SpaceX or OpenAI higher IPO Market Cap?

SpaceX is expected to command a larger market capitalization than OpenAI if both companies pursue long-awaited public listings before the end of 2027, setting up a landmark comparison between two of the most closely watched private companies in the technology sector. Investors are likely to focus on SpaceX’s dominant position in commercial launch services, its expanding Starlink satellite business and its role in aerospace infrastructure as key drivers of a premium valuation.

OpenAI, meanwhile, is also expected to attract intense demand if it goes public, reflecting its central role in the global artificial intelligence boom. But market watchers anticipate that SpaceX’s broader revenue base, established operating scale and long-term strategic assets could give it the edge in overall market value on the first day of trading. The eventual listings, if they occur within the same timeframe, are likely to become one of the most closely watched valuation contests in recent market history.