Merchants work on the ground of the New York Inventory Alternate throughout morning buying and selling on April 17, 2026 in New York Metropolis.
Michael M. Santiago | Getty Pictures
LONDON — European shares fell on Monday, amid fears {that a} re-escalation of U.S.-Iran tensions over the weekend might derail the delicate ceasefire between the 2 nations.
The pan-European Stoxx 600 was 0.9% down in early dealmaking.
The U.Ok.’s FTSE 100 index opened 0.4% decrease, with Germany’s DAX down 1.3%, and France’s CAC 40 down nearly 1.1%, with Italy’s FTSE MIB 1.2% down. Most sectors had been in damaging territory shortly after the opening bell.
President Donald Trump stated Sunday {that a} U.S Navy guided missile destroyer had fired on and disabled an Iranian-flagged cargo ship within the Gulf of Oman earlier than Marines boarded and seized the vessel.
The seizure is an escalation of the U.S.’ blockade of the strait and comes after Iran fired upon industrial vessels making an attempt to transit the maritime passage earlier Sunday.
Since final week, the U.S. has been working a naval blockade of ships getting into and exiting Iranian ports. Iran views the continued blockade as a breach of the continued ceasefire, which it cites this as one in all its causes for calling off the anticipated negotiations on Monday in Islamabad.
Trump warned on Sunday he would “knock out each single Energy Plant, and each single Bridge, in Iran” if Tehran didn’t conform to Washington’s phrases to finish the battle. The delicate ceasefire between the 2 nations will expire this week.
Asia-Pacific markets had been buying and selling largely increased in a single day however U.S. futures fell early Monday. The declines come after a successful week for Wall Avenue, with the S&P 500 and Nasdaq Composite climbing to all-time highs final week following a ceasefire between Iran and Lebanon.
Iran had declared that the Strait of Hormuz was reopened, however by Saturday, vessel site visitors by that key transport lane was restricted once more, with state media saying the U.S. “didn’t fulfill their obligations.”
There are not any main earnings or information releases in Europe on Monday.
— CNBC’s Justina Lee and Fred Imbert contributed to this market report.

