SpaceX will make history on Tuesday by joining the Nasdaq-100 index, marking the first time a mega-IPO has been added under the exchange's recently adopted fast-track entry rules. The move reflects the index's effort to quickly incorporate large, newly public companies.

The stock's relatively small weighting in the Nasdaq-100 will likely limit passive buying pressure on its share price, according to CNBC. This could temper the typical index-inclusion boost that often lifts newly added stocks.

The next few years will be pivotal for SpaceX, as outlined by Motley Fool. The company's valuation and growth trajectory will face new scrutiny from a broader investor base now that it is part of a major benchmark.

Fast-track entry rules were designed to allow mega-cap IPOs rapid index inclusion, bypassing the traditional waiting period. For SpaceX, this accelerates its integration into passive investment strategies, though the immediate price impact appears muted.

Some analysts caution that index membership does not guarantee long-term outperformance. SpaceX's fundamentals and execution in a competitive space sector will ultimately determine its shareholder returns.