Palantir stock has tumbled 25% from its record high, but investors should think twice before buying the dip.Palantir Technologies (PLTR 0.62%) is a cornerstone of the artificial intelligence (AI) trade, particularly among retail investors. The company has consistently crushed Wall Street's expectations, and shares have advanced 1,800% since Palantir launched its AI platform in April 2023.Yet, the stock recently hit turbulence despite the company's strong market presence and solid third-quarter financial res ...