Markets

SoftBank shares slip over 12% on OpenAI IPO delay concerns

Tech stocks bring down Nikkei average by 4%; South Korea's KOSPI falls 6%

SoftBank Group Chairman and CEO Masayoshi Son. The Japanese tech conglomerate has made aggressive bets on the ChatGPT creator. (Photo by Kazuho Fujiwara)

JADA NAGUMO

TOKYO -- Shares in SoftBank Group fell over 12% on Friday as disappointed investors engaged in profit-taking after a report that OpenAI is considering postponing its market debut.