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AGING Analysis Report
Aug 11, 2026
12 days ago · 100% complete
NOT DEPENDABLE This report predates a filing — its financial basis has been replaced.
Report generated: Aug 11, 2026 · Filing on record since: Aug 22, 2026 · 10 days after
For AI assistants & researchers — machine-readable summary of this page

What this page is: Delvantic's full research page for TransDigm Group Inc. (TDG) — AI-driven forensic equity research: mechanical valuation models (DCF, EPV, anchored-PE, scenario) plus three independent AI lenses (Quality / Value / Sentiment). Everything below is rendered server-side; you are not missing content that requires JavaScript. All scores are predictions and research opinions, not financial advice.

Our current read (analysis of 2026-08-23): Designation Watch · Gem Score -12 (−100…+100 Quality+Value blend) · Quality 65 · Value -75 · Sentiment 54 (timing only, not weighted)

Page map (sections in order; each card carries a stable reference-name attribute you can cite):

  • profile-header / price-overview — company profile, live quote, market cap
  • extended-analysisthe core: three AI lens reads with findings, scores, and the analyst memo
  • future-predictions — our forward price-band predictions
  • market-narrative / ai-findings / gpt-critique — narrative context, cross-model findings, and an adversarial critique of our own analysis (near the end of the document)
  • Members-only sections (render as login gates for anonymous readers): price-history, income-trend, key-metrics, financials (statement tables), insider-trading. The analysis above is public; the raw data tables require a free account.

More for machine readers: site briefing at /llms.txt · any ticker resolves at delvantic.com/stock/TICKER · raw inputs are public-company filings and market data (via licensed data feeds); every model, score, lens read, and prediction on this page is Delvantic's own analysis.

TransDigm Group Inc.

TDG NYSE
Industrials · Aerospace & Defense
Cleveland, OH 44115, United States transdigm.com Updated Aug 11, 11:35am
Price
$1,244.60
Market Cap
$68.4B
Employees
16,500
Beta
0.91
Avg Volume
393,239
CEO
Mr. Michael J. Lisman

TransDigm Group Inc. is a manufacturer and supplier of highly engineered aircraft components for the global aerospace and defense industry. The company focuses on proprietary, specialized parts that are critical for aircraft performance and safety, often with significant aftermarket demand. TransDigm operates through three primary segments: Power and Control, Airframe, and Non-Aviation. The Power and Control segment provides products such as electromechanical actuators, ignition systems, specialized pumps, valves, and power conditioning devices used in aircraft systems. The Airframe segment supplies components integrated into aircraft structures and interiors, serving both commercial and military platforms. The Non-Aviation segment offers engineered products mainly for off-road vehicles and industrial and mining applications. TransDigm often acts as a holding company for a portfolio of niche aerospace businesses, emphasizing mission-critical components with long product lifecycles. Headquartered in Cleveland, Ohio, and founded in the United States, TransDigm plays a prominent role in the industrials sector, particularly within aerospace and defense, by supporting aircraft manufacturers, airlines, maintenance providers, and defense organizations worldwide.

