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It's now official: Elon Musk's SpaceX (NASDAQ: SPCX) has surpassed overseas oil titan Saudi Aramco as the largest initial public offering (IPO) in stock market history! SpaceX raised $75 billion by selling roughly 555.6 million shares and ended its first trading day with a valuation of approximately $2.1 trillion. This makes it the seventh-most-valuable public company on U.S. exchanges.

It's understandable why investors are so excited. SpaceX combines two of Wall Street's hottest addressable opportunities under one company -- artificial intelligence (AI) and the space economy -- and is led by Musk, who turned electric-vehicle maker Tesla into a $1.5 trillion business.

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But in several respects, this IPO likely represents the greatest fleecing of retail investors we'll ever witness. SpaceX going public provides insiders with a way to cash out at the expense of retail investors. While some of this fleecing is Wall Street's doing, 12 words in SpaceX's prospectus all but confirm that bad news awaits retail investors.

Including financial statements and legal disclosures, SpaceX's prospectus (also known as an S-1 filing) exceeds 370 pages. It provides financial statements, balance sheets, risk factors, and forward-looking statements to help prospective investors make informed decisions.

But among this veritable novel are 12 scary words that should have prospective and existing SpaceX investors worried. On page 85, under the subsection "Our Capital Allocation and Funding Strategy," reads the following:

We acquired xAI in February 2026, which forms the basis of our AI segment. We expect to allocate substantial capital to expand our compute infrastructure, and we expect a multi-year investment horizon before these deployments translate into sustained positive AI Segment Adjusted EBITDA... We plan to access a range of debt and equity financing solutions available to us as a public company to fund future investments in growth and to maintain strong liquidity.

These 12 words, "We plan to access a range of debt and equity financing solutions," effectively confirm that, even after a $75 billion IPO capital raise, share-based dilution will be funding SpaceX's aggressive AI data center build-out. In other words, retail investors should expect substantial dilution in the coming years.

In addition to SpaceX confirming in writing its plan to issue debt and equity to fund its operating expansion, the company's unique share lockup period gives insiders a clear path to dump their shares on unsuspecting retail investors.

Typically, newly public companies set a 180-day lockup period for insiders (high-ranking executives, board members, and early investors) during which they can't sell their shares. However, SpaceX's unique unlock schedule allows insiders (not including Musk) to sell much sooner.

SpaceX's prospectus notes insider selling can commence as early as the second trading day after its first quarterly report as a public company (in August). There are several performance- and time-based unlock periods that, when coupled with SpaceX's low float and fast-track index inclusion to the Nasdaq-100, Russell 1000, and Russell 3000, should allow for the greatest wealth transfer from retail investors to company insiders that we've ever witnessed.

While certain structural dynamics can support SpaceX's share price in the weeks to come, the long-term outlook bodes poorly for everyday investors.

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Sean Williams has no position in any of the stocks mentioned. The Motley Fool has positions in and recommends Tesla. The Motley Fool has a disclosure policy.

The 12 Scariest Words in SpaceX's Prospectus All but Confirm an Imminent Fleecing of Retail Investors was originally published by The Motley Fool