LONG $TDG, IV of ~$2,300 | TransDigm is a global designer,...

LONG $TDG, IV of ~$2,300 | TransDigm is a global designer, producer, and supplier of highly engineered aerospace & defense (A&D) components. TDG pursues a unique and consistent strategy focused on proprietary and sole source parts with small costs relative to the larger value stream, has a disciplined acquisition playbook, and a mgmt. compensation mechanism that supports fundamental value creation and is highly aligned with shareholder value creation. TDG offers a solid risk/reward at current levels: Base case sees organic Revenue/EBITDA growth of ~6-8%/~8-10% over the mid-term, with M&A adding ~5%-7% EBITDA growth per year through cycle. Episodically, TDG issues special dividends at ~8%-10% of market cap per year. All-in, annual total returns should be in-line with TDG’s targets of generating private equity-like returns with the liquidity of public markets (~17.5%+ returns through cycle).

Business Overview: TDG emphasizes proprietary and sole source products, ~90%/~80% of revenues respectively, which yields defensible market positions with high barriers to entry. TDG has ~600K+ SKUs with its products designed into a large and growing installed base that are represented in every commercial and military aircraft in service. Sample products include seatbelts, cockpit security, parachutes, space equipment, ignition/control systems, pumps, and many others. The common theme of these products is that these are proprietary, highly engineered parts where TDG owns the IP and there are significant aerospace aftermarket (AM) revenue streams. Products are usually designed when an aircraft is being qualified by regulators, which makes it difficult for these products to be displaced. Hence, these products deliver subscription-like recurring revenue at high FCF margins for 50+ years.

TDG’s revenue mix by channel is ~31% Commercial AM, ~27% Commercial OEM, ~40% Defense (OEM+AM), and ~2% Non-Aviation. From an EBITDA split, TDG is ~ 75% AM and ~25% OEM. Relative to peers, TDG has a singular focus on niche businesses with outsized pricing power that’s protected by the following advantages: i) Regulatory (FAA approval processes are time consuming and expensive), ii) Economical (parts are highly engineered, which require significant upfront investments but then sell for modest volumes, resulting to small TAMs, iii) Stickiness (as due to regulation and industry risk aversion, AM parts are non-discretionary).

Industry Review: Within the A&D industry, the value chain can be parted out as: Raw/Sub-component Suppliers —> Parts & Components Manufacturing (Engines, Parts & Components, Aerostructures) —>End Customers (OEMs like Airbus and Boeing, AM). The Suppliers are a fragmented supplier base, and the FAA and OEM certification largely prevents efficient replacement. Within the Parts & Components Manufacturers, TDG focuses exclusively on Parts & Components, also a fragmented landscape with niche specialists. TDG focuses entirely on AM, which features high margins, stable demand given product life cycles of >50 years, and the protection of the certification process and IP rights.

Aircraft are highly complex systems with, depending on the model, each aircraft containing 300K to 7MN parts. Each individual part and the system must remain robust through highly variable and often inhospitable environments. Each aircraft must also be able to successfully operate through such conditions repeatedly, with each aircraft being in service for decades, given the large upfront investment. Lastly, there are enormous costs to failures in terms of lives lost, political costs, and capital risks. This results in a highly regulated and risk-averse industry, with the FAA requiring the aircraft to replace parts only with identical parts manufactured by the OEM and supplier; substitutes are only possible if the new part goes through the same expensive and time-consuming process.

TDG operates in an industry propelled by durable macro tailwinds and attractive structure: through the past decades, air RPM has compounded at 5.5%, worldwide aircraft installed base at 4% over, and U.S. defense spend at ~5%. These industry growth rates are poised to sustain given rising global wealth and increasing share of wallet of travel. Only ~12% of the global population fly each year (and ~80% have never flown at all) and only ~5% fly internationally.

