I got the same question a few times over the weekend, so let me clear something up before the SpaceX IPO on June 12th, because there's a lot of confusion floating around.
People keep asking which fund or index will spike when SpaceX goes public. The assumption is that SpaceX joins the S&P 500 on day one, the SPY gets a forced bump, and you want to be positioned ahead of it.
That's not how it works.
A company doesn't just walk into the S&P 500. Under the current rules it has to trade for about 12 months first and pass profitability and size tests. There's a proposed rule change that would let mega caps over $200 billion qualify in six months instead of twelve, but it's still a proposal, and even if it passes, it's months out. Not day one. There is no automatic SPY bump on IPO day. Index funds only have to buy on the official inclusion date, which comes weeks to months later.
Where's the instant-bump idea coming from? The Nasdaq. The Nasdaq-100 has a fast-entry rule that can pull a big new l