SoftBank’s Masayoshi Son Becomes Asia’s Richest Person Amid AI Boom

Masayoshi Son has overtaken Mukesh Ambani to become Asia's richest person, amassing a $97 billion fortune as SoftBank shares surge on an AI-driven rally. The Japanese billionaire's net worth hit a record high, fueled by SoftBank's aggressive bets on artificial intelligence through its Vision Fund and portfolio companies like Arm Holdings.

Son, the founder and CEO of SoftBank Group, now commands a personal fortune of $97 billion, according to Forbes. This leap places him ahead of Indian conglomerate Reliance Industries' chairman Mukesh Ambani, whose net worth stands at roughly $90 billion. The shift reflects the market's soaring valuation of AI-exposed stocks, with SoftBank's shares climbing more than 40% in 2026.

The AI boom has rewritten the global wealth map. Son's comeback is particularly striking: just a few years ago, SoftBank was nursing billions in losses from the WeWork debacle and a downturn in tech valuations. But the Vision Fund's pivot toward generative AI and chip design—through its stake in Arm—has reignited investor confidence. Arm, which SoftBank took private in 2016 and still holds a majority stake, has become a key AI chip designer, powering everything from smartphones to data centers.

Son has long positioned himself as a visionary of the AI era. In recent shareholder letters, he called artificial intelligence "the greatest revolution in human history." His strategy involves doubling down on infrastructure, robotics, and autonomous systems. The Vision Fund has invested over $10 billion in AI startups this year alone, including stakes in OpenAI and Cohere, betting that the demand for large language models and AI hardware will only intensify.

Mukesh Ambani, meanwhile, has seen his wealth plateau amid regulatory challenges and slower growth in Reliance's energy and telecom businesses. While Ambani remains India's richest person, the gap between him and Son has widened as SoftBank's market cap approaches $450 billion. Son's personal fortune still trails global leaders like Elon Musk and Bernard Arnault, but his ascent to the top of Asia signals a shift in regional wealth dynamics toward technology and away from traditional industry.

Masayoshi Son net worth is now firmly tied to the health of the AI sector. Analysts warn that if the AI hype cycle cools, SoftBank's shares could correct, eroding Son's fortune as quickly as it grew. But for now, the market sees no end to the appetite for chip talent and generative AI tools. SoftBank is also exploring a secondary listing for Arm in Tokyo, a move that could further boost Son's holdings.

Looking ahead, Son is expected to continue his aggressive AI spending spree. He recently announced a new $50 billion "AI Infrastructure Fund" aimed at building data centers and energy solutions for AI workloads. If that bet pays off, Son could not only hold the Asia crown but challenge for the title of world's richest person. The next milestone to watch is SoftBank's quarterly earnings, due in August, which will reveal whether its AI-driven profits are sustainable. For now, Asia's wealth has a new face—and its name is Masayoshi Son.