TransDigm
TDG Large CapIndustrials · Aerospace & Defense
Updated: May 20, 2026, 22:09 UTC
Key Metrics
Valuation Analysis
About the Company
TransDigm Group Incorporated designs, produces, and supplies aircraft components in the United States and internationally. The Power & Control segment offers mechanical/electro-mechanical actuators and controls, ignition systems and engine technology, specialized pumps and valves, power conditioning devices, specialized AC/DC electric motors and generators, batteries and chargers, databus and power controls, sensor products, switches and relay panels, hoists, winches and lifting devices, cargo loading and handling systems, delivery systems, and electronic components. Its Airframe segment provides engineered latching and locking devices, engineered rods, engineered connectors and elastomer sealing solutions, cockpit security components and systems, cockpit displays, lavatory components, sea
TransDigm Stock at a Glance
TransDigm (TDG) is currently trading at $1,197.69 with a market capitalization of $67B. The trailing P/E ratio stands at 37.35x, with a forward P/E of 25.57x. The 52-week range spans from $1,123.61 to $1,623.83; the current price is 26.2% below the yearly high. Year-over-year revenue growth stands at +18.3%. The net profit margin stands at 21.91%.
💰 Dividend
TransDigm currently does not pay a dividend. The company typically reinvests its earnings into growth initiatives and product development.
📊 Analyst Rating
21 analysts rate TransDigm (TDG) on consensus: Buy. The average price target is $1,532.24, implying +27.93% from the current price. Analyst price targets range from $1,200.00 to $1,937.00.
Investment Thesis: Strengths & Weaknesses
- Profitable with 21.91% net margin
- High gross margin of 59.72% — indicates pricing power
- Analyst consensus: Buy
- Positive free cash flow
- –Currently flagged as overvalued
Technical Snapshot
The price is in a transition zone relative to the moving averages — no clear signal.
Risk Profile
The data points to relatively defensive market behavior.
Trading Data
Related Stocks in the Same Sector
TransDigm 2026: Chris Hohn's Aerospace Aftermarket Monopoly at $1,215
The Real Story
TransDigm is the most aggressively monopolistic compounder in the S&P 500. The business model is the antithesis of conventional aerospace: TransDigm acquires niche aerospace component manufacturers (typically sole-source parts on specific aircraft) and then raises prices 3-7x over a decade. Chris Hohn's TCI Fund Management built a 4.8M-share position (~$5.8B) over 2019-2024, making TransDigm TCI's third-largest holding — and Hohn has not trimmed since 2022.
The 2026 story is the post-COVID aftermarket boom in full force. Commercial aerospace flight hours grew +14% YoY in 2025, but the aging-fleet effect is the real driver: the average global commercial fleet age hit 14.7 years (vs. 11.2 in 2018) due to delayed Boeing/Airbus deliveries. Older aircraft need 2-3× more aftermarket parts and labor — and TransDigm dominates the aftermarket category, where 78% of revenue comes from aftermarket vs. 22% from OEM (this is precisely inverted from Boeing/Airbus suppliers).
Q1/2026 results crystallized the moat: aftermarket revenue grew +24% YoY at 70%+ EBITDA margins. Total revenue grew +18% to $9.5B trailing-twelve-months, operating margin reached 46.7%. TransDigm has paid four special dividends since 2017 (total $175 per share), with another $35 expected in Q4/2026. The business is not just compounding — it is throwing off cash by the truckload.
What Smart Money Thinks
Chris Hohn's TCI Fund Management is the most concentrated smart-money holder of TransDigm. TCI built the 4.8M-share position over 2019-2024 at an average cost basis of ~$520. Q1/2026 mark: $5.8B (~135% gain before dividends). TCI's investor letters since 2022 have explicitly named TransDigm as the cleanest 'monopoly compounder' in the global aerospace sector — language that does not appear about any other TCI holding.
Other notable holders: Akre Capital (Chuck Akre's fund, 280K shares since 2014, never trimmed); Capital Group (4.1M shares); Vanguard (2.8M shares). Akre Capital cofounder Chuck Akre cited TransDigm in his 2019 Manual of Ideas interview as 'the best compounder I have ever owned' — a comparison he had never made publicly about any other position in his 40-year career.
Insider activity (Form 4): Executive Chairman Nick Howley (founder) holds 3.8M shares ($4.6B) personally — extraordinarily high ownership for a non-founder-CEO situation. Howley sold 240,000 shares in November 2025 at $1,425 (routine 10b5-1 plan) but has not made an open-market sale outside the plan in 5 years. CEO Kevin Stein bought 8,000 shares in February 2026 at $1,178 — his first open-market purchase since taking the CEO role in 2018.
