Palantir's AI Dominance Tested by Surging Rival and a Vocal Critic

Palantir stock plunges 7% after Michael Burry cites Anthropic as an existential threat, erasing over $23B in market cap. The firm faces intense AI competition despite strong revenue growth.

A single social media post from a prominent investor was all it took to wipe billions from Palantir Technologies' market value. The stock plunged more than 7% on Thursday, shedding over $23 billion in capitalization, after Michael Burry of Scion Asset Management aired his bearish thesis. The core of his argument, since deleted but not forgotten, is that the data analytics firm faces an existential threat from the blistering ascent of AI startup Anthropic.

Burry, who established a short position against Palantir in late 2025, labeled the stock's valuation a "bubble." He contends that Anthropic is rapidly capturing market share, particularly within government and military sectors that form the bedrock of Palantir's business. The figures he cited are staggering: Anthropic's Annual Recurring Revenue is said to have surged to between $20 and $30 billion. For context, it took Palantir two decades to reach a $5 billion annual revenue run rate. Burry further claimed that roughly 73% of new enterprise AI spending now flows to Anthropic, attracted by solutions perceived as simpler and more cost-effective than Palantir's platform-centric approach.

This competitive pressure is not merely theoretical. Anthropic recently launched a suite of "Managed Agents" and a new AI model called "Mythos," providing tangible evidence of its technical edge. The Mythos model reportedly delivered a 17-percentage-point improvement on the Terminal Bench 2.0 performance test. Early adopters of these autonomous agents include notable companies like Notion and Asana, signaling a direct challenge to established software vendors.

The sell-off pushed Palantir's share price to 111.20 EUR, extending its year-to-date decline beyond 22%. Since hitting an all-time high of $207.52 in October 2025, the stock has retreated approximately 37%. This weakness persists despite Palantir's own formidable operational performance. Fourth-quarter 2025 revenue jumped 70% year-over-year to $1.41 billion. Its U.S. commercial segment skyrocketed 137% to $507 million, marking a tenth consecutive quarter of accelerating growth, while U.S. government revenue grew 66% to $570 million.

Beyond competition, analysts note other headwinds. A recent geopolitical ceasefire has diminished the "war premium" previously baked into the stock, dampening expectations for future defense contracts. Simultaneously, regulatory scrutiny in the United Kingdom concerning data privacy issues adds another layer of uncertainty for investors.

The central tension for Palantir remains its sky-high valuation, which leaves little room for error. The stock consistently trades at a price-to-earnings multiple above 200x. Management's revenue guidance for full-year 2026 stands between $7.18 and $7.20 billion, implying 61% growth. Wall Street's outlook is divided: analyst John McPeake at Rosenblatt maintains a Buy rating with a $200 price target, while Benchmark is more cautious, rating the stock Hold due to execution risks. The overall analyst consensus price target sits around $198, with a range from $180 to $260.

All eyes are now on Palantir's first-quarter 2026 results, expected in May. The report will be a critical test of whether Anthropic's explosive growth is beginning to erode Palantir's new customer acquisition. With analysts projecting 75% profit growth for 2026, the bar is set extraordinarily high. In this environment of heightened skepticism, any misstep in the commercial sector is likely to be met with immediate punishment by the market.