SoftBank Group has halted talks about an acquisition of US data center operator Switch, a setback to founder Masayoshi Son’s ambition to roll out Stargate AI infrastructure. according to people familiar with the matter, according to a report by Bloomberg. Japan’s second-richest man SoftBank Group chairman Masayoshi Son has reportedly ‘dropped’ plans to buy the US data center operator Switch Inc. The deal would have been one of the Japanese company’s biggest to date.
The Tokyo-based company has taken an 11% stake in OpenAI, injecting $22.5 billion just in December 2025. It bought US chip designer Ampere Computing for $6.5 billion and announced a $5.4 billion acquisition of ABB Ltd.’s robotics unit. In the past one year, SoftBank has doubled down on its bets in AI. To finance some of that cost, SoftBank has sold down its T-Mobile US shares. Not just this, the company also has unloaded its entire Nvidia stake to fund its OpenAI stake.