Trending
The biggest growth opportunities can start as tiny pieces of a much larger company.
When most investors look for great growth stocks, their eyes go straight to the same number: revenue growth.
A company growing sales 50% a year naturally seems more exciting than one growing 15%.
There is nothing wrong with that instinct. Fast revenue growth is usually a sign that something is going right. And plenty of the greatest stocks in history grew at breakneck speed for years.
But if you’re only watching the headline growth rate, you’re usually too late.
Here at Grow or Die, we’ve spent the past few months studying the greatest growth stocks of our time. Companies like Nvidia, Amazon, Microsoft, and several others.
We wanted to find what investors could have spotted before the growth took off.
And one pattern kept showing up. The biggest opportunity was often visible earlier than most investors realized. You just had to look beneath the surface.
Look for the business inside the business.
Especially when a relatively small piece starts growing much faster than everything around it.
Most of the time, a new business looks almost insignificant next to the company’s main source of revenue. If the opportunity is big enough, though, that little side business can eventually surpass everything else.
Consider Nvidia. What if I said you could spot the AI opportunity years before ChatGPT came out?
For years, most people knew Nvidia as a gaming-chip company. Gaming was the big business, so naturally that was where investors focused their attention.
But underneath it, Nvidia’s chips were finding their way into data centers, scientific computing and artificial intelligence. Nvidia had also spent years building CUDA, software that allowed programmers to use its GPUs for far more than producing better video-game graphics.
If you paid close attention, the numbers were already giving you a clue about where the big opportunity was. By 2018, Nvidia’s data-center business was growing at a triple-digit rate, even though gaming still generated far more revenue. Yet few investors thought of Nvidia as an AI stock.
You had an established business paying the bills. But another business inside it was growing much faster. And it was opening the door to a market that could eventually become far larger than Nvidia’s traditional market.
Amazon gave investors a similar clue with AWS.
For most of its early life, Amazon was an online retailer. Investors watched merchandise sales, customer growth, shipping costs and whether Jeff Bezos would ever turn all that revenue into meaningful profits.
Meanwhile, Amazon had built something under the surface. AWS.
AWS let other companies rent computing power, storage and other technology infrastructure from Amazon instead of buying and maintaining their own servers. What began as a useful side business was soon growing far faster than Amazon’s enormous retail operation.
Amazon started breaking out AWS results separately in 2015. Investors could suddenly see that this smaller business was growing at a blistering pace. And it was entering a market that could become enormous as companies moved their computing to the cloud.
Again, the headline Amazon revenue number could never show you that clearly. You had to look one level deeper.
Or consider Microsoft. By the early 2010s, the company hardly looked like a great growth stock to buy.
Windows was mature. PC sales were slowing. Microsoft had become so associated with its old products that many investors treated it as a lumbering technology giant whose best days were behind it.
Then the cloud business started showing up in the numbers. Azure was still tiny compared with Windows and Office, but it was growing at triple-digit rates. As Azure got bigger, the cloud began pulling the entire company back onto a faster growth track.
Anyone looking only at Microsoft’s overall revenue growth would have missed much of the story at first. Azure was growing at triple-digit rates in 2016. It took another two years before Microsoft’s overall revenue growth finally broke into the double digits. In that time, Microsoft stock nearly doubled.
Our mental model when looking at emerging growth engines…
Companies are constantly launching new products, entering new markets and promising that the next big opportunity is just around the corner. A tiny new project can sound exciting in an investor presentation without ever amounting to much.
So we want to see some smoke before we start looking for the fire.
Maybe the new division is already growing 50%, 80%, or 100% a year. Customers may be piling in. Management may be pouring more money behind it. Or executives may suddenly be spending much more time talking about it on earnings calls.
Most importantly, we want the opportunity ahead of it to be huge.
If a $500 million business grows into a $1 billion business and then runs out of room, it probably won’t transform a $100 billion company. But if that same business is taking its first steps into a market worth hundreds of billions of dollars, you could be looking at the company’s next big growth engine.
Which brings me to SpaceX.
I suspect most investors still hear the name and immediately think of rockets, Starship and Starlink. That makes sense because those are the businesses investors have traditionally associated with SpaceX.
But there is now another business growing inside it: AI.
SpaceX’s AI operation generated roughly $2.6 billion in revenue during the second quarter of 2026. A year earlier, the comparable AI businesses generated less than $750 million. That makes AI one of the fastest-growing parts of the SpaceX story.
Investors are still trying to decide what kind of company SpaceX actually is. All while a growth engine with a massive market is gathering steam underneath. If that AI business keeps growing anywhere near its current pace, investors may eventually have to rethink which business SpaceX is in.
That is exactly the kind of mismatch we want to hunt for when looking for the next great growth stock.