SoftBank Group Shares Surge Almost 20% on OpenAI, SB Energy IPOsPosted by MarketsWireSoftBank Group Corp. shares surged almost 20% in morning Tokyo trading after a plan surfaced that OpenAI was preparing to file for an initial public offering.1 repliestomspark wrote:OpenAI going public is wild but that SoftBank pump feels fragile. Once the actual IPO happens and reality sets in, a lot of that speculative gain evaporates.