SpaceX is poised to join the Nasdaq-100, the index of the largest non-financial companies listed on the Nasdaq exchange.

According to CNBC Investing, adding Elon Musk's space company this quickly would make it one of the first beneficiaries of Nasdaq's recently adopted fast-track inclusion framework. In other words, rather than waiting through the usual timeline for index membership, SpaceX would be brought in under a streamlined process the exchange introduced not long ago.

Membership in the Nasdaq-100 is closely watched because the index underpins some of the most widely held investment products in the world. When a company joins, funds that track the index typically have to buy its shares, which can broaden ownership and raise a company's visibility among everyday investors.

The key wrinkle here is the speed. CNBC frames SpaceX's addition as an early test of Nasdaq's new fast-track approach, suggesting the exchange is willing to move more nimbly to capture prominent companies for its flagship index.

Beyond those points, the available reporting is limited. The source does not specify a confirmed effective date, the size of SpaceX's expected weighting, or which companies, if any, would be displaced.

Why it matters: Folding a high-profile name like SpaceX into a benchmark index this fast signals how Nasdaq is reshaping the rules for index membership, a shift that could influence which companies investors end up owning through their funds.