It’s no secret that growth stocks in the artificial intelligence (AI) space are making investors a lot of money right now. Over the last few months, well-known stocks such as Nvidia, Alphabet, and Palantir have soared.
But not every AI stock’s making headlines and seeing huge amounts of hype. Here’s a look at three lesser-known shares that are quietly making investors a fortune.
First up, we have Snowflake (NYSE: SNOW). It offers solutions that enable businesses to get their data structured properly for AI use.
Late last year, I named this as my top US growth stock for 2026. That call was pretty good – it’s up about 75% year to date. I still believe it’s worth considering however. Recently, a company insider said he’s expecting revenue to more than double in the next few years.
If the company can achieve that kind of growth, I’d expect the share price to be materially higher in a few years’ time.
A risk here is competition from rival Databricks. Not only could this company capture market share but if it does an IPO, it could steal investor capital.
I’m optimistic about the long-term outlook though. For my portfolio, this is now a core AI holding.
Next, we have Lam Research (NASDAQ: LRCX). It makes highly specialised machinery that’s critical for manufacturing the advanced chips that are used in AI.
It recently provided guidance that was above Wall Street’s estimates as chipmakers (like Taiwan Semi and Intel) ordered more of its equipment. So it clearly has momentum right now.
Now, this stock’s up about 120% this year (and more than 60% in three months). After that kind of run, I wouldn’t chase it as the valuation’s risen considerably.
If it was to drop back 10%-20% though (which it probably will do at some point), I think it could be worth considering. China remains a risk as the company generates a large chunk of revenues there, but the long-term growth story associated with semiconductor production looks compelling, in my view.
Finally, we have Zscaler (NASDAQ: ZS). It’s a fast-growing cybersecurity company that is helping companies manage AI-related threats
This stock is up about 80% this year. Yet despite these impressive gains, no one is really talking about it.
From an investment perspective, Zscaler’s higher up on the risk spectrum. Not only does it face intense competition from larger players like CrowdStrike and Palo Alto Networks but it’s only just turning profitable now.
Taking a long-term view though, I see a ton of potential. Because AI’s going to dramatically increase the threat landscape for businesses.