AAON Inc (AAON)

Investment Committee Summary

Investment Thesis

AAON engineers, manufactures and sells heating and air-conditioning equipment in the United States and Canada — largely semi-custom units sold into commercial and industrial buildings, where the order book rather than the shelf sets the pace. At $86.16 on 10 October 2026 the shares carry a forward multiple of 37 against an operating margin near 11% (reported GAAP, TTM to Jun 2026) and net debt of ~$0.5B, which is a growth-equipment rating applied to a business whose end demand is construction. The engine's own anchors disagree by an unusually wide margin here, and a reader should treat that spread as part of the message: the probability-weighted target of $128 sits above the quote while the triangulated fair value of $97.86 sits below it (+14%), and the BUY is the compromise between them. The deciding variable is mix — whether demand from data-centre cooling and electrification retrofits grows fast enough to outrun the ordinary non-residential and repair-remodel cycle. The most damaging risk is that the exposure sits in the multiple rather than in the earnings: on a forward multiple of 37, an ordinary year, not a bad one, is enough to de-rate the shares.

Narrative drafted 2026-08-16 by claude-opus-5 under supervision; reviewed by Marinus 2026-08-16.

The dashboard below is the whole argument on one page: spot ($86.16) against each valuation anchor, the scenario tree, technicals and the options-implied move.

Anti-Thesis (The Real Bear Case)

The bear mechanism is a construction-demand reset arriving while the stock is priced for scarcity. Equipment of this kind is bought out of building owners' capital budgets, and those budgets are among the first cut when financing costs rise or non-residential activity rolls over. Orders do not fade gradually — backlog converts and is simply not replaced. Two things then break together: an operating margin near 11% (reported GAAP, TTM to Jun 2026) that depends on factory absorption, and a forward multiple of 37 that only makes sense if the growth is structural rather than cyclical. Substitution is the second leg: if the data-centre and electrification demand the bull case leans on is served by competing equipment or by different cooling architectures, the growth premium was never this company's to keep. In the engine's structural state the target sits below the triangulated anchor of $97.86 and below the stock's 52-week low — and the shares have already traded far beneath their 52-week high inside the past year.

Key Debate

P/E Multiple explains 48% of Monte Carlo outcome variance — i.e. value is set by the multiple the market will pay, a rate/sentiment regime bet as much as an earnings bet.

What the Market Is Pricing In

At the current price, the market pays 36.6× consensus forward EPS, vs the house DCF terminal 30.0×, and a peer median 25.8×. The house DCF sits 26% below spot, so the market is pricing in more than the house case — roughly 2.9pp of revenue CAGR.

Variant perception: the house view is below-consensus, and the thesis is primarily multiple-driven.

Scenario Analysis

The scenario tree spans a structural 'Structural — Construction-Demand Reset / Substitution' downside ($52.48) to a 'Bull — Re-Rate' bull case ($231); the probability-weighted blend (PWEV $128) is +48% versus spot.

SBC charge: scenario targets are gross per-share prices; the PWEV is reduced by one year of stock-based-compensation dilution (1.5% of shares, on SBC ≈ 1% of revenue), trimming the gross PWEV of $130 to $128 (-1.5%). SBC is charged once, as dilution — never also deducted from FCF.

Scenario rationale — the driver path behind every target:

• Structural — Construction-Demand Reset / Substitution (20%, $52.48). Structural impairment — construction-demand reset / substitution: earnings AND the multiple compress together. Target sits below the 52-week low by construction.
• Housing / Nonres Recession (17%, $97.60). Cyclical downturn — new-build + repair-remodel volumes + price/mix vs input costs weakens for 1–2 years before normalising.
• Base — Repair-Remodel + Pricing (35%, $136). Mid-cycle — normalised new-build + repair-remodel volumes + price/mix vs input costs; disciplined capital allocation; steady returns.
• Growth — Datacenter Cooling / Electrification / Reno (20%, $183). Upside — renovation cycle + efficiency upgrades + non-res build lifts earnings above mid-cycle; the multiple expands modestly.
• Bull — Re-Rate (8%, $231). Upside tail — sustained tight conditions or a structural re-rate on renovation cycle + efficiency upgrades + non-res build.

Valuation Triangulation

Four weighted anchors — an intrinsic dcf, a scenario-weighted pwev, a monte carlo median (student-t + regime switching) and a peer p/e re-rate — read them with their basis in mind. The Monte Carlo, the scenario PWEV, any DCF's exit-multiple terminal and any peer re-rate key off a market multiple, so they are not independent; only a DCF's explicit-period cash flows are multiple-free, and its terminal usually carries most of its value. The discipline is to read the spread, not to treat four numbers as four independent votes.

