SoftBank's shares jumped 4.6% to a record high on May 25, spurred by hopes of big returns from the company's stakes in OpenAI and SB Energy if they go public Bloomberg 2026-05-26 SB Energy, SoftBank Related Coverage SoftBank Insiders Question Son's $60B OpenAI Gamble WinBuzzer · Markus Kasanmascheff Nikkei Stock Average tops 65,000 for first time The Japan Times · Jiji SoftBank shares hit record high amid returns from OpenAI investment Business Post · Alice O'Leary SoftBank hits a fresh record as Tokyo bets the OpenAI IPO is finally coming The Next Web · Ana-Maria Stanciuc SoftBank shares soar to record high as market banks on OpenAI IPO CNBC-TV18 SoftBank (SFTBY) Soars to All-Time High on ARM Holdings and OpenAI Investments Blockonomi · Trader Edge