This Was the Top-Performing Stock in the World in 2025. You Probably Have Never Heard of It.

I like diving into more unconventional companies investors may not have heard of. In this piece, I decided to do just that—look at the top-performing AI stock many investors may not have heard of. I say that because I'm one such investor who didn't recognize this name off the top of my head when I started my research on this piece. Stock screeners can help investors find some unique opportunities, and that's what they're for. But I wasn't expecting to see Kioxia (KXIAY) atop the list of best-performing gr ...