Jim Cramer Warns About NioCorp (NB)’s High Share Price Gains

We recently published Jim Cramer Discussed These 13 Stocks & Shared Major Warning For Rare Earth Stocks. NioCorp Developments Ltd (NASDAQ:NB) is one of the stocks Jim Cramer recently discussed.

NioCorp Developments Ltd (NASDAQ:NB) is another American rare earth metal company whose shares have surged in 2025. Year-to-date, they have gained 538%. The firm is currently focusing on producing the rare earth metals scandium and niobium. NioCorp Developments Ltd (NASDAQ:NB)’s shares, like those of its rare earth metal peers, have surged due to China restricting the metals’ global supply. The firm is currently focused on developing its Elk Creek project, where it aims to mine scandium, niobium, and titanium from a single ore. Cramer discussed NioCorp Developments Ltd (NASDAQ:NB)’s share price gains and advised viewers to sell the stock:

Jim Cramer Warns About NioCorp (NB)'s High Share Price Gains

“Yeah I mean that’s a real company but we have William Blair saying . . .they love NioCorp, , ,These things are all like, unless Trump buys a stake in each of these one, you wanna sell these. You really do. . .because, why? Because, Antimony, it’s up 532% and they’re making a bid for some Australian rare earth, at six shares for one? That’s sounds like very 2000. Where they started merging, remember, cause they knew their stocks were too high.NeoCorp is up 432. . .

“Just buy MP Materials, that’s a real company.

“Do you think you’re early when a stock is up 432% for the year like NioCorp? Do you think you’re early?”

While we acknowledge the risk and potential of NB as an investment, our conviction lies in the belief that some AI stocks hold greater promise for delivering higher returns and doing so within a shorter time frame. If you are looking for an AI stock that is more promising than NB and that has 10,000% upside potential, check out our report about this cheapest AI stock.

READ NEXT: 30 Stocks That Should Double in 3 Years and 11 Hidden AI Stocks to Buy Right Now.

Disclosure: None. This article is originally published at Insider Monkey.