The CAC 40 lost 1.1% to close at 8,331 on Monday, reversing gains from the previous week and tracking declines across European markets as investors were unsettled by renewed tensions between the US and Iran. Over the weekend, Washington seized an Iranian cargo vessel that allegedly attempted to breach a blockade, while Tehran vowed to retaliate and also withdrew from a second round of ceasefire talks. These fresh developments have driven oil prices sharply higher, reigniting concerns over inflation and broader economic growth, as elevated energy costs continue to weigh on oil-importing European economies. Luxury heavyweights declined, particularly LVMH (-1.8%), Hermes (-2.6%), and Kering (-2.1%). Financial stocks also underperformed, including BNP Paribas (-1.8%), Credit Agricole (-1%), and Societe Generale (-2.6%). In contrast, TotalEnergies climbed 1.8% amid higher crude prices due to escalating geopolitical tensions in the Middle East.