TOKYO -- SoftBank Group has been sent back to the drawing board for a crucial part of its investment strategy -- cashing billions of dollars out of U.K.-based chip unit Arm with a sale to U.S.-based Nvidia.
Masayoshi Son's investment group looks for IPO exit as risks mount

The scrapped Arm sale is a setback for Masayoshi Son's plans to transform SoftBank Group into an investment company. (Photo by Shihoko Nakaoka)
TOKYO -- SoftBank Group has been sent back to the drawing board for a crucial part of its investment strategy -- cashing billions of dollars out of U.K.-based chip unit Arm with a sale to U.S.-based Nvidia.