SpaceX at a $3 trillion market cap is the most expensive large-cap stock ever. That valuation makes it the world's fourth most valuable company. x.comÂ
Lin
Engineer & Venture Investor, The Fullstack Investor
SpaceX's earnings are nothing phenomenal against its $2 trillion valuation. Its P/E is 2,000 and P/S is 170, with $4.4 billion in profits after losing that much in Q1 2026; another $2 trillion company makes $50-60 billion in net profit. x.comÂ
SpaceX is not a buy yet because its valuation is sky-high at about 64.5 times annualized sales. Per the quoted post, investing in many companies with such multiples, like Snowflake, Palantir and DJT, has historically led to poor performance, so valuation metrics matter even for innovative companies. x.comÂ
SpaceX's projected growth is challenging the earlier overvaluation case, though the reassessment is still in progress. A VJN.ai chart projects revenue 273.3% higher by Q4 2027, even as the company is valued at $2 trillion. x.com x.comÂ
SpaceX's $2.2 trillion valuation is hard to justify next to Amazon's $2.7 trillion. SpaceX has $23 billion of revenue and is losing money, while Amazon has $775 billion and is printing cash with improving margins. Claims that SpaceX has a faster path to $1.5 trillion in revenue have no chance. x.com x.com x.comÂ
SpaceX's revenue ambitions look implausible against current sales and the risk of overbuilding chips. Revenue is $14 billion this quarter, and even the Street's $120 billion forecast for next year looks aggressive. Its costs are within its control, leaving the risk heavily skewed against investors. x.comÂ
SpaceX will be a $10 trillion company, so a roughly $2 trillion entry is not particularly expensive given where it will be in the 2030s. Per @ZaStocks, it just launched Google's TPUs into space, validating space data centers, and flew three missions in under 13 hours while landing four boosters, both firsts. x.com x.comÂ
SpaceX's roughly $2T valuation is hard to justify while it burns $10B in cash annually and the market expects it to put hundreds of billions of dollars of chips into space next year. x.comÂ
SpaceX's addressable market cannot expand without limit because global income bounds customer spending. Even after a roughly $2B revenue beat, its $2T valuation is 17x revenue even if the annualized figure is doubled. x.comÂ
SpaceX's Q3 growth and guidance make a small position worth considering despite its still-expensive valuation. Revenue reached $14.58B versus $12.54B expected, up 161% year over year, and Q1 2027 guidance is $33B-$37B. A small start around $144 is under consideration, with more aggressive buying reserved for below the $135 IPO price. x.comÂ
SpaceX's valuation looks stretched. Per @LeverageETFs, at an estimated $2.5 trillion market cap it is worth roughly as much as 94 listed aerospace and defense companies combined, including Boeing, RTX, GE, Lockheed Martin and Airbus. x.comÂ