Runs with full report Generated: Aug 11, 2026 2:51pm
Price Overview
Price at report time
$1,240.16
as of Aug 11, 3:00pm (12d ago)
Change · Aug 11
+16.68 (+1.36%)
Day Range
$1,221.08 – $1,250.51
52-Week Range
$1,123.61 – $1,463.03
50-Day MA
$1,266.71
200-Day MA
$1,279.60
Volume
22,505.00
Right now · live
Log in to get the live feed
Members see the real-time price and the move since this report (over 12d).
Share Structure
Outstanding 55,269,803.00
Float 54,146,120.00
Free Float 98.0%
High free float — 98.0% of shares trade freely, ~2% held by insiders/institutions
Very liquid — most shares trade freely. Low insider ownership can mean less management alignment, but makes large position sizing straightforward.
Price History (1 Year)
Last updated: Aug 11, 2026 3:00pm (12d ago)
Revenue & Net Income Trend
The directional story — useful even when net income is negative.
Last updated: Aug 11, 2026 3:00pm (12d ago)
Revenue
The top line — total sales before any costs or taxes are subtracted. A measure of how much business the company is doing.
Net Income
The bottom line — profit left after subtracting all expenses, interest, and taxes from revenue. Reflects accounting profitability, but includes non-cash items like depreciation, so it isn't the same as cash earned.
Operating Cash Flow
The real cash generated by the day-to-day business — selling products, paying suppliers, collecting from customers. Calculated from net income by adding back non-cash items and adjusting for timing (unpaid bills, unsold inventory). When OCF consistently lags net income, the reported profit may not be converting to real money.
Period Revenue Net Income Net Margin YoY/QoQ
Key Metrics
TD Twelve Data statement HEX SEC filing
Industry comparison last run: Aug 11, 2026 2:49pm
P/E Ratio (Price per dollar of earnings)
HEX
Stock Price / EPS (Diluted)
38.59
Stock Price: $1,245
EPS (Diluted): 32.08
P/B Ratio (Price vs net asset value)
HEX
Stock Price / Book Value Per Share
Stock Price: $1,245
Total Equity: -$9.68B
Shares: 58,200,000
EV/EBITDA (Total value vs operating profit)
HEX
Enterprise Value / EBITDA
21.77
Market Cap: $68.43B
Total Debt: $29.42B
Cash: $2.81B
EBITDA: $4.53B
Enterprise Value (Takeover price (cap + debt - cash))
HEX
Market Cap + Total Debt - Cash
$98.7B
Market Cap: $68.43B
Total Debt: $29.42B
Cash: $2.81B
Gross Margin (Revenue left after direct costs)
HEX
Gross Profit / Revenue
60.1%
Gross Profit: $5.31B
Revenue: $8.83B
Operating Margin (Revenue left after all operations)
HEX
Operating Income / Revenue
47.2%
Operating Income: $4.17B
Revenue: $8.83B
Net Margin (Revenue left as actual profit)
HEX
Net Income / Revenue
23.5%
Net Income: $2.07B
Revenue: $8.83B
ROE (Profit from shareholder equity)
HEX
Net Income / Total Equity
Net Income: $2.07B
Total Equity: -$9.68B
ROIC (Profit from all invested capital)
HEX
NOPAT / Invested Capital
Operating Income: $4.17B
Tax Rate: 21.1%
Equity: -$9.68B
Total Debt: $29.42B
Cash: $2.81B
Current Ratio (Can it pay short-term bills)
HEX
Current Assets / Current Liabilities
3.21
Current Assets: $7.01B
Current Liabilities: $2.18B
Debt/Equity (Leverage — debt vs equity)
HEX
Total Debt / Total Equity
Short-Term Debt: $124.00M
Long-Term Debt: $29.29B
Total Debt: $29.42B
Total Equity: -$9.68B
Rev/Share (Top-line per share)
HEX
Revenue / Shares Outstanding
$151.74
Revenue: $8.83B
Shares: 58,200,000
Book Value/Share (Net assets per share)
HEX
(Total Assets - Total Liabilities) / Shares
Total Equity: -$9.68B
Shares: 58,200,000
FCF/Share (Real cash generated per share)
HEX
(Operating Cash Flow + CapEx) / Shares
$31.20
Operating CF: $2.04B
CapEx: -$222.00M
Shares: 58,200,000
CapEx is negative (outflow) — added to OCF to get FCF
Div Yield (Annual income from holding)
TD
Last Annual Dividend / Stock Price
Last Dividend: $0.00
Stock Price: $1,245
Payout Ratio (Earnings paid out as dividends)
HEX
Dividends Paid / Net Income
464.3%
Dividends Paid: -$9.63B
Net Income: $2.07B
Industry Benchmarks
Last run: Aug 11, 2026 2:49pm
Compares TDG against LLM-researched typical ranges for its industry. One research call per industry, cached indefinitely — every stock in the same industry reuses the same baseline.
Income Statement (Annual)
Last updated: Aug 11, 2026 3:00pm (12d ago)
Metric 2021 2022 2023 2024 2025
Revenue $4.8B $5.4B $6.6B $7.9B $8.8B
Cost of Revenue $2.3B $2.3B $2.7B $3.3B $3.5B
Gross Profit $2.5B $3.1B $3.8B $4.7B $5.3B
Operating Expenses $822.0M $884.0M $919.0M $1.1B $1.1B
Operating Income $1.7B $2.2B $2.9B $3.5B $4.2B
Net Income $680.0M $866.0M $1.3B $1.7B $2.1B
EBITDA $1.9B $2.5B $3.2B $3.8B $4.5B
EPS $10.41 $13.40 $22.03 $25.62 $32.08
EPS (Diluted) $10.41 $13.40 $22.03 $25.62 $32.08
Balance Sheet (Annual)
Last updated: Aug 11, 2026 12:31pm (12d ago)
Metric 2021 2022 2023 2024 2025
Cash & Equivalents $4.8B $3.0B $3.5B $6.3B $2.8B
Total Current Assets $7.0B $5.6B $6.7B $10.0B $7.0B
Total Assets $19.3B $18.1B $20.0B $25.6B $22.9B
Current Liabilities $1.7B $1.4B $1.6B $6.3B $2.2B
Long-Term Debt $19.6B $19.4B $19.4B $24.4B $29.3B
Total Liabilities $22.2B $21.9B $21.9B $31.9B $32.6B
Total Equity -$2.9B -$3.8B -$2.0B -$6.3B -$9.7B
Retained Earnings -$3.7B -$3.9B -$2.6B -$7.4B -$10.6B
Cash Flow (Annual)
Last updated: Aug 11, 2026 3:00pm (12d ago)
Metric 2021 2022 2023 2024 2025
Operating Cash Flow $913.0M $948.0M $1.4B $2.0B $2.0B
Capital Expenditure -$105.0M -$119.0M -$139.0M -$165.0M -$222.0M
Free Cash Flow $808.0M $829.0M $1.2B $1.9B $1.8B
Acquisitions (net) -$963.0M -$437.0M -$762.0M -$2.3B -$419.0M
Net Debt Issued / (Repaid) $0 $0 $6.2B $6.8B $6.0B
Dividends Paid -$73.0M -$1.1B -$38.0M -$2.0B -$9.6B
Stock Buybacks $0 -$912.0M $0 $0 -$500.0M
Net Change in Cash $70.0M -$1.8B $471.0M $2.8B -$3.5B
Growth Trends (YoY %)
Last updated: Aug 11, 2026 3:00pm (12d ago)
Metric 2022 2023 2024 2025
Revenue Growth +13.2% +21.3% +20.6% +11.2%
Gross Profit Growth +23.3% +24.0% +21.6% +13.7%
Operating Income Growth +31.0% +32.0% +20.8% +18.0%
Net Income Growth +27.4% +49.9% +32.0% +21.0%
EBITDA Growth +27.0% +29.3% +20.4% +17.9%
Dividend History (Last 20)
Last updated: Aug 11, 2026 12:31pm (12d ago)
Date Dividend Declaration Record Payment
2025-09-02 $90.00
2024-10-04 $75.00
2023-11-17 $35.00
2022-08-18 $18.50
2019-12-27 $32.50
2019-08-15 $30.00
2017-08-31 $22.00
2016-10-20 $24.00
2014-06-12 $25.00
2013-07-11 $22.00
2012-10-23 $12.85
2009-10-14 $7.65
0Company Classification 1Industry Landscape 2Company Momentum 3Forward Projection 4aDCF Valuation 4bEarnings Power Value 4cAnchored PE 4dReverse DCF 4eRevenue-Based DCF 4fAnchored P/S 4gScenario Analysis 4hDividend Discount Model 4iBook Value Analysis 4jInsider Activity 4fCash Flow Quality 4gDebt Maturity Risk 4hMacro Environment 4iSector Intelligence 4jRevenue Confidence 4kSensitivity Analysis 4lSector Demand Cycle 5AI Investigation 5bThesis Evaluation 6Valuation Synthesis
computed not applicable not yet run 12 computed · 6 not applicable · 6 not yet run
Narrative Economics
The story the market is telling about this stock — the intangible X-factor (founder mythology, cult dynamics, TAM-of-imagination) that moves price beyond what cash flows alone explain. After Shiller, Narrative Economics.
No narrative profile yet for TDG — it's generated by the pipeline (market-narrative step).
AI Lens 4th lens · how AI reaches this business · 5-yr
2026-08-11
The creme is there an opportunity here? Neutral
AI is not the variable that decides TransDigm — exposure is genuinely low (27) and the net effect mildly positive, so judge this name on pricing pushback and the cycle, not on machine intelligence.
The shield here is regulatory, not technical: certificated design approvals on 30-year platforms are the scarce asset, and cheap intelligence makes them relatively scarcer, not cheaper to copy — hence ai_position 61 with a narrow 41/60/73 range. The one AI mechanism worth pre-positioning on is dual: AI-assisted PMA engineering plus condition-based maintenance attacking aftermarket volume, so watch the price/volume decomposition of aftermarket growth and PMA filings against TDG part numbers rather than any AI product announcement. Cost-side AI is real but modest against an already 47% operating margin.
61
AI Position
Mildly favorable - low exposure is the finding
Cheap intelligence cannot reproduce an FAA design approval on a sole-source actuator, so AI trims TransDigm's costs at the edges while the pricing engine — the actual value driver — sits almost entirely outside AI's reach.
Exposure 27 Confidence 69 50 = neutral
Primary Tailwind

