SoftBank Group is trading at $18.34, down 14.00%, after AI-related stocks sold off on September 14, 2026.
- Anthropic and OpenAI leaders called for slower AI development, pressuring SoftBank because of its substantial OpenAI exposure.
- Broader technology weakness, elevated rate concerns, and anxiety over AI valuations added pressure.
- The recently announced $11.87 billion OpenAI financing facility did not offset negative sector sentiment.