Known for his value investing roots, Buffett still pays close attention to how much a company is worth relative to its earnings. Palantir's valuation would likely raise serious concerns. Currently trading at around 104 times trailing 12-month sales and 238 times forward earnings, Palantir's stock is priced for perfection. While the company is posting impressive revenue growth, 39% year over year in Q1 2025. its guidance already suggests a deceleration to around 36% for the full year. Wall Street analysts predict even slower growth in 2026. To Buffett, these figures likely scream overvaluation. Without a clear path to sustained, outsized earnings growth, such lofty multiples could be tough to justify.