The house blend DECLARES five anchor weights — DCF 35%, scenario PWEV 25%, Monte Carlo 15%, sum-of-parts 15%, peer re-rate 10%. For this name sum-of-parts is not computed, so 15% of the declared weight is redistributed across the anchors that exist — which is why the weights above differ from the declared ones. The fair value is unaffected by this disclosure; the blend has always worked this way. The company-lever row in the Sensitivity section is an illustrative EBIT × multiple value, not a sum-of-parts anchor.

Peer EV/Revenue re-rate — 0% weight: it duplicates the peer-multiple information already carried by the Peer P/E anchor while ignoring margin mix; weighting both would double-count the peer view. Shown as a cross-check.

Monte Carlo — the outcome distribution

10,000 paths, Student-t shocks (fat tails) with a regime-switching overlay. The median lands at $115 and 72% of paths finish above spot. The variance decomposition shows the p/e multiple is the dominant swing factor (48% of variance). Value is a multiple bet: fundamentals move the answer far less than the rating does.

DCF — explicit-period cash flows with an exit-multiple terminal

A 5-year cash-flow path discounted at a WACC of 8.5%, plus a terminal value of final-year FCF × 30.0x — a terminal multiple equal to 0.85 × the base multiple that the Monte Carlo and the scenario tree also use → $63.73. The terminal value is 85% of enterprise value, so this anchor moves with the multiple assumption. Weighted 34% in the blend; its exit-multiple terminal ties it to a market multiple, so it is not an independent vote.

Peer benchmarking — relative value

Against its 4 peers in the same GICS sub-industry, re-rating to their median forward multiple (P/E 25.8x) implies $60.70. A premium is only justified by superior growth/margins; otherwise it is multiple risk. Weighted just 8% so market sentiment does not set the fair value.

Across all anchors the spread is 97% of the median — wide (genuine disagreement — the blend carries low valuation confidence).

Sensitivity

DCF/share — WACC × terminal multiple

DCF/share — revenue CAGR Δ × model op-margin Δ (Δ applied to the DCF's house margin path)

Tornado — DCF/share swing by driver (widest first)

Company lever — value at the base multiple vs Building Products multiple (base 34.0x)

Illustrative: segment EBIT × multiple, plus net cash, over basic shares — it does not enter the triangulated fair value.

Peer Quality & Weighting

Quality-weighted forward P/E: 28.1× (simple median 25.8×). Direct peers count 100%, segment 50%, broad 25%.

Valuation-anchor screen: Scenario PWEV (valid but extreme (>100% over median)). Anchor median 63.7. Extreme/excluded anchors carry no headline weight.

Historical-range cross-check: 52-week range $73.19–$150, centre $105 (+22% vs spot); spot sits at the 17th percentile of the range. Low-weight mean-reversion cross-check, not a fundamental anchor.

Risk / Reward & Margin of Safety

Reward/risk = (triangulated FV ÷ price − 1) ÷ (1 − 'Structural — Construction-Demand Reset / Substitution' target ÷ price). 'Structural — Construction-Demand Reset / Substitution' ($52.48, probability 20%) is the lowest-target scenario in the tree, taken gross of SBC dilution. Bull case (Bull — Re-Rate): $231.

Company Overview & Business Model

AAON Inc — INDUSTRIALS · BUILDING PRODUCTS & EQUIPMENT. AAON, Inc. engages in the engineering, manufacturing, marketing and sales of heating and air conditioning equipment in the United States and Canada. The company is headquartered in Tulsa, Oklahoma.

Company description as supplied by Alpha Vantage; not checked against the company's filings.

How it makes money.

† Model margin = gross margin − the opex ratio calibrated so the Monte Carlo median EPS meets the EPS target; it is not a reported operating margin.

Reported operating margin (GAAP): 10.5% for the fiscal year ended 2025-12-31; 11.1% TTM to 2026-06-30 (Alpha Vantage INCOME_STATEMENT).

Edge. Narrow moat — inferred from a 11% (reported GAAP, TTM to Jun 2026) operating margin and the building products business model. Some pricing power / share stability; terminal multiple near the market.

Revenue-Segment Breakdown

The company-specific drivers behind the valuation — each segment carries its own growth, margin, multiple and capex intensity. (Tags: FACT reported · ESTIMATE from disclosures · INFERENCE judgment.)

For comparison, the company's reported GAAP operating margin was 10.5% for the fiscal year ended 2025-12-31; 11.1% TTM to 2026-06-30 (Alpha Vantage INCOME_STATEMENT).