This model, where suppliers like TDG see low margins on OEM but high margins in the AM, are structurally in place as it reduces the OEM’s upfront costs and supports a robust supplier system, which has been a greater emphasis since the COVID pandemic which saw a lot of supply chain destruction that’s still impacting OEM production to this date. OEMs are fundamentally not in the business of serving AM and is more incentivized to keep production scale predictable and reliable. OEMs are also incentivized to stick with just one supplier given the arduous certification process for each individual part. Pricing in the AM is also sustainable as these parts are low costs relative to the impact on the aircraft if they were not delivered at quality on time. Suppliers like TDG can price given above dynamics to maintain availability for low TAM, variable-delivery products. Within AM, ~80%-85% of TDG’s revenues come from parts generating <$3MN in annual sales vs ~$3Bn total revenues.

Industrial Design: Key to gaining conviction in TDG’s prospects for long-term compounding is to understand its industrial design: a unique strategy paired with a consistent, cult-like operating model in addition to the secular growth of A&D. This features:
-Predictability: Market share within niches is exceptionally defensible and demand for AM parts is highly recurring.
-Pricing Power: Niches protected by IP produce favorable economic dynamics that support ~4%-5% price increases over time.
-Leverage: Predictable and growing revenue, variable cost structure, and low capex (~2% of sales) supports mgmt.’s 5x-7x Net Debt/EBITDA target.
While the above can be applied to other A&D companies, TDG distinguishes its value creation via its well-designed operating model. Key features are:

Operating Model: There is a maniacal focus on value-based pricing, productivity, and profitable new business that has permeated every level of the organization since TDG’s inception.
-Value-Based Pricing: Mgmt. seeks to exceed internal inflation of 3% consistently, with the portfolio seeing ~5%-6%. The logic is that if a ~$1K component failing can ground a ~$50MN jet, then the quality and value of the part to the customer far exceeds its cost to manufacture. Pricing is reinforced with TDG’s sole source status and customer price sensitivity is also lower in AM.
-Productivity and Cost Improvements: TDG steadily improves the cost structure through detailed attention to the cost of each product and organization. Headcount has declined by ~9% from 2019 to 2025, despite EBITDA growing ~90%. Internally, mgmt. has a goal to keep costs flat on a real basis, offsetting for 3% inflation.
-Profitable New Business: TDG leverages its technical expertise and customer relationships to identify and win new businesses. In the contracting process, managers perform highly analytical, but conservative, DCFs to justify investment that feature IP control and limited liability. TDG works with its customers to identify unique solutions that solve customer needs that’re profitable; TDG does not do speculative R&D. TDG measures success with increasing shipset content on key platforms: +35% in B787, +45% in A350, +30% in A220, A320neo, and B737Max. Similar dynamics are seen in the Defense market.

Decentralized But Accountable Organization: TDG has ~55 operating units reporting to 8 EVPs and an extremely lean HQ. Corporate HQ is lean and mostly focused on capital allocation, some support functions, and talent development. TDG features low frequency, high impact decision making at the HQ while driving metric-focused execution and autonomy to the individual business units (BU). BU managers are granted autonomy but expected to drive results, with metrics being highly transparent, peer reviewed, and shared regularly. BU managers stay close to customers and focus on their specific business lines and have full P&L responsibility. EVPs serve as coaches, rather than players, conducting quarterly reviews and talent development.

Aligned Management: Insiders own ~10% of TDG stock. Compensation is heavily weighted towards equity/performance (93%), which vests entirely on performance and drives managers to act like owners. Base salary is only ~7% of annual senior mgmt. pay. Options vest with operating performance growing at least 10% (a proxy for TDG’s IV) and max payout only vesting at 17.5%, circling back to TDG’s goal to earning PE like returns.

Acquisition Playbook: M&A is a key driver for TDG’s value creation, accounting for half of EBITDA growth throughout its time as a public company. TDG has extensive databases and relationships with potential targets give it tremendous underwriting advantage, with TDG’s operating model offering proven playbooks to deliver target returns. TDG has a dedicated M&A team that identifies, studies, and executes transactions. TDG typically reviews ~500 businesses each year, of which it would sit down with the C-suite of ~25 targets. TDG on average closes 1-3 deals per year. Deals are sourced from strategics, private equity, and privately held companies.

