SpaceX, Other Mega IPOs Denied Fast Index Entry by S&P

S&P Dow Jones Indices will keep its existing eligibility requirements for main benchmarks like the S&P 500 Index, rejecting proposals that would have made it faster for mega-cap companies such as Elon Musk’s SpaceX to gain rapid entry into the benchmark after going public.

The index provider in a press release Thursday said it will not shorten the 12-month seasoning period for newly public companies it currently has or waive existing profitability and public-float requirements based on a company’s size, diverging from a broader industry shift embraced by rivals Nasdaq Inc. and FTSE Russell.