Named Exposures

Demand & pricing cycle (FACT/ESTIMATE)

Capital intensity & shareholder returns (ESTIMATE)

Structural risk vs optionality (INFERENCE)

Industry Context — Industrials — Building

This name sits in the Industrials — Building cluster as a building products name. new-build + repair-remodel volumes + price/mix vs input costs. Its scenarios are not guessed in isolation — they inherit a single, shared view of the cluster's driver cycle, so the names that depend on the same event are mutually consistent.

Value chain: AWI (building products) · ECG (construction, engineering & industrial distribution) · PRIM (construction, engineering & industrial distribution) · FERG (construction, engineering & industrial distribution) · MTZ (construction, engineering & industrial distribution) · STRL (construction, engineering & industrial distribution) · APG (construction, engineering & industrial distribution) · WCC (construction, engineering & industrial distribution) · WSO (construction, engineering & industrial distribution) · AIT (construction, engineering & industrial distribution) · DY (construction, engineering & industrial distribution) · OC (building products) · WTS (building products) · WMS (building products) · AAON (building products) · ACM (construction, engineering & industrial distribution) · CNM (construction, engineering & industrial distribution) · TTEK (construction, engineering & industrial distribution) · SSD (building products) · MSM (construction, engineering & industrial distribution) · FLR (construction, engineering & industrial distribution) · FBIN (building products) · LPX (building products) · UFPI (building products) · TREX (building products)

Mapping note: name-level 'Structural — Construction-Demand Reset / Substitution' (20%) + 'Housing / Nonres Recession' (17%) map to cluster Construction / Housing Recession (37%); name-level 'Growth — Datacenter Cooling / Electrification / Reno' (20%) + 'Bull — Re-Rate' (8%) map to cluster Upside — Datacenter / Infra / Electrification (28%) — the cluster row is the SUM of the mapped scenario probabilities, not a different estimate.

On the cluster's key downside — Construction / Housing Recession — this name implies 37% vs the cluster house view of 37% (in line with the house). The cluster's full cross-stock reconciliation governs that the names which ride the same capex cycle assign it comparable odds.

Structure: Shared State — The Industrials — Building cycle is the shared macro driver. Driver — construction/housing/nonres activity + HVAC/datacenter cooling + infrastructure. Dispersion — Members differ by cyclicality (quality compounders vs deep cyclicals).

Balance Sheet & Liquidity

Balance-sheet data as of 2025-12-31 (Alpha Vantage).

Capital Allocation

Free-Cash-Flow Quality

Accounting quality: SBC 1% of revenue; cash conversion (OCF/NI) -1% — earnings not cash-backed.

Earnings-Call Disconfirmation & Sentiment

Derived signals from the MCH market-data store (Alpha Vantage transcripts + news). Quantitative tone only — a disconfirmation flag, not a substitute for reading the call.

Management vs analyst tone (2026Q1): management +0.64 vs analyst floor +0.00 → delta +0.64 (n=20 mgmt / 17 Q&A; 91st pctile across the S&P book, z +1.5).

Flag: ELEVATED — management unusually upbeat vs the analyst floor relative to peers (disconfirmation watch).

News (last 365d, 469 articles): avg ticker sentiment +0.15 (bullish 29% / bearish 7%)

Consensus & Market Expectations

_Consensus figures: Alpha Vantage sell-side aggregates. Where the house view sits materially above or below the street, the divergence is itself a datum — see the thesis.

Catalyst Calendar

• 2026-11-05 (~27d) — Quarterly earnings — est. EPS $0.57 (AV EARNINGS_CALENDAR)

Forecast Track Record

• EPS surprise: beat 62% of the last 8 quarters; average surprise +11.0%.

Catalyst Timeline

5 catalysts in the next 90 days (of 12 tracked). Importance 1–3; confidence 0–1.

_Sources: extended.catalysts, data/catalysts/.json, data/catalysts/macro.json, AV DIVIDENDS, opex 3rd-Friday calc.

Scenario Macro & Key Risks

Decision Rules (Machine-Checked)

Stance: Hold — 1 bullish / 0 bearish / 1 caution rules triggered of 5 evaluable (1 lacked data).

Machine-checked rules over disclosed inputs. The authored falsification triggers elsewhere in this report are analyst judgment and are NOT evaluated here. The stance is what the model's own rules read on this name; it does not modify the published research rating, and it is not personal financial advice.

