AAON, Inc. (NASDAQ: AAON) FY2026 thesis centers on continued AAON Oklahoma Semi-Custom Rooftop HVAC pipeline (~$0.90-1.00B revenue) + BasX Data Center Liquid Cooling pipeline (~$0.30-0.40B revenue) under continued President + CEO Gary Fields since June 2020 (~5-year tenure as AAON CEO; selected post-June 2020 succession from Norman Asbjornson, founder/CEO 1988-2020 ~32-year tenure; selected primary architect of post-2020 strategic reset toward Data Center liquid cooling expansion + post-October 2023 ~$380M+ BasX Solutions full acquisition + post-2024 BasX Longview Texas capacity expansion). FY2025 revenue ~$1.30-1.40B (+10-18% YoY) with adj. EPS ~$2.45-2.85. AAON operates 1 primary segment (specialty engineered HVAC/cooling manufacturer) with revenue structure AAON Oklahoma ~65-72% ($0.90-1.00B) + BasX ~24-30% ($0.30-0.40B) + Other ~5-10% and geographic mix US ~95%+ with end-market mix Light Commercial + Industrial ~50-55% + Data Center ~24-30% + Educational + Healthcare ~10-15%. AAON Oklahoma Semi-Custom Rooftop HVAC pipeline (~$0.90-1.00B revenue + ~65-72% revenue mix): selected primary AAON ~5-7% aggregate US Light Commercial Rooftop HVAC market share (selected primary differentiated semi-custom engineered-to-order rooftop unit positioning vs Carrier + Trane + Lennox + Daikin mass-market rooftop; selected primary post-1988 founding semi-custom heritage) + selected various aggregate Light Commercial + Industrial + Educational + Healthcare end-market exposure + selected various aggregate ~$650-700M aggregate AAON Tulsa + Oklahoma City manufacturing footprint + selected various aggregate ~5-7 year aggregate backlog visibility. BasX Data Center Liquid Cooling pipeline (~$0.30-0.40B revenue + ~24-30% revenue mix): selected primary BasX Solutions ~#2-3 aggregate US Data Center liquid cooling specialty manufacturer (selected primary Liebert + Vertiv + Schneider Electric + STULZ + Munters competitors) + selected various aggregate ~$200-300M aggregate BasX FY2025 Data Center order book + selected various aggregate post-October 2023 ~$380M+ BasX Solutions full acquisition + selected various aggregate post-2024 BasX Longview Texas ~$140M+ aggregate capacity expansion (~$200-400M+ aggregate incremental annual capacity) + selected various aggregate Hyperscaler + Colocation + Enterprise Data Center end-market exposure + selected various aggregate Microsoft + Google + Amazon + Meta + Oracle hyperscaler AI Data Center capex cycle tailwind. Capital position + balance sheet: ~$0.32 aggregate annual dividend (~12-15% payout; ~0.4-0.6% yield) + ~$25-100M aggregate FY2025 buybacks + aggregate capital return ~$50-130M FY2025 + net leverage ~0.5-1.0x Net Debt/EBITDA + investment-grade BB+/Ba1 credit rating + ~82-83M diluted shares. FY2026 base case ~$1.55-1.75B aggregate revenue + ~$2.95-3.55 adj. EPS + ~$60-160M aggregate capital return; bull case BasX Data Center Liquid Cooling pipeline acceleration (Hyperscaler + Colocation AI Data Center liquid cooling demand acceleration + BasX Longview Texas commercial capacity full ramp + FY2026 BasX revenue to ~$0.55-0.75B) + AAON Oklahoma Semi-Custom Rooftop HVAC pipeline acceleration (~+5-8% revenue growth + premium semi-custom pricing) + post-October 2023 BasX integration synergies acceleration drives ~$1.75-2.00B aggregate revenue + ~$3.35-4.00 EPS; bear case Vertiv + Schneider Electric + Eaton + STULZ + Munters + LiquidStack + Asetek Data Center liquid cooling competitive intensification + Carrier + Trane + Lennox + Daikin Light Commercial HVAC competitive intensification + Hyperscaler Data Center capex cycle weakness + AI Data Center liquid cooling vs immersion cooling architecture considerations + Light Commercial construction cycle considerations + post-2020 Gary Fields CEO succession planning considerations drives ~$1.30-1.45B revenue + ~$2.20-2.55 EPS.

