Frankfurt's DAX index exhibited resilience amidst initial fluctuations, ultimately advancing by 0.7% on Monday to close at a new all-time high of 23,935, marking its third consecutive day of gains. This performance eclipsed that of its European counterparts, buoyed by notable increases in Siemens Energy (up 3.6%), Münchener Rück (up 1.8%), Rheinmetall (up 1.7%), Continental (up 1.7%), and E.ON (up 1.6%). The optimistic market sentiment was largely driven by a significant accord reached between the UK and the European Union, which promises enhanced collaboration in critical sectors such as energy, trade, defense, travel, and fisheries. Additionally, geopolitical factors kept investors attentive as they awaited the results of a conversation between US President Donald Trump and Russian President Vladimir Putin.