Short-sellers to tread carefully as Musk's SpaceX debuts

SpaceX's expected IPO is set to value the company at $1.75 trillion, with an estimated price-to-revenue multiple of 56 and a public float below 5% of outstanding shares. The article argues that despite valuation and governance concerns, a heavily bullish market, strong retail interest, and limited share borrow availability may keep short sellers on the sidelines initially. Tesla’s history of punishing shorts — including $27 billion in losses since June 2021 — is cited as a cautionary backdrop.

Analysis

The immediate edge here is not in fighting the IPO, but in the mechanics around it. A float this constrained means price discovery will be dominated by natural buyers, index inclusion demand, and scarcity-driven borrow costs before fundamentals can assert themselves; that creates a poor setup for outright shorting in the first several weeks. The better expression of a bearish view is to wait for supply expansion, when lend becomes more available and the market can finally price in dilution, governance risk, and execution uncertainty without being squeezed by flow.

Second-order winners are the broker-dealers and market infrastructure names that intermediate the inevitable retail and passive demand spike. Goldman should see incremental trading and underwriting economics, while Morningstar-like research shops can benefit from the surge in private-market curiosity and valuation debate, even if their fundamental stance is skeptical. Tesla is the more interesting medium-term hedge: a successful SpaceX public comp can reinforce the “Musk scarcity premium” across the ecosystem, but it also sets a higher bar for TSLA skeptics because the market will reprice Musk-linked optionality rather than just vehicle fundamentals.

The consensus may be underestimating how long the squeeze window can last. With less than 5% float and phased unlocks, the stock can remain technically unsupported on the upside for months if passive index buying and retail momentum persist. The real contrarian risk for bulls is not near-term pop risk; it is that once borrow normalizes, the name becomes a crowded disappointment trade if growth expectations are extrapolated too far into uncertain technologies.

For TSLA, the article reinforces that the market still assigns value to Musk’s platform-building narrative, but that can cut both ways. If SpaceX trades as a premium “Musk call option,” TSLA shorts should avoid making the same valuation argument and instead focus on cash flow inflection, margin durability, and any evidence that investor attention is being diverted toward the private/public SpaceX story.

Key Decisions for Investors

• Avoid initiating a fresh outright short in the first 2-4 weeks post-IPO; borrow scarcity and passive demand make the risk/reward unattractive unless the stock gaps >50% above deal terms on day one.
• Set a calendar trigger to evaluate a bearish position only after the first unlock window; at that point consider a small short or put spread if lend is available and implied borrow remains elevated.
• For a cleaner expression of skepticism, buy medium-dated put spreads 3-6 months out rather than stock short; downside is capped, and the trade benefits from post-hype normalization once supply expands.
• Maintain TSLA as a relative hedge against a successful SpaceX debut only if the market starts pricing Musk premium across the complex; otherwise, do not overtrade the headline because the cross-asset signal is weak in the first month.
• Long GS on a 1-3 month horizon as an event-driven beneficiary of IPO trading and underwriting activity, but size modestly given the low direct economic exposure and the possibility of a fast post-IPO cooldown.