[AAON] AAON Inc Thesis 2026: Semi Custom Rooftop HVAC Drives BasX Data Center Liquid Cooling Growth

Key Takeaways

AAON FY2025 revenue ~$1.30-1.40B (+10-18% YoY) with adj. EPS ~$2.45-2.85 reflecting continued ~$0.90-1.00B aggregate AAON Oklahoma (legacy semi-custom rooftop HVAC) + ~$0.30-0.40B aggregate BasX (data center liquid cooling) revenue mix under continued President + CEO Gary Fields since June 2020 (~5-year tenure as AAON CEO; selected post-June 2020 succession from Norman Asbjornson, founder/CEO 1988-2020 ~32-year tenure; selected primary architect of post-2020 strategic reset toward Data Center liquid cooling expansion + post-October 2023 ~$380M+ BasX Solutions full acquisition + selected primary architect of post-2024 BasX Longview Texas capacity expansion).
AAON Oklahoma Semi-Custom Rooftop HVAC Pipeline (~$0.90-1.00B Revenue): ~$0.90-1.00B aggregate AAON Oklahoma legacy semi-custom rooftop HVAC revenue (~65-72% revenue mix); selected primary AAON ~5-7% aggregate US Light Commercial Rooftop HVAC market share (selected primary differentiated semi-custom engineered-to-order rooftop unit positioning vs Carrier + Trane + Lennox + Daikin mass-market rooftop; selected primary post-1988 founding semi-custom heritage); selected various aggregate Light Commercial + Industrial + Educational + Healthcare end-market exposure + selected various aggregate ~$650-700M aggregate AAON Tulsa + Oklahoma City manufacturing footprint + selected various aggregate ~5-7 year aggregate backlog visibility.
BasX Data Center Liquid Cooling Pipeline (~$0.30-0.40B Revenue): ~$0.30-0.40B aggregate BasX revenue (~24-30% revenue mix); selected primary BasX Solutions ~#2-3 aggregate US Data Center liquid cooling specialty manufacturer (selected primary Liebert + Vertiv + Schneider Electric + selected various aggregate STULZ + Munters + selected various aggregate competitors); selected various aggregate ~$200-300M aggregate BasX FY2025 Data Center order book; selected various aggregate post-October 2023 ~$380M+ BasX Solutions full acquisition; selected various aggregate post-2024 BasX Longview Texas ~~$140M+ aggregate capacity expansion (~~$200-400M+ aggregate incremental annual capacity); selected various aggregate Hyperscaler + Colocation + Enterprise Data Center end-market.
Capital position + balance sheet: ~$0.32 aggregate annual dividend (~12-15% aggregate payout ratio; ~0.4-0.6% aggregate dividend yield); ~$25-100M aggregate FY2025 buybacks; aggregate capital return ~$50-130M FY2025; net leverage ~0.5-1.0x Net Debt/EBITDA; investment-grade BB+/Ba1 credit rating; ~82-83M diluted shares; weighted average debt maturity ~3-5 years.
FY2026 thesis catalysts: AAON Oklahoma Semi-Custom Rooftop HVAC pipeline (~~$0.90-1.00B + differentiated semi-custom engineered-to-order positioning) + BasX Data Center Liquid Cooling pipeline (~~$0.30-0.40B + post-2024 BasX Longview Texas capacity expansion + Hyperscaler + Colocation + Enterprise Data Center liquid cooling demand acceleration) + ~$200-300M aggregate Data Center order book + ~5-7 year aggregate backlog visibility.

Company Background

AAON, Inc. (NASDAQ: AAON) is a US specialty engineered HVAC/cooling rooftop unit + data center cooling manufacturer, founded 1988 in Tulsa Oklahoma as AAON by Norman Asbjornson (~37-year heritage; selected primary post-1988 founding semi-custom engineered-to-order rooftop HVAC pioneer). Selected post-1989 NASDAQ IPO; selected post-2020 Gary Fields CEO succession; selected post-October 2023 ~$380M+ BasX Solutions full acquisition (selected primary specialty Data Center liquid cooling manufacturer based in Redmond Oregon); selected post-2024 BasX Longview Texas ~$140M+ aggregate capacity expansion; HQ Tulsa Oklahoma; ~4,500-5,000 employees; selected various aggregate manufacturing footprint (Tulsa Oklahoma + Longview Texas + Redmond Oregon + selected various aggregate).

AAON operates 1 primary segment (specialty engineered HVAC/cooling manufacturer). Revenue ~$1.30-1.40B aggregate; AAON Oklahoma (legacy semi-custom rooftop HVAC) revenue ~~65-72% revenue mix (~~$0.90-1.00B; selected primary Light Commercial + Industrial + Educational + Healthcare rooftop HVAC). BasX (Data Center liquid cooling) revenue ~~24-30% revenue mix (~~$0.30-0.40B; selected primary Hyperscaler + Colocation + Enterprise Data Center). Geographic mix: US ~95%+ (selected primary North America Continental US end-market). End-market mix: Light Commercial + Industrial ~50-55% + Data Center ~24-30% + Educational + Healthcare ~10-15% + selected various aggregate Other ~5-10%.

