How do I protect myself from SpaceX and other mega-IPOs coming?

I have a significant portion of my net worth in a S&P500 fund. The changing of the rules such as seasoning, float requirements and specifically profitability have me somewhat concerned. Part of the reason for investing a good chunk of my net worth in these funds was because of some of these rules for inclusion. With that in mind, how are you going to protect yourself? submitted by /u/Foreign_Artichoke_23 [link] [comments]