Palantir (PLTR) shares closed higher on Monday after the Denver-headquartered firm announced a partnership with Poland’s Defense Ministry, marking a notable expansion of its European footprint. The collaboration strengthens Palantir’s position in NATO’s eastern flank amidst growing regional security concerns and increased defense spending across Europe. More News from Barchart Following today’s gains, Palantir stock is trading roughly 200% above its year-to-date low. www.barchart.com Significance of P ...