SB Energy, backed by SoftBank, is experiencing significant delays in its initial public offering (IPO) amid growing skepticism on Wall Street regarding the data center boom. The company aims to raise up to $500 million through a share sale to Japanese investors as part of its planned US listing. However, investor concerns about valuations, particularly the $50 billion estimate for SB Energy, have led to postponements. The backdrop of AI data center IPOs facing investor scrutiny further complicates the situation, with some companies in the sector delaying their listings due to increased public opposition and market conditions.