SpaceX IPO Launches at $2.1 Trillion Valuation

SpaceX began trading on the Nasdaq this Friday, closing its first day at a $2.1 trillion valuation and officially minting Elon Musk as the world’s first trillionaire [3]. The offering, which sold 555.6 million shares at an initial price of $135, marks the largest IPO in history, surpassing the $1.7 trillion record previously held by Saudi Aramco [1].

The company’s public debut is a sprawling conglomerate that extends well beyond its core rocket business. By folding his satellite-internet service Starlink and his AI company xAI into the SpaceX umbrella, Musk has created a diversified entity that financial analysts suggest is valued at more than 90 times its 2025 revenue [1]. This structure has drawn scrutiny; while the IPO implies a massive valuation, research firm Morningstar previously estimated the fair value of the company’s combined rocket and AI divisions at roughly $780 billion [1].

The listing process itself signals a shift in market mechanics. To accommodate the debut, Nasdaq implemented a new rule allowing mega-offerings to list in just 15 days, a significant departure from the traditional one-year waiting period [1]. However, the S&P 500 has refused to follow suit. On June 4, S&P Dow Jones Indices rejected a request to waive its standard requirements for SpaceX, meaning the company will not gain immediate access to the billions of dollars held by passive investment funds that track the index [2].

This decision creates a clear barrier for other high-profile AI firms. By refusing to shorten its 12-month "seasoning period" or waive profitability requirements for "MegaCap" companies, the S&P 500 has effectively shuttered a fast-track route that OpenAI and Anthropic were expected to utilize following their own upcoming IPOs [2].

For now, SpaceX serves as a high-stakes litmus test for the broader AI industry’s financial health [3]. As the company navigates its new life on the public markets, the focus shifts to whether its aggressive expansion into orbital data centers and AI compute capacity can justify a valuation that remains billions of dollars above traditional analyst estimates [1]. Whether the market will continue to grant Musk’s ventures an "excessive premium" remains the central question for investors watching the next wave of AI giants prepare for their own public debuts [1].