European stock markets traded near the flatline on Tuesday as investors absorbed news of fresh U.S. military action in Iran and its immediate market implications. By 03:05 ET (07:05 GMT), the pan-European Stoxx 600 was effectively unchanged. Major bourses diverged: Germany's Dax was down 0.3%, France's CAC 40 had slipped 0.4%, while the U.K.'s FTSE 100 was up 0.5%.
The market reaction came after the U.S. military carried out strikes it described as "defensive" in southern Iran, sinking two Islamic Revolutionary Guard Corps vessels that it said were attempting to lay mines in the Strait of Hormuz. Tehran responded by firing missiles at U.S. aircraft. The Wall Street Journal, citing a U.S. official, reported that subsequent American strikes struck missile launchers near Bandar Abbas.
Those developments dented recent optimism that Washington and Tehran were nearing a lasting agreement to end nearly three months of conflict. Over the weekend, reports indicated both sides had agreed in principle on a deal, and President Donald Trump had said talks were proceeding "nicely." At the same time, Trump warned the fighting could resume and even escalate if an agreement were not reached.
Energy markets reacted swiftly. Brent crude futures, the global benchmark, rose 2.4% to $98.39 a barrel after having fallen below $100 earlier in the week amid earlier reports of progress in U.S.-Iran negotiations that could reopen the Strait of Hormuz. Despite the pullback earlier in the week, Brent remains substantially above pre-war levels of around $70 a barrel, a dynamic that keeps the prospect of energy-driven inflationary pressure on the table.
European energy producers saw modest gains in response to the oil move. Shares of firms such as Eni, Repsol and TotalEnergies ticked higher as crude climbed. Those moves contrasted with pockets of weakness elsewhere in the region's equity market.
Among individual movers, shares of Ferrari, listed in Milan, fell by more than 5% after the automaker unveiled its first fully-electric vehicle. The drop in Ferrari shares stood out amid the otherwise subdued European session.
Market context and investor focus
Investors faced a mixed tape: geopolitical risk elevated in the near term after the U.S. strikes, oil prices moving back up from earlier dips, and selective strength in energy equities. Equity indices broadly held steady, reflecting cautious positioning as participants awaited clarity on whether diplomatic momentum between Washington and Tehran could be restored or would falter in the face of renewed hostilities.
Given the sequence of events described by U.S. officials and media reports, markets are balancing the potential for renewed supply disruption and the inflationary implications of higher crude against the possibility of de-escalation should negotiations resume.