Palantir Stock (PLTR): What to Know Before the U.S. Market Opens on Monday, Dec. 15, 2025
Palantir Technologies (NASDAQ: PLTR) heads into the Monday, Dec. 15 session after a volatile stretch that has still left the stock massively higher over the past year—and squarely in the spotlight of two powerful themes: defense modernization and the AI infrastructure buildout. As of the Friday, Dec. 12 close, PLTR finished at $183.57 (down 2.12% on the day), after trading between roughly $177.67 and $186.52, with volume around 42.43 million shares. Investing.com Below is what investors and traders typically want on their radar before the bell: the latest headlines, the most important fundamentals from Palantir’s most recent quarter, where Wall Street stands on valuation, and the key catalysts that could move PLTR next.