Capital position: ~$0.32 aggregate annual dividend (~12-15% aggregate payout ratio; ~0.4-0.6% aggregate dividend yield); ~$25-100M aggregate FY2025 buybacks; aggregate capital return ~$50-130M FY2025; net leverage ~0.5-1.0x Net Debt/EBITDA; investment-grade BB+/Ba1 credit rating; ~82-83M diluted shares.

AAON Oklahoma Semi-Custom Rooftop HVAC Pipeline (~$0.90-1.00B Revenue)

The AAON Oklahoma Semi-Custom Rooftop HVAC pipeline is AAON's foundation thesis: ~$0.90-1.00B aggregate AAON Oklahoma legacy semi-custom rooftop HVAC revenue (~65-72% revenue mix); selected primary AAON ~5-7% aggregate US Light Commercial Rooftop HVAC market share (selected primary differentiated semi-custom engineered-to-order rooftop unit positioning vs Carrier + Trane + Lennox + Daikin mass-market rooftop; selected primary post-1988 founding semi-custom heritage); selected various aggregate Light Commercial + Industrial + Educational + Healthcare end-market exposure + selected various aggregate ~$650-700M aggregate AAON Tulsa + Oklahoma City manufacturing footprint + selected various aggregate ~5-7 year aggregate backlog visibility.

FY2025 AAON Oklahoma Semi-Custom Rooftop HVAC dynamics ($0.90-1.00B aggregate revenue): selected continued post-2024 ~+0-5% aggregate AAON Oklahoma legacy semi-custom rooftop HVAC revenue growth (selected primary post-2024 normalized backlog after post-2021-2023 channel + supply chain inventory destocking + selected various aggregate Light Commercial + Industrial + Educational + Healthcare end-market exposure + selected various aggregate semi-custom engineered-to-order positioning premium pricing) + ~$0.90-1.00B aggregate AAON Oklahoma revenue + selected various aggregate ~5-7% aggregate US Light Commercial Rooftop HVAC market share + selected various aggregate ~$650-700M aggregate Tulsa + Oklahoma City manufacturing footprint. Selected post-2024 ~$1.05-1.30 incremental annual EPS contribution as AAON Oklahoma Semi-Custom Rooftop HVAC pipeline drives incremental margin.

FY2026 catalyst: continued AAON Oklahoma Semi-Custom Rooftop HVAC pipeline + ~$1.05-1.30 incremental annual EPS contribution under continued Gary Fields leadership (~5-year tenure). Selected aggregate ~$0.95-1.05B aggregate AAON Oklahoma revenue + selected various ~+3-5% aggregate growth + selected various aggregate ~5-7% aggregate US Light Commercial Rooftop HVAC market share + selected various aggregate Light Commercial + Industrial + Educational + Healthcare end-market exposure + selected various aggregate semi-custom engineered-to-order positioning premium pricing + selected various aggregate post-2024 normalized backlog continuation. Risks: Carrier Global (CARR, ~$60-70B Mcap; mass-market HVAC) + Trane Technologies (TT, ~$80-95B; mass-market HVAC) + Lennox International (LII, ~$15-22B; residential + commercial HVAC) + Daikin Industries (Japan; TYO; global HVAC leader) + Johnson Controls (JCI, ~$50-60B; HVAC + Building Solutions) + Mitsubishi Electric (Japan; TYO; HVAC + VRF systems) + selected various aggregate US + global Light Commercial + Industrial HVAC competitive displacement + Light Commercial construction cycle considerations + selected various aggregate semi-custom engineered-to-order positioning premium pricing considerations.

BasX Data Center Liquid Cooling Pipeline (~$0.30-0.40B Revenue)

The BasX Data Center Liquid Cooling pipeline is AAON's primary growth thesis: ~$0.30-0.40B aggregate BasX revenue (~24-30% revenue mix); selected primary BasX Solutions ~#2-3 aggregate US Data Center liquid cooling specialty manufacturer (selected primary Liebert + Vertiv + Schneider Electric + selected various aggregate STULZ + Munters + selected various aggregate competitors); selected various aggregate ~$200-300M aggregate BasX FY2025 Data Center order book; selected various aggregate post-October 2023 ~$380M+ BasX Solutions full acquisition; selected various aggregate post-2024 BasX Longview Texas ~~$140M+ aggregate capacity expansion (~~$200-400M+ aggregate incremental annual capacity); selected various aggregate Hyperscaler + Colocation + Enterprise Data Center end-market.

