SoftBank Group

SoftBank Group shares tumbled over 8% amid a broader AI stock sell-off, reflecting investor concern over inflated sector valuations. This follows volatile trading for SoftBank, potentially erasing $53 billion in market cap this week, its worst performance since March 2020. Analysts attribute the decline to SoftBank being seen as an OpenAI proxy, vulnerable to shifting AI sentiment. Uncertainty around OpenAI’s partnerships and potential reliance on government funding are contributing factors. The downturn affected other Asian and U.S. tech companies, raising bubble concerns, though some experts see it as valuation fatigue rather than a collapse.