Why Is Palantir (PLTR) Stock Up Today? "Program of Record" Milestone and UK Contract Win Spark 6.8% Rally

Palantir Technologies (PLTR) closed the session on March 23, 2026, with a significant 6.78% gain, ending at $160.90. The rally marks a major technical breakout for the data analytics specialist, which has surged 23% over the last 30 days. Investors flooded back into the stock following a historic Pentagon designation that shifts Palantir’s AI capabilities from experimental pilots to permanent, budget-backed fixtures of U.S. defense.