SoftBank Group shares jumped 13% in Tokyo trading, leading a broad Asia technology rally. The surge followed a sharp rise in Nvidia's stock price after the AI chip leader reported strong quarterly earnings. Investors are betting SoftBank's portfolio, which includes stakes in chip and AI firms, will benefit from the sector's momentum.

The move adds over $20 billion to SoftBank's market value, reflecting renewed investor appetite for tech stocks after a volatile period. CEO Masayoshi Son's focus on artificial intelligence investments is now under the spotlight, with the rally potentially easing concerns about the company's heavy debt load.

Traders will watch if this rally holds, especially as the Federal Reserve's policy outlook and global chip demand remain key variables. For SoftBank, the question is whether this marks a sustainable turnaround for its Vision Fund investments or a short-term reaction to a peer's success.