SpaceX Lists at $135, Trades to $176 — and Still Can't Join the S&P 500

SpaceX began trading on the Nasdaq Friday under the ticker SPCX after pricing its IPO at $135 a share Thursday night, raising roughly $75 billion across 555.5 million Class A shares plus a 83.3 million-share greenshoe. By the opening cross the stock printed $150, and inside the first hour it touched an intraday high of $176.52, briefly putting the company above a $2 trillion market capitalization.

That makes it the largest IPO ever by dollars raised, eclipsing Saudi Aramco's 2019 listing, and the first U.S. mega-cap to debut at trillion-dollar scale on day one. It also pushes Elon Musk past the trillion-dollar personal net-worth mark on paper, a milestone no individual has previously crossed.

Gwynne Shotwell rang the opening bell at the Nasdaq MarketSite in Times Square; Musk attended remotely from Starbase. Underwriters cut the retail allocation to the low-20% range late in the book-build, a sign of how heavily institutional demand swamped supply.

On June 5, a week before the listing, S&P Dow Jones Indices reaffirmed its existing eligibility rules and explicitly declined to carve out an exception. The decision rules out a fast-track inclusion that some Musk-aligned investors had been lobbying for, and it means the largest U.S.-listed equity by market cap will sit outside the country's most important benchmark indefinitely.

The blocker is the profitability screen. To enter the S&P 500 a company must post positive GAAP earnings in its most recent quarter and across the sum of the prior four quarters. SpaceX's S-1 shows the launch and Starlink businesses generating substantial revenue but still running negative GAAP net income, weighed down by Starship development, depreciation on the satellite fleet, and stock-based compensation.

There is also a float requirement: at least 50% of shares outstanding must be in public hands. Even after the world's largest offering, insiders — Musk, the founder trust, and pre-IPO holders — retain well over half of the equity. Both gates have to clear before the index committee will even consider the name.

Index inclusion matters because of mechanical money. Roughly $11 trillion in assets are benchmarked to or directly track the S&P 500. At a 0.6% to 0.7% weighting — what a $2 trillion company would command today — passive funds would need to buy in the neighborhood of $65 to $75 billion of SPCX in a single rebalance.

That demand would arrive on a known date, against a thin float, with index-tracking buyers price-insensitive. It is the closest thing to a guaranteed bid in modern markets, and it is the reason newly-public mega-caps usually trade at a premium to fundamentals in the months leading up to expected inclusion. SpaceX shareholders just lost access to that bid, possibly for years.

The Nasdaq-100 is a separate question. It is rules-based on the Nasdaq exchange and does not require GAAP profitability, but it does cap any single name's weight, runs only an annual reconstitution in December, and has its own seasoning period. December 2026 is the earliest realistic entry, and even then the float test is the bigger obstacle.

Tesla took roughly a decade to enter the S&P 500 after its 2010 IPO, finally qualifying in late 2020 once the profitability streak was clean. The pre-inclusion run added more than $100 billion of market cap in three months as funds front-ran the committee decision.

Meta, Google, and Berkshire each spent years inside the Russell and Nasdaq-100 before clearing the S&P's quality screens. The pattern is consistent: index committees would rather be late than wrong, and they punish optical-only fixes like non-GAAP adjusted earnings.

Closer to the SpaceX template, Saudi Aramco never joined a U.S. benchmark because its float and listing venue disqualified it. The lesson for OpenAI, Anthropic, Stripe, and Databricks — all rumored 2026 to 2027 candidates — is that going public is the easy part. Index-grade governance, float, and earnings discipline take longer.

Three milestones determine the timeline. First, the next two quarterly 10-Qs: investors want to see Starlink free cash flow turn convincingly positive and Starship capex moderate enough to push consolidated GAAP earnings above zero. Second, the lockup expiry, typically 180 days post-IPO; meaningful secondary sales would help the float ratio more than they hurt sentiment. Third, an explicit signal from S&P's index committee, which meets quarterly and telegraphs decisions before announcement.

In the meantime, expect a volatile tape. The opening pop has a lot of unanchored buyers — retail FOMO, momentum funds, and call-option dealers hedging gamma — with no fundamental price discovery yet. Implied volatility in the first listed options should print north of 70%.

For long-term holders the thesis is unchanged: Starlink is a high-margin recurring-revenue infrastructure business; the launch monopoly remains intact; and Starship optionality is real. None of that requires index inclusion. But the next leg of multiple expansion does.