Operator of S&P 500 decides against fast-tracking 'MegaCap' IPOs into its stock indexes
Key takeaways
- Operator of S&P 500 decides against fast-tracking 'Mega Cap' IPOs into its stock indexes Niall Pawa, foreground center, works with fellow traders on the floor of the New York Stock Exchange, Monday, June 1, 2026.
- Some of the criteria for inclusion include headquarters in the United States, listing on NYSE or Nasdaq and profitability over the past year.
- S&P also requires companies that complete IPOs to be traded on an “eligible exchange” for at least 12 months before they can be considered for inclusion into an index.
Operator of S&P 500 decides against fast-tracking 'Mega Cap' IPOs into its stock indexes Niall Pawa, foreground center, works with fellow traders on the floor of the New York Stock Exchange, Monday, June 1, 2026. (AP Photo/Richard Drew) · Associated Press ALEX VEIGA Sat, June 6, 2026 at 12:35 AM GMT+7 2 min read ^GSPC ^SP400 ^SP600 The operator of the S&P 500 says it has decided not to change its guidelines for when very large “Mega Cap” companies are eligible for inclusion into its bevy of stock indexes.
In its announcement Thursday, S&P Dow Jones Indices said its index committee weighed responses received from a “wide range of market participants,” but ultimately decided not to make any changes to its criteria for determining when a company should be added to the S&P 500, S&P MidCap 400, or S&P SmallCap 600 indexes.
Some of the criteria for inclusion include headquarters in the United States, listing on NYSE or Nasdaq and profitability over the past year.