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Editorial Advisory Board

  • Professor Andrea M. Armani, University of Southern California
  • Ruti Ben-Shlomi, Ph.D., LightSolver
  • James Butler, Ph.D., Hamamatsu
  • Natalie Fardian-Melamed, Ph.D., Columbia University
  • Justin Sigley, Ph.D., AmeriCOM
  • Professor Birgit Stiller, Max Planck Institute for the Science of Light, and Leibniz University of Hannover
  • Professor Stephen Sweeney, University of Glasgow
  • Mohan Wang, Ph.D., University of Oxford
  • Professor Xuchen Wang, Harbin Engineering University
  • Professor Stefan Witte, Delft University of Technology

TransDigm (TDG): 3 Reasons We Love This Stock

TDG Cover Image

Since June 2020, the S&P 500 has delivered a total return of 88%. But one standout stock has more than doubled the market - over the past five years, TransDigm has surged 217% to $1,460 per share. Its momentum hasn’t stopped as it’s also gained 15.7% in the last six months, beating the S&P by 16.3%.

Is now still a good time to buy TDG? Or is this a case of a company fueled by heightened investor enthusiasm? Find out in our full research report, it’s free.

Why Is TDG a Good Business?

Supplying parts for nearly all aircraft currently in service, TransDigm (NYSE: TDG) develops and manufactures components and systems for military and commercial aviation.

1. Core Business Firing on All Cylinders

Investors interested in Aerospace companies should track organic revenue in addition to reported revenue. This metric gives visibility into TransDigm’s core business because it excludes one-time events such as mergers, acquisitions, and divestitures along with foreign currency fluctuations - non-fundamental factors that can manipulate the income statement.

Over the last two years, TransDigm’s organic revenue averaged 14.9% year-on-year growth. This performance was fantastic and shows it can expand quickly without relying on expensive (and risky) acquisitions. TransDigm Organic Revenue Growth

2. Outstanding Long-Term EPS Growth

We track the long-term change in earnings per share (EPS) because it highlights whether a company’s growth is profitable.

TransDigm’s EPS grew at a remarkable 12% compounded annual growth rate over the last five years, higher than its 7% annualized revenue growth. This tells us the company became more profitable on a per-share basis as it expanded.

TransDigm Trailing 12-Month EPS (Non-GAAP)

3. Excellent Free Cash Flow Margin Boosts Reinvestment Potential

Free cash flow isn't a prominently featured metric in company financials and earnings releases, but we think it's telling because it accounts for all operating and capital expenses, making it tough to manipulate. Cash is king.

TransDigm has shown terrific cash profitability, putting it in an advantageous position to invest in new products, return capital to investors, and consolidate the market during industry downturns. The company’s free cash flow margin was among the best in the industrials sector, averaging 19.7% over the last five years.

TransDigm Trailing 12-Month Free Cash Flow Margin

Final Judgment

These are just a few reasons why we're bullish on TransDigm, and with its shares beating the market recently, the stock trades at 36.4× forward P/E (or $1,460 per share). Is now a good time to buy? See for yourself in our in-depth research report, it’s free.

Stocks We Like Even More Than TransDigm

The market surged in 2024 and reached record highs after Donald Trump’s presidential victory in November, but questions about new economic policies are adding much uncertainty for 2025.

While the crowd speculates what might happen next, we’re homing in on the companies that can succeed regardless of the political or macroeconomic environment. Put yourself in the driver’s seat and build a durable portfolio by checking out our Top 5 Growth Stocks for this month. This is a curated list of our High Quality stocks that have generated a market-beating return of 183% over the last five years (as of March 31st 2025).

Stocks that made our list in 2020 include now familiar names such as Nvidia (+1,545% between March 2020 and March 2025) as well as under-the-radar businesses like the once-micro-cap company Kadant (+351% five-year return). Find your next big winner with StockStory today.

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