Reasons the Thesis Could Fail (Falsifiable)

Pre-registered signals that would break the thesis — each polices a specific scenario boundary and is checked at every earnings update:

• Organic revenue growth / order backlog < flat-to-negative for two consecutive quarters (2 consecutive prints). Sustained demand rollover breaks the base case toward the recession scenario.
• FY revenue ($B) < 1.65 (next reported fiscal year). (rationale withheld pending re-authoring — frozen figure or verdict)
• Probability-weighted fair value (PWEV) at the next re-run < 86.16 (any scheduled re-run). (rationale withheld pending re-authoring — frozen figure or verdict)

Fact / Inference / Speculation

• FACT: Spot $86.16; 52-week range $73.19–$150; engine rating BUY; house target $128 (+48%). (source: Alpha Vantage 2026-10-09, 10 October 2026)
• INFERENCE: Triangulated FV $97.86 (+14% vs spot · triangulated FV); the rating tracks the Monte-Carlo + scenario-PWEV core; the DCF anchor sits below the multiple-discipline core.
• SPECULATION: At current prices the embedded bet is that the market keeps paying the current multiple through the capex cycle — a regime call the engine cannot verify from fundamentals alone.

Conviction Score

Research Conviction measures the strength and quality of the research setup — input coverage, financial quality, valuation support, process agreement. It is NOT the probability that the recommendation succeeds; the forecast track record section is the evidence on that.

61.3/100 (confidence band 51.5–71.0), 65th percentile of 893 covered names (as of 2026-10-09). Weighted composite under config ros-1.20.0 — every component and its inputs below.

Score history: 55.3 → 55.4 → 53.7 → 53.7 → 56.1 → 61.7 → 61.1 → 61.3.

Probability-Weighted Return Profile

Horizon: 1 year — at this horizon CAGR equals total return by definition. Expected values are the probability-weighted sums over the full scenario set below.

The gross expected return is the probability-weighted scenario return (it reconciles to the gross PWEV); the diluted figure applies the SBC share-count charge and matches the published PWEV-based target.

Expected Alpha

Expected return minus the return this name is REQUIRED to deliver for its risk (1-year horizon). Constants are pre-registered (preregistered-static (amendment #2, 2026-07-29); not fitted to MCH outcomes).

A negative expected alpha does not change the rating — it says the expected return does not clear the risk-adjusted hurdle at today's price. Rating mechanics are unchanged by this section.

Probability Cross-Checks

Not authoritative. The scenario probabilities in this report are AUTHORED — a judgement about how the world might go, not a measurement. Nothing below modifies them, the target, the rating or any position size. These checks ask only whether anything outside our own model agrees with us; where it does not, that is information for the reader, not a correction we have quietly applied.

Authored set: 5 scenarios, probabilities summing to 1.0, mean target $129.62.

Factor Exposures

Cross-sectional percentiles over 893 covered names (style scores sector-demeaned; thematic = return-beta to the theme's proxy ETF). 50 = estate median.

Market interaction: correlation vs SPY +0.45, vs QQQ +0.45 (trailing ~1y daily returns).

Rating Bridge

Rating = BUY because:

• Probability-weighted scenario value implies +48% vs spot
• Monte Carlo median implies +34% vs spot
• DCF fair value (exit-multiple terminal) implies -26% vs spot — but this is terminal-value sensitive (exit-multiple $63.73 vs Gordon $38.63, 39% apart), so it carries less weight
• Bear case (Structural — Construction-Demand Reset / Substitution) downside is -39% vs spot
• Net: reward/risk of 0.3× supports a Buy — note this is below 1.0×, i.e. the modelled downside exceeds the modelled upside despite the Buy rating.

Model Appendix

DCF — line items

FCF is bridged: NOPAT + D&A − Capex − ΔNWC (capex intensity 3% of revenue, weighted from the segments) — not a single conversion fudge.

WACC 8.5% · Σ PV(FCF) $1B + PV(terminal) $5B = EV $6B; − net debt $0.5B → equity $6B ÷ diluted shares $0.09B = $63.73/share (exit-multiple terminal).

• Gordon terminal → $38.63/share — a single-point perpetual-growth cross-check at g = 2.5% (one growth rate, not a range; it is not in the blend).
• Incremental ROIC on the forecast capex ≈ 18% vs WACC 8.5% → above WACC — the build is value-creative.

Peer set

Implied prices at the peer medians: same-sub-industry median fwd P/E → $60.70; EV/Rev → $68.83.

Weighted fair-value math

Assumption Register

Sensitivity-ranked drivers (widest fair-value swing first): Model op margin ±3pp (25.0); Terminal × ±15% (17.0); Revenue CAGR ±3pp (17.0); WACC ±1pp (6.0); Capex intensity ±15% (5.0).

Inputs, Sources & Confidence

Every load-bearing input, labelled by type and confidence. (reported fact · company guidance · consensus estimate · market data · house estimate · inference.)

Research Provenance

Load-Bearing Assumptions

DCF: WACC 8.5%, terminal multiple 30×, FY+5 revenue $2B. Triangulation leans 36% on PWEV, 34% on DCF, 22% on the Monte Carlo median, 8% on peer-implied value.