Rheinmetall Aktie (Rheinmetall AG shares) traded lower on Monday, 15 December 2025, as markets digested fresh developments around high-level Ukraine talks in Berlin—headlines that have recently been enough to move Europe’s defence stocks even when company fundamentals remain strong. By late morning/early afternoon trading, Rheinmetall shares were down roughly 2–3%, with Reuters reporting a 2.8% drop as defence names broadly slipped. Reuters The pullback came despite a notable piece of supportive news for Rheinmetall’s longer-term land-systems pipeline: Germany’s competition authority, the Bundeskartellamt, has approved an expansion of a Rheinmetall-KNDS joint venture framework to support a future Bundeswehr main battle tank project—an “interim solution” designed to bridge capability needs