US Stock Market: SpaceX, OpenAI IPO excitement revives debate over lofty valuations
Reuters’ review of the 50 largest IPOs by valuation over the past five years found about three in four underperformed the S&P 500 after listing. It notes an average 27% return for investors buying at offer prices through May 21 versus 53% for the S&P 500. The analysis highlights SpaceX’s expected IPO next month, targeting nearly $1.75 trillion, with a price-to-sales near 100, and warns high valuations may not translate into sustained gains.