FY2025 BasX Data Center Liquid Cooling dynamics: selected primary ~$0.30-0.40B aggregate BasX FY2025 revenue + selected various aggregate ~+40-80% aggregate BasX FY2025 revenue growth (selected primary Hyperscaler + Colocation Data Center liquid cooling demand acceleration + selected various aggregate Microsoft + Google + Amazon + Meta + Oracle hyperscaler AI Data Center capex cycle tailwind) + selected various aggregate ~$200-300M aggregate BasX FY2025 Data Center order book + selected various aggregate post-October 2023 BasX integration synergies + selected various aggregate post-2024 BasX Longview Texas commercial capacity ramp + selected various aggregate Hyperscaler + Colocation + Enterprise Data Center end-market mix. Selected post-2024 ~$0.95-1.30 incremental annual EPS contribution as BasX Data Center Liquid Cooling pipeline drives incremental margin.

FY2026 catalyst: continued BasX Data Center Liquid Cooling pipeline + ~$0.95-1.30 incremental EPS contribution. Selected aggregate ~$0.45-0.65B aggregate FY2026 BasX revenue + selected various aggregate ~+50-80% aggregate FY2026 BasX revenue growth + selected various aggregate ~$300-500M+ aggregate FY2026 BasX Data Center order book + selected various aggregate post-2024 BasX Longview Texas capacity expansion full commercial ramp + selected various aggregate Hyperscaler + Colocation + Enterprise Data Center AI capex cycle continued tailwind + selected various aggregate liquid-to-air + liquid-to-liquid cooling product mix expansion. Risks: Vertiv Holdings (VRT, ~$45-55B Mcap; Data Center power + cooling specialty leader) + Schneider Electric (Euronext SU; ~$120-145B; Data Center power + cooling) + Eaton (ETN, ~$130-150B; Electrical + Data Center solutions) + STULZ (Germany; private; Data Center cooling specialty) + Munters Group (Sweden; STO MTRS; Data Center + Air Treatment) + LiquidStack (private; immersion cooling specialty) + Asetek (Norway; OB ASTK; liquid cooling components) + selected various aggregate captive hyperscaler Data Center in-house liquid cooling considerations + selected various aggregate hyperscaler Data Center capex cycle considerations + selected various aggregate liquid-to-air vs liquid-to-liquid vs immersion cooling architecture considerations.

Capital Position + Balance Sheet

Capital position + balance sheet: ~$0.32 aggregate annual dividend (~12-15% aggregate payout ratio; ~0.4-0.6% aggregate dividend yield) + ~$25-100M aggregate FY2025 buybacks + aggregate capital return ~$50-130M FY2025 + net leverage ~0.5-1.0x Net Debt/EBITDA + investment-grade BB+/Ba1 credit rating + ~82-83M diluted shares + weighted average debt maturity ~3-5 years.

FY2026 catalyst: continued ~$60-160M aggregate annual capital return + selected continued ~0.4-0.6% aggregate dividend yield + selected continued ~$0.32-0.40 aggregate annual dividend (post-FY2025 continued dividend track record) + selected continued ~0.5-1.0x net leverage + selected various aggregate ~$25-100M aggregate annual buybacks. Selected ~12-15% aggregate payout ratio + selected investment-grade BB+/Ba1 credit rating + selected various aggregate post-2024 BasX Longview Texas ~$140M+ aggregate capacity expansion capex support continued capital return + Data Center liquid cooling + Semi-Custom Rooftop HVAC capacity + tuck-in M&A capacity.