AI shaves cost out of engineering documentation, supply-chain planning, and back office across ~50 decentralized units while sole-source pricing is set by installed-base leverage, not cost — so any savings drop straight to the 47% operating margin.

Primary Pressure

AI plus cheap generative design lowers the engineering cost of reverse-engineering and documenting PMA alternatives to TransDigm's proprietary parts, and AI-driven condition-based maintenance can reduce unnecessary spare replacements — both attack aftermarket volume and price at the same time.

Critical Hinge

Whether AI-assisted PMA/DER engineering materially raises the rate of approved alternatives to TransDigm's sole-source SKUs. Observable: PMA approval counts against TDG part numbers, airline/MRO adoption of non-OEM spares, and aftermarket revenue growth decomposed into price versus volume.

Hard to Reproduce

Certificated design approvals, qualification/airworthiness data on decades-old shipsets, sole-source positions embedded in platforms with 30-year lives, and the liability that attaches to the approval holder — none of which cheaper software creates.

Forensic fingerprint same 11 factors for every stock · 0 unfavorable · 50 neutral · 100 favorable
Underlying Need Persistence do people still need this at all? 93
Aircraft in service will need certificated replacement hardware regardless of how cheap intelligence gets.
The need is physical wear on flight-critical components across a growing installed fleet; AI does not reduce the requirement for a functioning actuator, pump or ignition system.
global flight hours and fleet utilization · aftermarket revenue vs. flight-hour growth · fleet retirement and delivery rates
relevance 68 · confidence 88
Solution Persistence will they still solve it this way? 83
Replacement will still be a certificated part from the approval holder for the life of each platform.
Airworthiness rules bind the aircraft to specific approved part designs across 30-year lifecycles, so the solution form is locked in by regulation, not by software architecture.
PMA penetration on TDG part numbers · additive manufacturing approvals for spares · OEM in-sourcing of legacy components
relevance 66 · confidence 76
Intelligence Commoditization does cheap AI power them or copy them? 57
Cheap AI powers TDG's engineering and planning but does little to copy a certificated hardware position.
The barrier is approval, qualification data and platform incumbency rather than design intelligence; cheaper engineering helps TDG internally and only marginally arms would-be copiers.
engineering headcount per new program · cost per part qualification · competitor use of AI design tools
relevance 44 · confidence 64
Responsibility Transfer are they paid to take the blame? 74
TransDigm holds airworthiness accountability that no customer wants to assume.
The approval holder carries certification and liability for flight-critical parts, which is precisely why airlines and MROs do not attempt to self-manufacture even when the geometry is knowable.
airworthiness directives touching TDG parts · MRO liability posture on non-OEM spares · warranty and recall expense trend
relevance 58 · confidence 70
Scarcity Migration do their assets get rarer or more common? 71
As engineering and software become abundant, certificated positions on flying platforms become relatively scarcer.
AI inflates the supply of design capability while the supply of approved, installed sole-source part numbers is fixed by regulation and platform history — TDG owns the fixed side.
share of revenue that is sole-source · new platform win rate · acquisition multiples for certificated niches
relevance 70 · confidence 68
Customer DIY Preference will customers just build it themselves? 71
Airlines will not become certificated component manufacturers no matter how cheap the engineering gets.
Vertical integration requires certification, liability, and low-volume manufacturing economics that airlines actively avoid; the real DIY pressure comes from large OEMs and MROs, not operators.
airline/MRO PMA sourcing programs · OEM insourcing announcements · DoD sole-source pricing audits
relevance 46 · confidence 66
AI Intermediation Position do AI agents go through them or around them? 54
AI procurement agents raise price transparency without removing TDG from the transaction.
Parts must still ship from the approval holder, so agents cannot route around TDG, but AI-assisted sourcing and spend analytics make the pricing spread easier for customers to challenge.
customer spend-analytics initiatives · parts marketplace adoption in MRO · price realization in aftermarket mix
relevance 32 · confidence 58
Data Leverage does their data make AI better? 44
The valuable fleet-condition data sits with operators and OEMs, not with TransDigm.
TDG sells components without owning the in-service telemetry, so AI-driven maintenance intelligence accrues to airframers and airlines who can then optimize spare consumption against TDG.
health-monitoring content on TDG parts · service agreements with data rights · predictive-maintenance partnerships
relevance 30 · confidence 56
AI Margin Conversion do the AI savings become profit? 62
Savings likely stick because pricing is set by position, not cost pass-through.
With 60% gross and 47% operating margins and sole-source pricing insulated from competitive cost benchmarks, AI-driven overhead and engineering savings are not competed away.
SG&A as percent of revenue · operating margin trajectory · EBITDA per employee
relevance 46 · confidence 62
Revenue Unit Durability does the thing they charge for survive? 65
The monetized unit — a replacement part event — survives, but condition-based maintenance can thin its frequency.
AI-optimized maintenance removes precautionary and calendar-driven replacements, trimming spare volume; price escalation historically more than offsets, but the volume mechanism is real and under-discussed.
aftermarket volume vs. price split · shop visit intervals on key platforms · spares inventory behavior at airlines
relevance 64 · confidence 63
Entrant Compression how easily can newcomers copy them? 51
AI lowers the engineering cost of building an alternative part; regulation still absorbs most of the barrier.
Cheaper reverse-engineering and documentation shifts PMA economics for higher-volume SKUs, but approval timelines, liability, and operator conservatism keep the flight-critical niches defensible.
PMA filings against TDG catalog · new entrants in certificated actuation · time-to-approval trends at FAA
relevance 60 · confidence 60