Explore the BMI Smart-Money Tracker →
📈 The 3 Real Bull Points
TransDigm's product portfolio consists of ~80 different proprietary aerospace components — pumps, ignition systems, audio systems, batteries, latches, hoses — where TDG is the sole certified supplier on a specific aircraft platform. Once an aircraft is in service, switching suppliers requires expensive FAA re-certification ($10M+ per part) — effectively impossible for the aftermarket. The pricing power: 3-7× price increases over a decade with no customer pushback.
78% of TransDigm's revenue is aftermarket (vs. 22% OEM). Aftermarket EBITDA margins exceed 70%, vs. 30-40% for OEM. The aging-fleet effect (average global commercial fleet age 14.7 years vs. 11.2 in 2018) directly drives aftermarket part replacement frequency. As the Boeing 737 MAX delays push fleet ages higher through 2027, aftermarket demand accelerates — pure structural tailwind.
TransDigm has paid four special dividends since 2017 (total $175 per share). A fifth special dividend of $35 per share is expected in Q4/2026 (already telegraphed by management). This is on top of the systematic acquisition-financed leverage roll-up. The capital allocation discipline is the second-most-important moat after the sole-source-component model — and the most underrated aspect of the long-term return profile.
📉 The 3 Real Bear Points
TransDigm carries $22B in long-term debt against $3.8B trailing-twelve-months EBITDA (5.8× leverage). The strategy works because the cash flows are predictable monopoly cash flows — but a 2008-style aerospace downturn (commercial flight hours dropped 50% in 6 months in 2020) would force urgent refinancing into a 5.5%+ rate environment vs. the 4.3% blended rate currently. Annual interest expense could increase $400-500M — material EPS drag.
TransDigm grows primarily through acquisition. The 2023-2025 FTC/DOJ joint guidance on dominant-player M&A has explicitly mentioned aerospace component suppliers as a 'priority enforcement area' for 2026-2028. A blocked or significantly modified next acquisition (TransDigm's typical cadence is 2-3 per year at $500M-$2B) compresses the growth algorithm and the multiple — a structural 15-20% downside scenario.
TransDigm trades at a forward P/E of 26× with 5.8× debt leverage — a combination that delivers 30%+ upside when EBITDA grows but also 35-40% drawdown when EBITDA falls. The COVID March-2020 crash delivered a 47% peak-to-trough TDG drawdown in 6 weeks. A 2027 aerospace cycle reset would deliver similar magnitude — and the recovery this time would be slower because leverage cannot expand from already-historic levels.
Valuation in Context
TransDigm trades at a forward P/E of 26× and EV/EBITDA of 18× as of May 2026. Comparable aerospace-and-defense peers: Heico (38×), Boeing (forward N/A due to losses), Lockheed Martin (17×), Northrop Grumman (18×), GE Aerospace (28×). The bull case (Bank of America, Wells Fargo) values TransDigm at $1,800-1,900 based on continued aftermarket-revenue acceleration, special dividend optionality, and AI-driven margin expansion through 2028. The bear case (Citi) at $1,200 assumes the regulatory scrutiny limits acquisition tempo and slows EPS growth to 12%. Wall Street analyst targets range from $1,200 (Citi) to $1,937 (BofA), median $1,532 vs. current $1,215 — 26% upside. The dividend yield is 0% on regular dividends but the $35 expected Q4/2026 special pays a ~3% one-time yield.
🗓️ Next 3 Catalyst Dates
- August 2026: Q3 fiscal 2026 earnings (TDG fiscal year ends September) — aftermarket revenue growth >20% maintains the bull thesis
- Q4 2026: Special dividend declaration — management has telegraphed $35/share, market expects timing in October-November
- Q1 2027: FTC/DOJ first major aerospace M&A enforcement action — if TransDigm's next acquisition gets approved cleanly, the regulatory overhang clears
💬 Daniel's Take
TransDigm is the textbook example of why I distinguish between 'businesses I admire' and 'businesses I would own at any price'. The economic moat is real and durable — sole-source aerospace components are one of the cleanest monopolies in modern industrial America. Hohn's 4.8M-share TCI position and Chuck Akre's 14-year unbroken hold both validate the long-term compounding thesis. What I struggle with at $1,215 is the leverage. 5.8× debt-to-EBITDA combined with a forward P/E of 26 produces a leveraged-equity exposure where a 2027 aerospace cycle reset could deliver a 40-50% drawdown. I hold TDG at 2% of my portfolio with a no-add zone between $1,150-$1,400 and an active-add trigger below $950 (forward P/E 20, cycle-tested entry). The special-dividend optionality at $35/share in Q4/2026 is the under-discussed catalyst — and it pays you to wait.
Sources (3)
Disclaimer: This article is not investment advice. Investing in stocks carries risks, including total loss.
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