By Ben McPoland
Publication Date: 2025-11-25 08:51:00
Image source: Getty Images
Imagine investing in Nvidia stock in the early days, when today’s AI revolution was just a twinkle in CEO Jensen Huang’s eye.
The chipmaker’s stock market gains — up roughly 22,700% in a decade — are legendary. And this has understandably sparked a lot of interest in finding the next Nvidia-type hidden gem.
That seems to be the hope of people on investing platform AJ Bell anyway. Because according to company-complied data, the most popular stock bought there in the past day (24 November) was ITM Power (LSE:ITM).
Trading at 72p and sporting a modest market cap of just £449m, this stock is certainly still under the radar of many investors today. But it’s now up nearly 200% since March, so excitement is building.
Might it be a giant company in the making?
Green hydrogen pioneer
ITM Power makes electrolysers — industrial machines that split water into hydrogen and oxygen using electricity. As we all learned in chemistry class, water is two parts hydrogen and one part oxygen (H₂O).
Specifically, ITM builds the equipment needed to create green hydrogen, which can be used as a clean fuel for factories, trucks, steelmaking, chemical plants, and energy storage. Its NEPTUNE V units are the leading containerised product for mid-scale green hydrogen projects.
According to a 2020 report from Goldman Sachs, the global green hydrogen addressable market could potentially…
