SoftBank Seeks $5 Billion Margin Loan Backed by Arm Stock (1)

SoftBank Group Corp. is in talks to borrow $5 billion from global banks, refilling its coffers at a time Masayoshi Son is accelerating the Japanese investment firm’s bets on artificial intelligence.

SoftBank is close to signing a deal with a handful of lenders for a margin loan secured by shares of its chip unit Arm Holdings Plc., people familiar with the matter said. The capital will fund additional investment in OpenAI this year, the people said, who asked not to be identified discussing private matters.

A margin loan is a type of facility where you borrow money using your ...