(Bloomberg) — Mega-IPO candidates including SpaceX are expected to face a long road to entry to the S&P 500 Index, after the company that makes the rules rejected a proposal that included relaxing the requirement that they be profitable.Most Read from BloombergBecerra Advances for California Governor as Hilton Fights SteyerSpaceX, Other Mega IPOs Denied Fast Index Entry by S&PNasdaq 100 Sinks 5% in AI-Led Rout as Yields Climb: Markets WrapWhat to Expect From Apple’s AI, Siri and iOS 27 Launch a