The Largest IPO in History Arrives on the Day the War Premium Starts to Unwind

The largest IPO in American history begins trading this morning on a day when the single biggest risk premium in global markets may be unwinding. Trump called off strikes on Iran and said a deal could be signed this weekend. WTI fell to $85.94, its lowest since April. The macro that existed 48 hours ago no longer exists.

At 4:15 p.m. Thursday, the prospectus hit EDGAR. SpaceX had priced 555.6 million Class A shares at $135, raising approximately $75 billion and valuing the company at $1.77 trillion. Morgan Stanley, Goldman Sachs, JPMorgan, Bank of America, and Citigroup led a consortium of 21 underwriters. The filing confirmed what had been rumored for weeks: up to 30% of the allocation had gone to retail investors, an unprecedented share for an offering of this size. Fidelity had opened access to accounts with as little as $2,000.

Three hours earlier, the market had staged its strongest single-session rally in a week. The Dow rose 930 points. The Nasdaq climbed 2.54%. The Russell 2000 gained 3.02%. The catalyst was not SpaceX. It was Trump posting that he had called off planned strikes on Iran for the evening and that “discussions have been brought to the highest level of Iranian leadership.” A signing, he said, could come “as early as this weekend, likely in Europe.” Iran’s semi-official Fars news agency reported that Tehran was likely to approve.

Oil told the story before equities did. WTI crude fell to $85.94, its lowest since April. Brent dropped over 4% toward $89, a level not seen since March. The Strait of Hormuz, closed since February 28, has been the single largest variable in global inflation for three months. Energy prices rose 23.5% year-over-year in the May CPI report. They accounted for more than 60% of the monthly headline increase. If the strait reopens, that entire inflation impulse reverses. Brent at $89 instead of $95 translates directly to lower gasoline, lower shipping costs, and a materially different CPI trajectory for June, July, and August.

That is the macro into which SpaceX now prices. Forty-eight hours ago, the backdrop was a 4.2% CPI, CENTCOM strikes on Iran, a 10-year yield at 4.57%, and a market that had fallen 4.5% from its record. Today, the 10-year remains elevated, but the single largest driver of headline inflation is unwinding in real time. If the Iran deal holds, Goldman’s call that rate cuts have been pushed to 2027 may be revised. The June CPI print, due July 14, could come in substantially below May’s 4.2% if oil continues to fall. That changes the FOMC calculus for the rest of the year.

What SpaceX actually is, financially. The S-1 prospectus shows a company with two businesses operating on different timelines. Starlink, the satellite connectivity segment, grew revenue roughly 50% to $11.4 billion in 2025 and produced an operating profit of about $4.4 billion. The xAI segment, built around the Grok large language model and acquired through the February 2026 merger, lost approximately $6.4 billion at the operating level last year. The company poured $12.7 billion into AI data centers and computing infrastructure. Net loss for 2025: $4.9 billion. Net loss in the first quarter of 2026 alone: $4.3 billion.

At a $1.77 trillion valuation, SpaceX trades at roughly 88 times Starlink’s 2025 revenue and carries the xAI losses as embedded optionality. The argument for owning it at this price requires one of two conditions: either Starlink’s growth justifies the entire valuation on its own, or xAI reaches scale fast enough to offset its burn. Neither is impossible. Neither is priced cheaply.

The index math matters. On June 4, S&P Dow Jones Indices rejected its own proposal to fast-track megacap IPOs into the S&P 500. That means SPCX cannot enter SPY, VOO, or IVV until at least mid-2027, and only if it posts four consecutive quarters of positive GAAP earnings. The passive buying wave that would accompany inclusion, estimated at $50 billion or more across all S&P-linked assets, is a future catalyst, not an imminent one.

Nasdaq, however, revised its methodology effective May 1. Any newly listed company ranked in the top 40 by market cap can enter the Nasdaq-100 after just 15 trading days. At $1.77 trillion, SpaceX qualifies easily. That means QQQ holders will see a forced rebalance within weeks, with every other Nasdaq-100 constituent selling down to make room. SpaceX’s low float, roughly 555 million shares out of roughly 13.1 billion outstanding, will concentrate the buying pressure.

What today means for the week ahead. Kevin Warsh chairs his first FOMC meeting on Monday. The dot plot and economic projections land Tuesday. If oil continues to fall on an Iran deal, the committee faces a different inflation picture than the one it saw when May CPI crossed 4%. The question Warsh has to answer is whether the inflation the Fed is seeing is structural or geopolitical. Wednesday’s CPI data already hinted at the answer: headline was hot, core came in below consensus, and the gap between them was entirely energy. A peace deal would confirm that thesis. A collapse in negotiations would bury it.