Citron Research, the firm led by short-seller Andrew Left, unpacked its bear case for Palantir, using OpenAI to show why it may be highly overvalued.

Andrew Left argues that investors have overhyped Palantir stock, and its valuation pales in comparison to a true AI leader like OpenAI.

Palantir Technologies Inc (NASDAQ:PLTR) shares are trading lower Wednesday as the stock continues to pull back following a strong run in recent weeks. Here's what you need to know.

Nvidia, Palantir and other superstar stocks that had surged in the mania surrounding artificial-intelligence technology are dragging Wall Street lower again on Wednesday.The S&P 500 fell 0.5% and was heading for a fourth straight loss after setting an all-time high last week.

Wall Street is edging lower on Tuesday following drops for Palantir and other stars that had been riding the mania surrounding artificial-intelligence technology. The S&P 500 slipped 0.4% and is on track for a third straight modest loss after setting its all-time high last week.

U.S. stock indexes ended mixed after Nvidia, Palantir and other superstar stocks pared most of their steep losses from the morning. The S&P 500 dipped 0.2% Wednesday after trimming a