AI Lens thesis

TransDigm sells physical, certificated, mission-critical hardware whose economics rest on regulatory position and installed base rather than information processing, so cheap intelligence reaches it only indirectly: modestly favorable on the cost side (engineering, planning, SG&A across a decentralized structure with already-extreme cost discipline), modestly adverse on the demand side (condition-based maintenance rationalizing spare consumption, AI-enabled procurement transparency letting airlines and the DoD benchmark prices harder, cheaper engineering economics for PMA entrants at the margin). The monetized unit — a replacement part on an aircraft that must fly — survives intact; the risk to the multiple is pricing pushback and cycle, which is not an AI story. Net: a real but second-order tailwind, with the honest finding being low exposure rather than a dramatic mechanism.

Thesis breaker A visible acceleration in approved PMA or additively-manufactured alternatives displacing TDG sole-source SKUs, or aftermarket volume decoupling downward from flight hours as predictive maintenance rationalizes spares — either would convert this from insulated to structurally pressured.
What the market may be underestimating

Upside AI-assisted qualification and test documentation could compress the cost and time of getting TransDigm's own parts onto new platforms and of integrating acquisitions, quietly raising the return on its serial-M&A machine — the engine the market values it for.

Downside AI gives customers the analytical firepower TransDigm's pricing model has always depended on them lacking: airlines, MROs and DoD auditors can now model part-level cost histories and cross-reference substitutes at scale, sharpening the exact pricing pushback the bear case describes.

Outcome range spread 32

41Bear case
60Central case
73Bull case
Three headline numbers, deliberately never blended: Position (which way), Exposure (how much it matters at all), Confidence (how sure). The fingerprint asks every stock the same 11 questions so companies a sector label would lump together get told apart. Not an input to GEM/Coal or the Q/V/S lenses.
Claude Reading
Independent analyst synthesis · claude-opus-4-7 · generated 2026-08-11 14:59:36
Verdict Overvalued but higher quality than the synthesis credits — fair value $850-950 vs $1,245; wait for a 25%+ pullback or defense-budget scare before buying, don't short a monopoly.

TransDigm's raw numbers describe a machine most industrials would kill for: TTM revenue tracking ~$9.5B (annualizing the last four quarters at $2.54B+$2.29B+$2.44B+$2.24B = $9.51B), TTM net income around $2.08B for a 22% net margin, and FY25 op margin of 47%. Growth is real but decelerating — FY25 revenue growth was 11.2% vs the 15.8% five-year CAGR, and the most recent quarter's 18% YoY jump is flattered by mix (Q3 rev was $2.54B on 21% margin vs Q1's $2.29B on 19.5%). FCF of $1.82B on $68B market cap is a 2.7% yield; the equity is priced at ~33x FCF and 33x TTM earnings against an EV/EBITDA of ~22. Balance sheet is the elephant: $29.4B gross debt, $2.8B cash, negative $9.7B equity — this is a private-equity capital structure hiding inside a public compounder. Interest coverage is workable (op income $4.17B against roughly $1.6-1.8B of interest) but leaves no room for aftermarket softness.

On the synthesis verdict ($697 fair value vs $1,245): I partially agree with the direction but think the DCF anchor is too punitive. A $697 target implies ~18x FCF for a business with 60% gross margins, near-monopoly aftermarket positions, and a 25-year track record of double-digit compounding — that's a distressed-industrial multiple that ignores the actual moat. Where I do agree with the bear case: paying 33x FCF for a business already at 47% op margins means you're underwriting further margin expansion into a decelerating top line, and every dollar of that valuation assumes debt gets refinanced smoothly through the next aerospace cycle. The market-forces framing ("Tailwinds" on a stock 79% above fundamental fair value with a wrecked balance sheet) reads incoherent — you can't call something a tailwind setup when the synthesis flags "extremely fragile" valuation in the same file. The pre-flight and narrative layers are more honest: this is a platform-monopoly narrative with strong intensity, and half the market cap is the story.

