This Japanese tech company beat Nvidia, Google, Microsoft and all other Silicon Valley giants to become the best-performing stock of 2025

Nvidia dominated a majority of headlines in 2025 in the tech industry with other Silicon Valley giants like Google, Microsoft and OpenAI witnessed boom in their fortunes. However, the company that grew the most in 2025 is not based in the US but Tokyo, Japan. The crown for the world’s best-performing stock of 2025 went to Kioxia Holdings that was either dismissed by investors or ‘barely noticed’.

According to a report by Bloomberg, Kioxia’s shares skyrocketed a staggering 540% in 2025, outperforming every other company in the MSCI World Index.