Reddit erupted over the SpaceX S-1 filing two days before the IPO, with a single post on r/investing attracting over 2,000 upvotes and 1,100 comments.
Investors highlighted Starlink's 63% EBITDA margins and 50% revenue growth, but flagged that the company posted a net loss of $4.9 billion in 2025 following its merger with xAI.
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The S-1 Deep Dive
The most upvoted post on r/investing offered a detailed breakdown of the S-1, highlighting both the promise and the peril. The post noted that SpaceX handles 82% of all US space launches and 45% of every commercial space contract globally. Starlink, the satellite internet business, reached 10 million subscribers across 164 countries by the end of Q1 2026—roughly double its base a year earlier—and generated $3.26 billion in connectivity revenue in Q1 alone.
But the numbers on the bottom line gave investors pause. SpaceX posted a $2.6 billion loss in 2025, and its operating loss ballooned to $1.9 billion in early 2026. Over the past four quarters, the company is estimated to have burned through roughly $30 billion in cash. At that burn rate, the entire $75 billion IPO raise would be gone in about 2.5 years.
Value Investors Push Back
On r/ValueInvesting, a user explained why they were sitting out the IPO. They conceded that Starlink is a formidable business—39% operating margins, 63% EBITDA margins, 50% revenue growth—but argued the valuation had run ahead of fundamentals. The valuation trajectory was stark: $350 billion in May 2025, $800 billion in December 2025, $1.25 trillion after the xAI merger, and $1.75 trillion at IPO. That is a 5x increase without a major improvement in the core business.
The impact of the xAI merger stood out. Before the deal, SpaceX earned $791 million in net income in 2024. After the merger, it posted a $4.9 billion net loss in 2025. The Q1 2026 net loss of $4.3 billion nearly matched the entire prior year's loss.
Exit Liquidity and Private Market Chatter
On r/wallstreetbets, traders discussed the private market dynamics. Those who bought SpaceX private shares (ticker SPAX.PVT) below $53 in 2025 were poised to find liquidity in the IPO. The post explained the process for accredited investors through platforms like Forge Global and Nasdaq Private Market.
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