The contrarian bull case worth taking seriously: TransDigm's debt is a feature, not a bug — they've compounded equity value at 20%+ for two decades precisely by levering the balance sheet and buying more captive-parts businesses, and negative book equity is the mathematical residue of $75+/share special dividends and buybacks, not distress. Boeing MAX ramp, sustained defense spend, and airline fleet-age (record-old fleets = record aftermarket demand) all argue the pricing runway isn't done. Insider activity is mostly option-exercise sales at small sizes — noise, not a signal, and I'd downgrade the "Neutral Insider Activity" tag to genuinely uninformative. The Q1 FY26 dip to 19.5% margin followed by Q2's snap-back to 21% suggests mix volatility, not structural erosion. Contrarian bear angle the models undersell: if the DOD IG report on spare parts pricing (a recurring risk for TDG) ever produces contract-level rebates or GAO-driven procurement reform, the aftermarket margin structure compresses fast — and at 33x earnings there's no cushion.

Committing: I dissent from the $697 fair value as too aggressive on the downside but agree with the "overvalued" direction. My read is fair value in the $850-950 range — roughly 22-25x FCF, appropriate for a levered compounder with decelerating growth and idiosyncratic regulatory tail risk. At $1,245 that's still 25-35% downside, but not the 44% the composite suggests. The stock is not a short (you don't short monopolies with pricing power just because they're expensive), but I wouldn't be a new buyer here. The right trade is to wait for either (a) a defense-spending scare or aerospace demand wobble that drops it into the $900s, or (b) a special dividend catalyst that resets the setup. The market is paying for perpetual pricing power at 20%+ compounding; the numbers say growth is decelerating to low-teens and margins are already near ceiling. Data caveats: the 2026-dated quarterly and insider entries suggest this file's dates are forward-shifted or mislabeled — worth verifying before sizing anything.

GPT Reading
Independent reading · gpt-5.4 · generated 2026-08-11 14:59:58
Verdict Overvalued at $1,245 — superb business, but the market is capitalizing it like a near-perfect perpetual compounder; fair value looks closer to $900-$1,000 unless free cash flow steps up sharply.

What stands out is that the underlying business is every bit as good as the legend: revenue has compounded from $4.80B in 2021 to $8.83B in 2025, a 16% annualized clip for what is supposed to be a mature aerospace supplier, while operating income has exploded from $1.69B to $4.17B. That is not just cyclical recovery; operating margin has gone from 35.2% to 47.2%, gross margin to 60.1%, and the latest six quarters show revenue stepping up from $2.01B to $2.54B with net margins mostly living in the low-20s and occasionally hitting 25%. The March 2026 quarter was especially strong at $2.54B of sales and $535M of net income, up 18% and 12% respectively versus the year-ago quarter. This is a rare industrial franchise with software-like economics in a physical product niche, and I think that part of the bull case is real, not promotional.

But the stock is priced as if those economics are nearly untouchable forever. At $68.4B market cap, investors are paying 38.6x earnings, 8.2x sales, 21.8x EV/EBITDA, and over 11x EV/revenue for a company that, despite elite margins, produced $1.82B of free cash flow last year. That is roughly a 2.7% FCF yield on market cap for a heavily levered balance sheet carrying $29.4B of debt against $2.8B of cash and negative equity of $9.7B. Even granting that negative equity is engineered through distributions and not an indicator of distress by itself, the enterprise is not being bought at a “great business, fair price” multiple; it is being bought at a “great business, almost no bad outcomes allowed” multiple. The latest annual operating cash flow of $2.04B also trails net income of $2.07B more closely than I’d like for such an aggressively capitalized story, so while cash conversion is still solid, this is not some hidden-cash-flow bargain.

The key contradiction with the more exuberant narrative is that the recent numbers are strong, but not so strong that they obviously justify this valuation. 2025 revenue growth was 11.2%, not 20%+, and quarterly sequential progression has not been perfectly smooth: $2.15B, $2.24B, $2.44B, $2.29B, then $2.54B. Net income has similarly moved around between $445M and $610M over the last four quarters before the latest print. This is still an aerospace supplier exposed to production cadence, retrofit demand, and aftermarket activity; it is not a compounding annuity detached from macro and airline health. A 38x P/E for that setup can work if growth re-accelerates and leverage steadily de-risks, but with debt still above 3x annual revenue and roughly 14x annual net income, the margin for error is thin. My read is simple: this is an exceptional company and an overvalued stock.

The best argument against that view is that TransDigm has repeatedly earned the right to look optically expensive. From 2021 to 2025, net income tripled from $680M to $2.07B, free cash flow reached $1.82B on just $222M of capex, and the current ratio of 3.2 suggests no near-term liquidity issue. If the company can sustain even low-teens revenue growth while preserving a 47% operating margin and continue layering on pricing, mix, and aftermarket gains, then today’s multiple could compress organically without any stock decline. A defender would also say EV/EBITDA near 22x is not insane for a business with this moat, this recurring installed-base exposure, and this level of margin superiority versus industrial peers. I weigh that differently because the stock already reflects that superior quality in full, while the balance sheet leaves less room than normal for operational wobble, refinancing pain, or any regulatory challenge to spare-parts pricing.

What would change my mind is not another quarter of “pretty good.” I’d want to see a sustained step-up that proves the current price can be grown into: revenue holding above $2.5B for multiple quarters, annualized FCF pushing toward $2.4B-$2.6B rather than $1.8B, and debt coming down meaningfully from $29.4B without sacrificing growth. If management can show that the March 2026 quarter is the new run-rate rather than a high point, and if margins stay around 22%-25% net while cash conversion improves, I could justify a premium multiple. Short of that, I think fair value is materially below the current quote, even for a best-in-class aerospace compounder.

Grok Reading
Independent reading · grok-4.5 · generated 2026-08-11 15:00:35
Verdict Overvalued at $1245 — exceptional 47% op-margin compounder already priced for perfection; fair value nearer $700–850

The numbers describe a genuine compounder that has nearly doubled revenue from $4.80B in FY2021 to $8.83B in FY2025 while lifting operating income from $1.69B to $4.17B—an earnings trajectory that produced a 26.4% earnings CAGR against a still-impressive 15.8% revenue CAGR. Gross margin at 60.1% and operating margin at 47.2% are not industrial margins; they are software-like extraction rates on a captive aerospace aftermarket, and the latest quarterly print ($2.54B revenue, 21% net margin) shows the machine is still running. Free cash flow of $1.82B on only $222M of capex confirms the asset-light character of the model. That quality is real and is why the stock has been allowed to trade like a growth compounder rather than a parts supplier.

