According to Forbes, SoftBank Group shares crashed 10% on Wednesday amid a global stock selloff, wiping $13.1 billion from founder Masayoshi Son’s net worth in a single day. The 68-year-old billionaire remains Japan’s richest person with $71.5 billion, but suffered the biggest wealth drop among all Asian billionaires. The selloff was triggered by disappointing results from U.S. tech firms like AMD and Super Micro Computer, with investors growing concerned that AI companies can’t meet growth expectations. Japan’s Nikkei 225 index fell 2.5% and South Korea’s KOSPI dropped 2.9% as risk-averse sentiment spread across Asian markets. SoftBank has become viewed as a proxy for investing in OpenAI, since Son has directed the firm to fund several of the ChatGPT creator’s financing rounds.
The AI Proxy Trade Comes Back to Bite
Here’s the thing about SoftBank – it’s become the ultimate AI hype vehicle. When investors can’t directly buy into OpenAI (valued at $500 billion in October), they buy SoftBank stock instead. It’s what analysts call a “high-beta expression of Asia’s AI trade,” which basically means it swings wildly with market sentiment about artificial intelligence. And right now, that sentiment is turning skeptical.
The company’s shares are still up almost 150% this year even after Wednesday’s bloodbath. That tells you everything about how much optimism had been baked into the stock. Investors assumed “a lot of upside” according to one analyst, but now they’re wondering if AI companies can actually deliver on those sky-high expectations. When AMD and Super Micro Computer disappoint, it sends shockwaves through the entire ecosystem.
Son’s Big AI Bet Beyond OpenAI
Masayoshi Son isn’t just betting on OpenAI though. He’s been making moves into what he calls “physical AI” – basically fusing robotics with artificial intelligence. Remember that $5.4 billion acquisition of ABB’s robotics unit back in October? That wasn’t just a random purchase. Son envisions creating super intelligent machines that combine physical capabilities with AI brains.
But here’s the problem: when you’re the public face of AI investing in Asia, every market tremor hits you hardest. SoftBank’s heavy weighting in the Nikkei actually magnifies market drops, creating this feedback loop where falling tech sentiment drags down SoftBank, which then drags down the broader Japanese market even further. It’s become too big to ignore.
The Reality Check Might Stick Around
So how long will this adjustment last? According to one investment chief, we could be looking at about three months of consolidation if no new positive catalysts emerge. Markets need time to “get rid of the overheat” as he put it. That’s investor-speak for “everyone needs to calm down about AI for a bit.”
The fundamental question remains: can AI companies actually generate the revenue to justify these valuations? We’re seeing the first real test of that thesis now. When even established players like AMD can’t meet expectations, it makes you wonder about the entire ecosystem. SoftBank, as the most visible AI proxy, will continue to feel every shift in sentiment. Masayoshi Son’s rollercoaster ride is far from over.