TDG targets ~20% IRR for its M&A. For all transactions, TDG builds a 5yr LBO model. This usually involves 5-6x leverage and factors in the target’s end market, growth, productivity opportunities, pricing power, and inflation. TDG will compete intensely and is not willing to pay up if it believes it would meet the target. TDG seeks for underappreciated businesses that meet its core criteria but does not hunt for broken companies that need to be turned around. TDG has a well defined integration process that takes ~180 days and involves: i) presenting the TDG culture/strategy, ii) controlling working capital and establishing a financial plan, iii) evaluating key personnel, iv) reviewing OEM and AM contracts, v) implementing productivity plans, vi) organizing the company into BUs, vii) reviewing new projects, viii) reviewing HR, legal, and accounting. As TDG integrates acquisitions, it will at times divest certain acquired operating units that are not aligned with its strategy.

TDG has deployed ~$18BN into acquisitions since its 2006 IPO, which is half of total cumulative capital allocation, with annual capex equivalent to ~1.5x-2.0x cash from operations. Note ROICs have sustained around ~12%-16% from 2006-2025.

TDG defines its AM market based on global airline opex, which totaled ~$900BN, of which ~$125BN was on maintenance. Half of this or ~$60BN falls within TDG’s addressable commercial AM, which, based on TDG’s current revenue, is only ~4% penetrated, leaving significant runway for both organic and inorganic opportunities. TDG has acquired ~$5BN worth of sales from 2006-2025, assuming ~30% of this was Commercial AM, this means TDG has acquired ~$1.5BN Commercial AM revenues. Assuming TDG would acquire 2x this amount over the next 10yrs, this would require TDG to acquire ~$3BN worth of revenues, resulting in a Commercial AM TAM penetration of ~17% (2036 organic revenues of ~$5BN + ~$5BN vs ~$60BN flat). Note that TDG mgmt. explicitly plans to limit Defense revenues to ~30%-40% of revenues.

Earnings Power: Organically, TDG should sustain its ~5-7% growth clip (volumes tied to RPK/installed fleet and real pricing of ~3%+) and sustain incrementals of ~50%+ EBITDA (EBITDA margins can expand by ~100bps excluding M&A impact and short-term mix shifts, resulting to ~8%-10% organic EBITDA over the next 10yrs. M&A should add another ~5%-7% points of EBITDA growth per year through cycle given TDG’s proven playbook and TAM opportunity. TDG consistently converts ~55% of EBITDA to FCF (~2% working capital, ~2% capital intensity as % of Revenue). If TDG’s M&A cadence decelerates in any way, TDG can re-lever every year to repurchase or deliver special dividends equivalent to HSD of market capitalization.

Intrinsic Value: Base case sees IV of ~$2,300 assuming ~12% EBITDA growth over the next 10 years and terminal multiple of 20x, arguably a conservative multiple given TDG’s decades worth of real pricing power. Key to this is DCF is that this factors in ~$3BN (and growing) of annual special dividends equivalent to ~40%-50% of TDG’s EBITDA) distributed to equity holders keeping TDG’s leverage ratio pegged to 6x, which is basically distributable FCF to equity holders. This is the CF equity holders are entitled to, and unlike most companies, TDG can constantly de-lever, maintain its relatively high leverage ratio or maintain the financial risk profile consistent, to either increase the M&A pace or return cash to shareholders. For context, TDG did ~$5.2BN of special dividends in 2025 which resulted into a leverage ratio of 5.7x. Another way is looking out to 2030 EPS of ~$75 and applying an exit of 25x (below its ~30x-40x historical levels) and adding $100 worth of annual dividends (close to 2025 level) results into a price of ~$1,700 discounted to today at 10%. Bear case of only organic growth of 5% (basically industry) post 2029 and no margin expansion, no special dividends, and terminal multiple of 10x results to a price of ~$900, or 25% downside from today. Unless the A&D industry structure rapidly changes and TDG’s regulators crack down on TDG’s current and prospective businesses, this bear scenario is unlikely to unfold. $TDG