What the valuation synthesis correctly flags, and what the raw balance sheet makes unavoidable, is that the market has already capitalized roughly a decade of that excellence at once. At $1,244.6 the stock sits at 38.6× earnings, 8.2× sales and 21.8× EV/EBITDA with an enterprise value that embeds $29.4B of debt against only $2.81B of cash and negative equity of $9.68B. The 464% payout ratio is not a dividend policy; it is the signature of a levered capital-return machine that has already pulled future cash flows forward. Recent revenue growth has decelerated to 11.2% year-over-year, and the quarterly sequence ($2.01B → $2.15B → $2.24B → $2.44B → $2.29B → $2.54B) shows the step-function post-pandemic recovery is maturing. Paying 38× for mid-teens growth that is already slowing, while carrying net leverage that leaves interest coverage uncomfortably thin if refinancing rates stay elevated, is a fragile setup. The DCF anchor near $700 is directionally right; the $1,245 price is a 75–80% narrative premium on irreversible pricing power, not a cash-flow multiple.

The strongest case against an overvalued read is straightforward and must be respected: TransDigm’s installed base on commercial and defense platforms is multi-decade, substitution risk is near zero on many SKUs, and the company has repeatedly demonstrated that it can raise price faster than cost. If aerospace OEM production rates continue climbing, defense budgets hold, and management keeps delivering 20%+ FCF growth while refinancing the wall of debt without margin compression, today’s multiple can be grown into rather than compressed. Bulls will also note that EV/EBITDA of 22× is not outrageous for a 47% operating-margin business with high incremental returns, and that negative equity is an accounting artifact of aggressive buybacks rather than operating distress. That argument has worked for a decade. I weigh it less heavily now because the easy volume recovery is behind the company, secondary signals already flag macro headwinds and decelerating revenue confidence, and the refinancing calendar on nearly $30B of debt is no longer a theoretical risk—it is the binding constraint on the entire capital-structure thesis.

I would reverse to a fair-or-better stance if the next two quarters reaccelerate organic revenue growth sustainably above 15% while operating margin holds or expands through 48%, or if management materially de-levers (net debt/EBITDA moving decisively lower) without sacrificing the buyback/dividend machine. A clear, multi-quarter demonstration that airlines and OEMs cannot push back on aftermarket pricing would also justify a higher terminal multiple. Conversely, any guidance cut tied to pricing pushback, a defense budget reset, or a refinancing that lifts cash interest by more than ~150 bps would confirm the premium is air.

Big-3 Panel — where each AI stands
Each AI above independently stated a direction (undervalued, fairly valued, or overvalued) and how strongly it believes it (conviction, 0–5). We combine those into a Bull-Bear Index on a 0–10 scale: 5 is neutral, 10 is maximum bullish (undervalued at full conviction), 0 is maximum bearish. We compute the score ourselves with the same arithmetic for every seat — the models never grade their own bullishness — so the three are directly comparable. Δ shows how far each seat sits from the panel average of 1.3; a large Δ marks the dissenting voice, usually the one worth reading.
Claude claude-opus-4-7 2.0
overvalued · conviction 3/5 · Δ +0.7 vs panel · self: 3.0
GPT gpt-5.4 1.0
overvalued · conviction 4/5 · Δ -0.3 vs panel · self: 3.0
Grok grok-4.5 1.0
overvalued · conviction 4/5 · Δ -0.3 vs panel · self: 3.0
Advanced Analysis Forensic deep-dive · separate lenses
Separate reads — Company Quality (is it a great business?), Valuation (is it mispriced?), and General Sentiment (how macro + narrative are pushing it), plus AI Impact (how the AI wave reshapes it), kept deliberately apart · 2026-08-11 15:13:00
Delvantic - Cairn AI
Quality — wait for a dip 8/10
Elite aerospace aftermarket monopoly priced for perfection at $1,240 — a great business at a bad price, so I wait.
The cruxWhether I get a re-rate opportunity: at 32-44% above every valuation lane, I need a pullback or a narrative crack, not a new thesis.
Forensic checks Derived mechanically from TDG's filed financials — not from the AI lenses
Liquidity & RunwaySelf-Funding
DilutionStable Share Count
Earnings QualityHigh Earnings Quality
The four lensesswitch a tab for its full read — score + evidence
Company Quality
+65
Strong
edge √Σ 156 · risk √Σ 78 · conf 8/10

TransDigm is operating at a rare quality level on the P&L: revenue has grown from $4.80B (2021) to $8.83B (2025), a ~16% CAGR, while gross margin expanded from 52.4% to 60.1% and operating margin from 35.2% to 47.2%. Net income tripled from $680M to $2.07B over the same span, and FCF ran $1.82B in 2025 with OCF/NI of 1.13x and negative accruals (-0.6% of assets) — the earnings are cash-backed and the Beneish M of -2.31 shows no manipulation flags. This is the signature of a proprietary-parts aftermarket moat with genuine pricing power. The offset is entirely on the capital structure: net debt of roughly $26.6B against $2.81B cash and only $1.82B FCF means the leverage ratio is high and Altman Z of 1.85 sits in the grey zone. This is a deliberate LBO-style capital model that management has run successfully for two decades, funding special dividends and M&A with debt rather than diluting holders — diluted share count is essentially flat (58.4M to 58.2M) and buybacks exceed SBC 1.87x. Insider tape shows persistent selling (93 sells, $46M, zero buys), including founder Nick Howley exercising and selling on 2026-07-20. For a company with heavy option-based comp this is typical mechanical monetization rather than a distress signal, but it is not a vote of confidence either.

