-specific execution improves, AAON should outpace broader HVAC peers; set a stop if spread widens >15% against the pair.
• Use an options diagonal for leveraged exposure: buy Jan-2027 LEAP calls on AAON and sell 3–6 month covered calls to finance part of the premium. This captures multi-quarter margin recovery while trimming carry cost; target >2x payoff if gross margins sustainably re-rate.
• If margin signals miss over the next two quarters (no sequential gross-margin inflection and backlog conversion stalls), shift to a short or long-put hedge (3–6 month ITM puts) sized to 25–50% of position to protect capital — downside if operational execution fails is 20–35% within months.