Palantir: Tech darling or bubble waiting to burst?

Palantir’s explosive growth excites bulls, but extreme valuation and AI risks fuel bearish concerns.

Mark Rogers Mark Rogers

Palantir (PLTR) has been the hottest stock of 2025. For the second quarter of this year, it reported revenue of $1 billion, up 48% from the same period in 2024 and four times the figure in 2020.

Its US commercial business alone grew 121% year-on-year. Analysts point to a Rule of 40 score of 94, higher than any other enterprise software firm of comparable size. Among the world’s 25 biggest companies by market value, only Nvidia, with its near-monopoly on AI chips, scores higher.

On paper, it looks like a company firing on all cylinders. Margins are strong, deals are piling up, and Palantir’s work with both government and commercial clients gives it a rare kind of competitive moat. Investors see a firm riding the AI wave, harnessing data to optimise operations across sectors, from fast-food chains to intelligence agencies. For many, this is the kind of company you want a piece of.

But then there is the price. Palantir’s market value has soared to $430 billion, giving it a price-to-earnings ratio of over 600. Its price-to-sales multiple sits around 120. For context, Cisco, at the peak of the dotcom bubble in March 2000, traded on a multiple of around 200× annual profit. Google’s price-to-sales ratio peaked at 22 in 2005. Palantir isn’t merely expensive, its valuation is astronomical.

This is where the debate splits sharply.

The Bull Case

Supporters argue that Palantir is not just another tech firm. Its growth is real, recurring, and accelerating. The company has successfully integrated AI into its platform, and the commercial uptake is extraordinary. Record contract value, rising customer counts, and expanding US commercial revenue indicate strong market demand. The high Rule of 40 score suggests the firm is not only growing fast but doing so profitably.

Bulls point out that tech giants like Google, Meta, and Nvidia all sustained high growth for years. If Palantir continues to compound AI leverage successfully, the current valuation could be justified over time. From this perspective, what looks extreme today could be a bargain in five years. Growth and margins matter more than multiples in a world where AI adoption is still accelerating.

The Bear Case

On the other side, sceptics highlight the extreme valuation. Michael Burry, famous for shorting the subprime mortgage market, has placed put option bets against Palantir, signalling he expects a sharp drop. The math is simple: for the stock to justify its current price, Palantir would need to sustain annual growth above 40% for several years, without any missteps, scandals, or competitive pressure. That is an extraordinary assumption.

Burry’s broader critique of the AI space adds context. He points to hyperscaler firms, Meta, Oracle, Nvidia, extending depreciation cycles for AI hardware, effectively inflating earnings by undercharging for rapidly obsolete equipment. If these earnings are overstated, valuations across the sector may be unsupported. He estimates that earnings could be inflated by around $176 billion through 2028. If reality catches up, the downside could be steep.

Historical parallels reinforce the caution. Cisco’s market value reached $1 trillion in today’s terms during the dotcom bubble. Its growth was solid, but it could not match the sky-high expectations, and its stock fell dramatically. The lesson is that a strong business can still deliver poor returns if bought at extreme prices.

Is There a Bubble?

Whether Palantir is a bubble depends on how confident you are in its ability to sustain exceptional growth while navigating competition, government reliance, and the broader AI hype cycle. The facts are indisputable: growth is real, margins are strong, and the technology is in high demand. Yet the valuation is pricing in near-perfect execution over multiple years.

For every investor who sees Palantir as the next AI giant, there is another who sees a modern-day Cisco, where the story is brilliant but the price is punishingly high. Burry’s trades are a reminder that even strong fundamentals cannot protect investors from a market that has moved far ahead of itself.

The Bottom Line

Palantir sits at the intersection of extraordinary growth and extreme valuation. Bulls celebrate a company delivering on its promises at a scale few can match. Bears warn that the market has already paid for perfection, leaving little room for error. Whether the stock continues to climb or eventually corrects, one thing is clear: this is a story that will test patience, timing, and conviction in equal measure.