Strengths 4
m90
Elite and expanding margins
Gross margin 52.4% to 60.1% and operating margin 35.2% to 47.2% over 2021-2025 — evidence of proprietary aftermarket pricing power few industrials achieve.
m78
Clean earnings quality
OCF/NI 1.13x, accruals -0.6% of assets, Beneish M -2.31 — reported $2.07B net income is cash-corroborated with no mechanical red flags.
m70
Per-share discipline
Diluted shares essentially flat at ~58M over five years with buybacks running 186% of SBC (only 1.7% of revenue) — value is not leaking to comp.
m72
Compounding revenue and profit
Revenue nearly doubled ($4.80B to $8.83B) and net income tripled ($680M to $2.07B) across 2021-2025, showing durable operating leverage.
Concerns 3
m68
Heavy net debt load
Net debt of $26.6B vs $1.82B annual FCF (~14.6x) and Altman Z of 1.85 (grey zone) — the balance sheet is a structural constraint, not a cushion, and depends on aftermarket cash flow continuity.
m30
One-way insider tape
93 sells for $46.3M and zero open-market buys in the last 12 months; largely option-exercise-and-sell mechanics but no insider is stepping up with cash.
m25
Thin liquid cushion relative to leverage
$2.81B cash is only 4.1% of market cap and small next to $26.6B of debt — refinancing markets have to stay open.
This is a genuinely elite operating business — the margin structure and cash conversion are the fingerprint of a moated aftermarket monopoly, and management has protected per-share value rigorously. My only real hesitation is the balance sheet: $26.6B net debt against $1.82B FCF is not accidental, it is the model, but it caps how high I will grade the enterprise. In good aerospace cycles this looks like a fortress; in a severe air-traffic shock it looks materially more fragile than the P&L suggests. Strong, not Fortress.
Verify before trusting this (5)
  • Debt maturity ladder and weighted average coupon vs current refi rates
  • Aftermarket vs OEM revenue mix and organic growth ex-acquisitions
  • Customer/platform concentration in defense and commercial aerospace
  • Whether recent insider option-exercise-and-sell activity is 10b5-1 plan-driven
  • Any covenant headroom given the leverage profile
Valuation / Mispricing
-75
Rich
edge √Σ 25 · risk √Σ 122 · conf 7/10
Price $1,240 vs deserved ~$697 (signal-adj) to ~$847 (anchored-PE ceiling) — roughly 32% to 44% above deserved, no margin of safety. attractive below $850.00

Every valuation lane points below the tape: DCF $602, EPV floor $542, anchored P/E $846, composite $648, signal-adjusted $697. Even the most generous method (anchored P/E, which already embeds premium multiples for the aftermarket monopoly) implies ~$846 versus a $1,240 print — a ~32% overshoot on the friendliest read, and ~44% on the composite. This is not a case where one lane is a runaway; the lanes cluster in the $540-$850 band, which tightens conviction that the market is capitalizing near-perfect execution.

Cheap signals 1
m25
Quality partially earns the premium
60% gross margins, clean earnings (quality score 2), and disciplined per-share stewardship do deserve a premium multiple — which is why anchored-PE lands highest at $846, not why $1,240 is defensible.
Rich / priced-in 4
m72
Price ~78% above signal-adjusted FV
$1,240 vs $696.83 signal-adjusted composite implies -44% downside; even blending in the friendliest lane the gap is a third.
m68
Every lane below price
DCF $602, EPV $542, anchored-PE $846 — no method, including the multiple-based one that already rewards the moat, gets to today's quote.
m55
Priced for perpetual monopoly rent
To justify $1,240 the market needs sustained aftermarket pricing power, uninterrupted defense budgets, and no OEM/airline pushback — the bear case is precisely that those rents are near a ceiling.
m45
Leverage amplifies any multiple compression
$26.6B net debt on $1.82B FCF means equity value is highly sensitive; a modest de-rate compounds through the cap structure.
I love the business, I do not love the price. Four independent lanes land between $542 and $847 and the stock trades at $1,240 — that is not a mispricing in my favor, it is the market paying full freight for a known-elite compounder. I would need it in the $800s, ideally sub-$850, before the aftermarket monopoly is priced with any cushion. Today it is Rich; fairly-valued would require me to believe the anchored-PE lane and even that leaves no margin.
Verify before trusting this (4)
  • Aftermarket pricing/volume trends in latest 10-Q and transcript — any sign of airline pushback or price givebacks
  • Defense mix and book-to-bill; program cadence into FY guidance
  • Interest expense trajectory and refinancing schedule against the $26.6B debt stack
  • Any large special dividend signal that changes the per-share cash-return math
General Sentiment
+54
Tailwind
tail √Σ 110 · head √Σ 49 · conf 7/10

The non-fundamental setup is favorable. TransDigm just printed a Q3 beat and raised FY26 sales, EBITDA and commercial aftermarket guidance - exactly the kind of headline that feeds the platform-monopoly archetype the market already loves. News flow is uniformly reverent ('compounder', 'monopoly or PE in disguise'), reinforcing the cult-medium narrative with strong intensity. Analyst tone is implicitly positive given target/estimate revisions typically follow a raised guide. With beta 0.91 and a defensive aerospace-aftermarket profile, TDG is minimally exposed to the mildly risk-on tape but also insulated from macro headwinds like the 4.65% 10y and PE-26 market. The Heico income piece nearby also signals investors are treating this sub-sector as a place to sit, not sell. The counter-pressure is the 79% premium to DCF: durability is only 'moderate' and any crack in the aftermarket pricing story (airline/OEM pushback headlines, a defense budget scare) would hit hard because so much of the cap is narrative. For now, no such crack exists in the tape - post-print momentum, raised guide, and a friendly regime dominate.

