Here's How This Quiet Aerospace Stock Turned $10,000 Into a Fortune. Todd Shriber, The Motley Fool Tue, August 11, 2026 at 3:25 PM GMT+2 4 min read TDG NVDA "Hidden gem" describes a high-performing stock that isn't generating much fanfare. In the hidden gem family, some names are undiscovered Hope Diamonds.
That's the 45.5-carat gem with an estimated value of up to $350 million. Admittedly, describing that level of jewelry prestige for any stock takes some liberties, but it is befitting of some names in the unheralded camp. TransDigm (NYSE: TDG) is a prime example.
This Rare Signal Is Flashing Again. In 2009, a "Double Down" signal flashed for a little-known chipmaker called Nvidia. For the first time in years, that same "Total Conviction" signal is flashing for a company 1/100th the size of Nvidia.
Continue » First, let's address the recent goings-on at this aerospace and defense parts supplier. The company reported fiscal third-quarter results last week, telling investors sales jumped 23% to $2.74 billion while adjusted earnings before interest, taxes, depreciation, and amortization (EBITDA) rose 19% to $1.5 billion. TransDigm stock has been a millionaire maker, and more long-term upside is possible. .
The industrial stock pulled back following the report, extending its 2026 loss to nearly 8%. As of Aug. 7, TransDigm trades 16.3% below its 52-week high, but the stock's history indicates its recent weakness may also be a buying opportunity. TransDigm's history matters Acknowledging that financial markets are forward-looking enterprises, a quick TransDigm history lesson is worth the time because it reveals how this nondescript aerospace stock is the definition of a compounder and a millionaire maker.
The company was formed in 1993 with starting equity of $25 million. After that, no additional equity was raised, but here we are discussing a stock with a market capitalization of $69 billion. TransDigm went public in 2006 at $21 share, and it closed at $1,225.25 last Friday.
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