SoftBank stock slips in Tokyo as $41bn OpenAI investment and $4bn DigitalBridge deal take center stage
NEW YORK, January 1, 2026, 08:19 ET — Market closed SoftBank Group shares fell on the Tokyo Stock Exchange in the final trading session of 2025 after the company said it had completed a $41 billion investment in OpenAI, deepening CEO Masayoshi Son’s bet on artificial intelligence. The stock closed down 1.9% at 4,400 yen. Reuters The moves matter because…