The Japanese conglomerate, whose tech portfolio has slumped in value due to an array of troubled investments, passed the psychological level of 6,000 yen on Friday

Taiwan smartphone chip maker MediaTek said it will be using Arm's new technology for its next-generation smartphones

S&P said a listing for chip designer Arm, which has become a primary preoccupation for the group's chief Masayoshi Son, would improve asset liquidity

SoftBank has reportedly picked Goldman Sachs, JPMorgan Chase, Barclays and Mizuho Financial Group to lead the US listing.

The China business is the exclusive distributor of Arm chip technology in China and develops and sells its own chip designs based on Arm