SpaceX priced its IPO at $135 per share, raising over $75 billion（約12兆円） and becoming the largest initial public offering on record, with the company valued at just under $1.8 trillion（約290兆円）.

What happened: SpaceX filed to offer more than 555 million shares at $135 each, raising over $75 billion（約12兆円） and easily surpassing Saudi Aramco's $29.4 billion（約4.7兆円） debut in 2019 as the previous record-holder. The conglomerate—which now includes satellite operations, the AI company xAI, and the social media platform X—was set to begin trading on the Nasdaq under the ticker symbol SPCX. Options for nearly 83 million additional shares could push the total above $86 billion（約14兆円）.

Why it matters: SpaceX's valuation of just under $1.8 trillion（約290兆円） places it in the top 10 of Wall Street's biggest companies, ahead of Tesla, Meta, and Walmart. The offering was more than four times oversubscribed, with high demand among retail investors for which 20 percent of shares were reserved, signaling continued investor confidence in Elon Musk despite his polarizing public profile. The IPO marks the first of leading AI giants to go public, with OpenAI and Anthropic also recently filing initial documents with regulators.

What to watch: The company's valuation largely depends on Musk delivering on promises including putting data centers in space and humans on Mars using as yet unproven technology. The offering is expected to mint thousands of new millionaires and several billionaires among former and current employees and investors.