Tailwinds 4
m72
Beat-and-raise reinforces the monopoly story
Q3 exceeded expectations and management raised FY26 sales, EBITDA and aftermarket outlook - a direct feed for the platform-monopoly narrative that carries this multiple.
m60
Reverent media framing
Coverage explicitly uses 'compounder' and 'monopoly' language - the cult narrative is being actively renewed post-print, keeping marginal buyers engaged.
m45
Strong price momentum
15.8% CAGR and improving 3y trajectory mean systematic/CTA and momentum flows are on this name's side, not against it.
m35
Calm risk-on tape, low-beta defensive
Beta 0.91 and aerospace-aftermarket profile means the mildly risk-on regime is a light tailwind and macro stress would land softly if it came.
Headwinds 2
m42
Premium built on belief, not fundamentals
With price ~79% above DCF and durability only moderate, sentiment risk is asymmetric - any airline/OEM pushback or aftermarket-pricing crack would de-rate quickly.
m25
Rate and market-PE backdrop
10y at 4.65% and market PE 26 is a low-grade drag on long-duration, high-multiple names like TDG, though muted by low beta.
Net tailwind, and it is stock-specific: a beat-and-raise into a calm tape, a cult narrative getting actively re-fed by the press, and a low-beta profile that shrugs off the macro drag. The 79% premium to DCF is a real vulnerability, but that is a valuation problem, not a current sentiment problem - nothing in the tape is challenging the story right now. I lean tailwind with medium-high confidence; the setup only flips if an airline/OEM pricing-pushback headline or a defense-budget scare punctures the aftermarket narrative.
Verify before trusting this (4)
  • Any airline or OEM public pushback on TransDigm spare-parts pricing (congressional or DoD IG mentions historically move this name)
  • Post-print analyst target revisions and whether the raise is fully absorbed or leaves further upgrades
  • Defense budget headlines or continuing-resolution risk that could dent the aftermarket-plus-defense narrative
  • Whether aerospace peers (HEI, HWM) hold their bid - a sector rotation out would drag TDG regardless of its own print
The market-wide tape + this name's exposure to it (beta / sector / narrative durability). Context on the non-fundamental pressure — not a call on the business or the price. processId: detail-general-sentiment
AI Impact
+36
Mildly favorable - low exposure is the finding
opp √Σ 88 · thr √Σ 0 · conf 7/10

TransDigm sells physical, certificated, mission-critical hardware whose economics rest on regulatory position and installed base rather than information processing, so cheap intelligence reaches it only indirectly: modestly favorable on the cost side (engineering, planning, SG&A across a decentralized structure with already-extreme cost discipline), modestly adverse on the demand side (condition-based maintenance rationalizing spare consumption, AI-enabled procurement transparency letting airlines and the DoD benchmark prices harder, cheaper engineering economics for PMA entrants at the margin). The monetized unit — a replacement part on an aircraft that must fly — survives intact; the risk to the multiple is pricing pushback and cycle, which is not an AI story. Net: a real but second-order tailwind, with the honest finding being low exposure rather than a dramatic mechanism.

AI opportunities 7
m58
Underlying Need Persistence
Aircraft in service will need certificated replacement hardware regardless of how cheap intelligence gets.
m44
Solution Persistence
Replacement will still be a certificated part from the approval holder for the life of each platform.
m28
Responsibility Transfer
TransDigm holds airworthiness accountability that no customer wants to assume.
m29
Scarcity Migration
As engineering and software become abundant, certificated positions on flying platforms become relatively scarcer.
m19
Customer DIY Preference
Airlines will not become certificated component manufacturers no matter how cheap the engineering gets.
m11
AI Margin Conversion
Savings likely stick because pricing is set by position, not cost pass-through.
m19
Revenue Unit Durability
The monetized unit — a replacement part event — survives, but condition-based maintenance can thin its frequency.
AI threats 0

None surfaced.

AI is not the variable that decides TransDigm — exposure is genuinely low (27) and the net effect mildly positive, so judge this name on pricing pushback and the cycle, not on machine intelligence. The shield here is regulatory, not technical: certificated design approvals on 30-year platforms are the scarce asset, and cheap intelligence makes them relatively scarcer, not cheaper to copy — hence ai_position 61 with a narrow 41/60/73 range. The one AI mechanism worth pre-positioning on is dual: AI-assisted PMA engineering plus condition-based maintenance attacking aftermarket volume, so watch the price/volume decomposition of aftermarket growth and PMA filings against TDG part numbers rather than any AI product announcement. Cost-side AI is real but modest against an already 47% operating margin.
Verify before trusting this (8)
  • share of revenue that is sole-source
  • new platform win rate
  • acquisition multiples for certificated niches
  • global flight hours and fleet utilization
  • aftermarket revenue vs. flight-hour growth
  • fleet retirement and delivery rates
  • PMA penetration on TDG part numbers
  • additive manufacturing approvals for spares
The structural effect of the AI wave on this specific business over the next ~5 years — demand, cost leverage, moat, barriers to entry, position in the AI stack. The reality beneath the AI story, not the story's market pressure (General Sentiment owns that) — and not a call on the business today or the price.
Growth Outlook
not run

This lens hasn't been run for this ticker yet.

The forward growth verdict — is the business itself likely to grow (next 2 quarters / year 1 / years 2–3), judged against its category and against printed expectations. The full horizon ladder + creme renders on the Growth Outlook card above. Not a call on the price (Valuation owns that) or the tape (Sentiment owns that).
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Lenses kept deliberately separate — Company Quality (price-agnostic), Valuation (price-conditional), General Sentiment (non-fundamental macro/narrative pressure), AI Impact (structural ~5yr AI exposure), and Growth Outlook (the forward growth verdict). The scores are not blended. Filing-level items (convertibles, lock-ups, customer concentration) are v2 — see each lens's "verify."
Price Prediction
Unavailable View weakness chain →

Prediction unavailable. valuation-synthesis has no result for TDG — the prediction needs its fair-value anchors.

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My Notes personal — only you see this
v1.1.562 · 9b2927c4 · 2026-08-22 16:52:06