SoftBank Group is trading 5.83% down at ¥6,310, with coverage linking the October 2 decline to completion of its final $10 billion OpenAI investment tranche. -

SoftBank Group is trading 5.83% down at ¥6,310, with coverage linking the October 2 decline to completion of its final $10 billion OpenAI investment tranche. - The tranche brought its total investment to $64.6 billion and its stake to about 13%. - Investors scrutinized the scale of its AI commitmen…