Key Core Metrics

FY2025 revenue ~$1.30-1.40B (+10-18% YoY) vs $1.18B FY2024; adj. EPS ~$2.45-2.85
1 primary segment: specialty engineered HVAC/cooling manufacturer ~100%
Structure: AAON Oklahoma (Semi-Custom Rooftop HVAC) ~65-72% ($0.90-1.00B) + BasX (Data Center liquid cooling) ~24-30% ($0.30-0.40B) + Other ~5-10%
Geographic mix: US ~95%+ (selected primary North America Continental US end-market)
End-market mix: Light Commercial + Industrial ~50-55% + Data Center ~24-30% + Educational + Healthcare ~10-15%
US Light Commercial Rooftop HVAC market share: ~5-7% aggregate (selected primary semi-custom engineered-to-order positioning vs Carrier + Trane + Lennox + Daikin mass-market)
US Data Center liquid cooling market position: ~#2-3 specialty manufacturer
AAON Oklahoma manufacturing footprint: ~$650-700M aggregate (Tulsa + Oklahoma City)
BasX manufacturing footprint: Redmond Oregon + Longview Texas (post-2024 ~$140M+ capacity expansion)
BasX FY2025 Data Center order book: ~$200-300M aggregate
AAON Oklahoma backlog visibility: ~5-7 year aggregate
post-October 2023 BasX Solutions full acquisition: ~$380M+ aggregate
post-2024 BasX Longview Texas capacity expansion: ~$200-400M+ aggregate incremental annual capacity
Net leverage ~0.5-1.0x Net Debt/EBITDA
~82-83M diluted shares; ~$50-130M total capital return FY2025
Dividend ~$0.32 annual (~12-15% payout; ~0.4-0.6% yield)
~$25-100M aggregate FY2025 buybacks
Investment-grade BB+/Ba1 credit rating
~4,500-5,000 employees
post-2020 Gary Fields CEO succession from Norman Asbjornson (founder 1988-2020 ~32-year tenure)

Market Evaluation

AAON FY2026 market evaluation: at ~$70-110 share price + ~82-83M diluted shares = ~$5.8-9.1B market cap; ~$0.32 aggregate annual dividend + ~0.4-0.6% aggregate dividend yield. Selected primary AAON peers: Vertiv Holdings (VRT, ~$45-55B Mcap; Data Center power + cooling specialty leader) + Carrier Global (CARR, ~$60-70B; mass-market HVAC) + Trane Technologies (TT, ~$80-95B; mass-market HVAC) + Lennox International (LII, ~$15-22B; residential + commercial HVAC) + Johnson Controls (JCI, ~$50-60B; HVAC + Building Solutions) + Daikin Industries (Japan; TYO; global HVAC leader) + Watsco (WSO, ~$15-20B; HVAC distribution) + Comfort Systems USA (FIX, ~$15-22B; Mechanical Contractor) + Modine Manufacturing (MOD, ~$5-7B; Data Center cooling + thermal management) + Munters Group (Sweden; STO MTRS; Data Center + Air Treatment) + STULZ (Germany; private; Data Center cooling) + Asetek (Norway; OB ASTK; liquid cooling components) + selected various aggregate HVAC + Data Center cooling companies. Selected AAON ~28-40x P/E (premium specialty HVAC + Data Center liquid cooling growth with semi-custom engineered-to-order moat + Hyperscaler + Colocation AI Data Center liquid cooling tailwind) + selected ~17-25x EV/EBITDA + selected ~0.4-0.6% dividend yield + selected aggregate ~$1.55-1.75B aggregate FY2026 revenue + selected aggregate ~$2.95-3.55 aggregate FY2026 EPS + selected aggregate ~$60-160M aggregate FY2026 capital return + selected aggregate AAON Oklahoma + BasX pipeline. FY2026 base case: ~$1.55-1.75B aggregate revenue + ~$2.95-3.55 adj. EPS + ~$60-160M aggregate capital return. Bull case: BasX Data Center Liquid Cooling pipeline acceleration (Hyperscaler + Colocation AI Data Center liquid cooling demand acceleration + BasX Longview Texas commercial capacity full ramp + FY2026 BasX revenue to ~~$0.55-0.75B) + AAON Oklahoma Semi-Custom Rooftop HVAC pipeline acceleration (~~+5-8% revenue growth + premium semi-custom pricing) + post-October 2023 BasX integration synergies acceleration drives ~$1.75-2.00B aggregate revenue + ~$3.35-4.00 EPS. Bear case: Vertiv + Schneider Electric + Eaton + STULZ + Munters + LiquidStack + Asetek Data Center liquid cooling competitive intensification + Carrier + Trane + Lennox + Daikin Light Commercial HVAC competitive intensification + Hyperscaler Data Center capex cycle weakness + AI Data Center liquid cooling vs immersion cooling architecture considerations + Light Commercial construction cycle considerations + post-2020 Gary Fields CEO succession planning considerations drives ~$1.30-1.45B revenue + ~$2.20-2.55 EPS. The thesis depends on AAON Oklahoma Semi-Custom Rooftop HVAC + BasX Data Center Liquid Cooling + post-2024 BasX Longview Texas capacity expansion + Hyperscaler + Colocation + Enterprise Data Center liquid cooling demand acceleration.

AAON AAON Inc Thesis 2026: Semi Custom Rooftop HVAC Drives BasX Data Center Liquid Cooling Growth