The S&P 500 is also considering accelerated entry for SpaceX into its index.

NASDAQ has eliminated its historical rule that required a company to have a minimum float of 10% to be eligible for index inclusion.

Despite its low 5% float, SpaceX is set to receive accelerated entry into the NASDAQ 100 index.

NASDAQ has changed its rules to allow very large companies to be included in the NASDAQ 100 index just 15 days after their IPO, down from the previous waiting period of six months.

Under its new rules, NASDAQ will treat a company with a 5% float, like SpaceX, as if it has a 15% float for weighting purposes in the NASDAQ 100 index.

The NASDAQ 100 index is not free-float adjusted, unlike most other major market indexes.

Index funds tracking the NASDAQ 100 will be forced to buy approximately $7 billion worth of SpaceX stock on the day of its inclusion.

If SpaceX's float increases from 5% to 15% at the six-month mark, NASDAQ is expected to increase its effective weighting in the NASDAQ 100 from 15% to 45% due to the 3x multiplier rule.

SpaceX plans to float only 5% of its stock in its initial public offering.

It is predicted that a significant lock-up expiration for SpaceX stock will occur approximately six months after its IPO, potentially increasing the float from 5% to 15%.

SpaceX holds a near-monopoly on space launch services in the United States.

SpaceX is structured as a multi-business conglomerate, which is an unusual structure for a company at the IPO stage.

SpaceX's conglomerate structure includes the social media platform X (formerly Twitter), the AI company xAI with its product Grok, and the Starlink internet service.

SpaceX's Starlink business has 9 million subscribers for its commercial internet service.

A study on Vanguard's CRSP indexes, which have an accelerated five-day inclusion rule for IPOs, concluded that this practice is detrimental to investor returns.

Institutional investors typically use MSCI indexes, which have static and carefully adjudicated rule books that are not expected to change.

Academic research suggests that including IPOs in an index shortly after they go public is detrimental to the returns of existing index investors.

During the dot-com era, the average post-IPO valuation of a company was approximately $120 million.

The modern IPO market primarily serves to provide liquidity for private equity investors and insiders, rather than rewarding public market investors as it did historically.

In the dot-com era, the average percentage of a company's stock sold in an IPO was between 30% and 40%.