SoftBank Group is trading at ¥5,803.00, down 3.92%; no verified company announcement or reliable report directly explains the decline on October 13, 2026.
- SoftBank’s published news page lists releases dated October 9 and earlier, with no new October 13 catalyst.
- Recent coverage has discussed financing concerns around SoftBank’s OpenAI investment, but that background does not establish the cause of this move.