SpaceX Stock’s $4.3 Billion Index Tailwind Fails to Lift Shares as Analysts Clash Over a $62-to-$800 Valuation Range

The Nasdaq-100 has a history of rewarding new additions with a wave of forced buying, but SpaceX’s debut last week did little to buoy the stock. The rocket company, which secured one of the fastest index inclusions on record thanks to a new Nasdaq rule that allows entry after just 15 trading days, saw an estimated $4.3 billion in passive ETF inflows flood in. Yet the stock fell $10.17, or 6.34%, to close lower, touching an intraday low of $149.64 – a 6.7% drop from the previous close.

Cboe Vice President JJ Kinahan has already cautioned investors to expect wild swings of up to $20 in either direction over the coming sessions, and the price action suggests the market is digesting far more than index rebalancing mechanics.

A deeply fractured analyst community only adds to the uncertainty. Nineteen analysts initiated coverage after the quiet period expired, and nearly all landed on buy recommendations. The median price target sits at $250, implying 56% upside from the stock’s Monday close. But the range is staggering: MoffettNathanson’s Julie Zhu slapped a neutral rating and a low-end target of $131, calling SpaceX’s self-stated $30 trillion addressable market “absurd” and questioning Elon Musk’s plan to deploy 100 gigawatts of orbital computing power by 2029. At the other extreme, one analyst set a target as high as $800.

Even before the IPO, the valuation debate was running hot. Morningstar, which rated the stock well ahead of the listing, stands conspicuously alone in its bearish conviction. The research house pegs SpaceX’s fair value at just $62.51 – a discount of more than 50% to the IPO price of $135. Its probability-based model assigns only a 7% chance to the “moonshot” scenario that would require a rapidly reusable Starship and orbital data centers, a scenario that alone would justify a $154 share price. The most likely outcome, according to Morningstar, is a “minimal product” scenario with 50% probability, while the pessimistic “no-go” scenario gets a hefty 43% weighting. To rationalize the $135 offering price, the model would need the moonshot scenario to have a 77% probability – a hurdle the analysts consider unrealistic.

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The bull case, by contrast, is sky-high. Major banks came out swinging after the lock-up period ended in July. Morgan Stanley rates the stock Overweight with a $300 target, though its scenario range spans from $75 on the downside to $600 on the upside – the latter implying a colossal market capitalization. Deutsche Bank issued a buy with a $255 target, RBC set Outperform at $225, and Goldman Sachs put a Buy with a $205 target. The median target across the broader analyst pool of $250 suggests the Street expects significant upside, but the wide dispersion indicates that the fundamental picture is far from settled.

That fundamental picture is sobering. The company posted a net loss of $4.9 billion on revenue of $18.7 billion in its last fiscal year, and the price-to-sales ratio stands at a dizzying 112 times. Morningstar’s analysis argues that the valuation leaves no room for error. Even the bull case relies on revenue materializing only in the coming decades, and the company continues to burn cash heavily on capital expenditures.

Meanwhile, a fresh layer of speculation has entered the fray. JPMorgan analyst Rajat Gupta rekindled talk of a potential merger between SpaceX and Tesla, calling the idea “on paper sensible” as a way for Elon Musk to consolidate leadership across his two flagship companies. A tie-up would create a vertically integrated giant spanning AI, robotics, energy, transportation and space. Gupta, however, flagged major obstacles. Musk controls roughly 85% of SpaceX voting rights but only about 20% of Tesla’s, raising concerns among Tesla minority shareholders about dilution. The sheer size disparity also means the deal could look more like an acquisition of Tesla by SpaceX than a merger of equals. And regulatory approvals – particularly in China, where Tesla has substantial production and distribution operations – pose a “practical hurdle.”

RBC Capital took a more optimistic view, raising its Tesla target from $475 to $500 and maintaining an Outperform rating, explicitly incorporating a 25-30% premium to reflect a possible SpaceX acquisition scenario. SpaceX President Gwynne Shotwell has not ruled out such a combination, noting that it “could make Elon’s life a little easier.” The operational ties are already tight: engineers, AI infrastructure and the Terafab chip factory in Texas are shared; SpaceX buys Tesla Megapacks and Cybertrucks; and Tesla invested $2 billion in xAI, now part of SpaceX.

Tesla shares themselves slipped about 4% on Tuesday after JPMorgan’s warning on regulatory risks, though Gupta kept a Hold rating with a $475 target.

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The index inclusion itself carries a twist. Because SpaceX’s free float is only 4-5%, the stock’s weighting in the Nasdaq-100 is capped at roughly 1.3%, placing it 21st in the index behind Nvidia, Walmart, Intel and Tesla. That narrow float helps explain why the $4.3 billion in passive buying did not prevent a drop – the shares available to trade are limited, amplifying moves in both directions.

For investors trying to navigate the post-IPO landscape, the conflicting signals are dizzying. On one side stand the evangelists with $800 targets and visions of orbital computing; on the other, skeptics who see a business that cannot justify its current valuation without technological miracles. Add in the merger speculation, a thin float and a raft of index-driven flows, and it is little wonder that Kinahan is warning of 20-point swings. The August earnings report will be the first real test of whether SpaceX’s management can convince the market that the path from capital-intensive rocket builder to profitable tech titan is more than a moonshot.

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