SoftBank Group has officially surpassed Toyota to become Japan’s most valuable company by market capitalization. Masayoshi Son’s shareholding value stands at approximately $100 billion, more than quadrupling compared to one year ago. This turnaround stems from his strategic pivot after 2022: following setbacks in investments such as WeWork and a halving of its stock price, he decisively divested assets like Alibaba and T-Mobile, shifting focus entirely to AI. Currently, SoftBank’s cumulative investment in OpenAI reaches $64 billion, and it announced an injection of at least $52 billion into data centers in France. To support these massive expenditures, SoftBank employs a strategy combining high leverage and internal fund circulation: using Arm’s rising valuation as collateral for financing to feed back into OpenAI, while SoftBank itself becomes the largest customer for both Arm and OpenAI. Furthermore, SoftBank’s board approved a $3 billion loan to Masayoshi Son, granting him exclusive rights to 17.25 percent of the profit sharing from the AI fund, while the principal risk of $139 billion remains borne by public shareholders. To sustain this financial inflow, SoftBank is advancing the spin-off and listing of subsidiaries focused on robotics and new energy, planning to cover over 80 percent of data center construction costs through project finance. Although Masayoshi Son acknowledges that the AI industry may face a “bubble clearing,” he insists this represents an “irreversible evolution,” asserting that only “true creators of value” can navigate the cycle and achieve hundredfold growth.