Index Providers Prepare For A Potential SpaceX Mega-IPO

Morningstar, Nasdaq, and others are weighing faster index-inclusion rules for giant new listings -- changes that could reshape benchmarks used by funds like Vanguard's Total Stock Market ETF.

Index providers are rewriting the rulebook for mega-IPOs, so huge new listings can enter major benchmarks much faster than before.

What does this mean?

Big indexes aren't just scoreboards anymore - they steer trillions of dollars in passive funds, so inclusion rules can create real buying pressure. Providers have typically waited for enough "free float" (shares available to trade) and liquidity, so index funds aren't forced to chase scarce stock. But today's private giants can list at sky-high valuations with a small initial float, which clashes with old eligibility tests. Morningstar says its CRSP indexes will use an "alternative liquidity screen" to judge t..