Masayoshi Son is that billionaire, and his latest bet makes his previous ones look like pocket change.

SoftBank’s founder has committed a staggering €75 billion, roughly $87 billion, to build AI data centers across France. The plan calls for 3.1 gigawatts of capacity by 2031, with potential expansion to 5 GW.

From WeWork wreckage to AI empire

SoftBank shares have soared nearly 80% in 2026, at one point briefly surpassing Toyota as Japan’s most valuable company.

The France announcement alone sent SoftBank shares up 14% over June 1-2. Year-to-date gains sit somewhere between 73% and 80%, depending on when you check.