SpaceX will join the Nasdaq-100 on Tuesday under new fast-track entry rules, making it the first mega-IPO to earn a spot in the index. The milestone comes as shares slipped ahead of the inclusion, with Investor's Business Daily reporting the stock dropped in Monday's session.

Though the inclusion is historic, CNBC noted the relatively small index weighting will likely constrain passive buying pressure on the stock. The dual dynamic sets up a volatile first day of trading for the newly indexed company.

The move follows a broader rebound in AI-related equities, with Astera, Bloom Energy, and Tesla all trading higher. Meanwhile, bank stocks rallied ahead of Q2 earnings as one Wall Street firm grew more bullish on Big Bank stocks in a preview note.

Some analysts argue the index inclusion boosts long-term credibility and liquidity, potentially outweighing short-term headwinds. "The next few years will be pivotal for SpaceX," a Motley Fool analyst wrote, though the brief lacks specifics on forward guidance.