The Fastest-Growing AI Stock Trades at 9 Times Earnings. What’s the Catch?
Super Micro’s revenue nearly quadrupled in a year, and its outlook points to $80 billion. Yet the market values the stock like a bank, not an AI leader. The reason lies in how much of every dollar the company keeps and who actually pays for its manufacturing.
Key points
Revenue jumped 298% year over year to $19.9 billion, yet the stock is down 33.8% over the past year.
The company trades at 9.2 times earnings, while the hardware industry averages 18.6 times.
Gross margin fell to 12.7%, and management openly signaled that it will fall even further in the second half of the year.
A single customer accounted for 44% of quarterly revenue, and two clients hold most of the company’s accounts receivable.
With net income of $3.7 billion, free cash flow over the past 12 months is minus $6.5 billion.
Revenue quadrupled in a year, but the stock is still in the red
Super Micro Computer $SMCI delivered a quarter on Tuesday evening unlike anything the AI sector has seen. Revenue for the three months ended September 30, 2026, reached $19.9 billion, up 298% year over year—from $5 billion a year earlier. Management also raised its outlook for the full 2027 fiscal year to $72 billion to $82 billion, from an initial $65 billion to $72 billion. The stock rose 7.2% after hours to around $33.65.
The longer-term chart tells a different story. The stock has lost 28.2% over the past month and 33.8% over the past year, while the S&P 500 gained 11.8% over the same period. From its March 2024 peak, it fell nearly 85% at its worst point.
And the valuation? Super Micro trades at 9.2 times its earnings over the past 12 months, or just 5.3 times based on next year’s estimates. The computer hardware industry averages 18.6 times, while Super Micro’s own five-year average is 22.9. Banks and automakers—companies no one expects to grow—trade at similar multiples. So a company whose revenue is growing faster than any other in the entire AI boom is getting an old-economy price tag from the market. There isn’t just one catch; there are three.