SoftBank Shares Slide as OpenAI IPO Delay Concerns Weigh on AI Investment Outlook

SoftBank Group Corp. shares dropped more than 5% on Monday, extending the sharp losses recorded last week as investors reacted to reports that OpenAI may postpone its highly anticipated initial public offering (IPO). The continued uncertainty surrounding the AI company's listing timeline has fueled concerns about the value and timing of returns from SoftBank's significant investment in the artificial intelligence leader.

SoftBank shares fell as much as 5.3% to ¥5,899 during Monday's trading session after plunging more than 12% on Friday. The latest decline pushed the Japanese technology investment giant's stock to its lowest level in more than a month, highlighting growing caution among investors toward AI-related companies.

According to reports citing people familiar with the matter, OpenAI is considering delaying its IPO until 2027 or later. Advisers reportedly believe current market conditions may not be favorable enough to support the company's desired valuation. The reports also indicated that OpenAI Chief Executive Officer Sam Altman is reluctant to move forward with a public listing at a lower valuation, preferring to wait until market conditions improve.

The possibility of a delayed IPO has created uncertainty for SoftBank, one of OpenAI's largest financial backers. Through multiple funding rounds and major commitments to artificial intelligence infrastructure, SoftBank has built a substantial stake in OpenAI. Investors had expected an eventual IPO to provide a significant liquidity event that would help unlock and validate the value of those investments. Any postponement could delay that opportunity by several years.

The recent selloff marks a notable reversal for SoftBank shares, which had enjoyed strong gains earlier this year as enthusiasm surrounding artificial intelligence fueled investor optimism. Founder and CEO Masayoshi Son has remained one of the strongest advocates of AI's long-term potential, repeatedly arguing that the industry is still in its early stages despite growing concerns about elevated valuations.

Last week, Son dismissed suggestions that the artificial intelligence sector had entered bubble territory. Instead, he maintained that AI technologies continue to offer substantial long-term growth opportunities and that current investments are laying the foundation for future innovation.

Despite that optimism, market sentiment has shifted in recent sessions as investors reassess the pace of returns from massive AI infrastructure spending. Concerns over delayed monetization, stretched valuations, and uncertainty surrounding major AI companies have prompted profit-taking across several AI-linked stocks.

The weakness in SoftBank shares also reflects broader caution across global technology markets. Investors are increasingly scrutinizing companies with significant exposure to artificial intelligence as they evaluate whether current valuations accurately reflect future earnings potential. With OpenAI's public listing potentially pushed back several years, market participants may continue to question the near-term outlook for AI-focused investments.

While SoftBank remains committed to expanding its presence in artificial intelligence through strategic investments, the company's share performance is likely to remain closely tied to developments surrounding OpenAI, broader AI market sentiment, and investor confidence in the long-term commercialization of artificial intelligence technologies.