Short-seller Andrew Left says OpenAI's $500 billion valuation proves Palantir stock is way too expensive

Citron Research, led by Andrew Left, has reiterated its bearish stance on Palantir (PLTR), asserting the stock remains significantly overvalued even after recent declines. The firm now uses OpenAI's $500 billion valuation as a benchmark, arguing that Palantir's projected 2026 revenue of $5.6 billion would still imply an expensive 17x price-to-revenue multiple, leading to an implied share price of $40—a 77% drop from current levels—yet still making it one of the most expensive SaaS stocks. Citron contends Palantir does not warrant such a valuation compared to OpenAI's "unprecedented scale," contributing to PLTR's recent share price weakness despite strong Q2 earnings.

Analysis

A detailed short-seller report from Citron Research has intensified its bearish stance on Palantir (PLTR), arguing the company is fundamentally overvalued. The firm uses OpenAI's recent $500 billion valuation to establish a benchmark, deriving a price-to-revenue multiple of approximately 17x based on OpenAI's $29.6 billion in revenue. Applying this same multiple to Palantir's projected 2026 revenue of $5.6 billion results in an implied stock price of about $40 per share, which represents a 77% decline from its recent high. Critically, Citron contends that even at this substantially reduced valuation, Palantir would still be one of the most expensive SaaS stocks in history. The core of the argument questions whether Palantir deserves a valuation multiple comparable to OpenAI, which Citron describes as having growth at an "unprecedented scale." This negative sentiment has contributed to recent market pressure on PLTR, with shares falling approximately 6% to $163.92, despite the company's strong second-quarter earnings and a 118% year-to-date gain.

Key Decisions for Investors

• Investors should critically reassess Palantir's valuation, as the detailed short thesis from Citron Research provides a stark, quantitative argument against its current multiples, even when benchmarked against a premier AI company like OpenAI.
• Given the stock's significant 118% year-to-date appreciation, holders of long positions may consider trimming exposure or implementing hedging strategies to protect gains against the heightened volatility and downside risk highlighted by this prominent short-seller campaign.
• Monitor key forward-looking indicators, such as customer growth and the pace of AI platform adoption, as any deceleration could validate Citron's concerns and amplify selling pressure, while significant outperformance would be required to justify the current premium valuation.