India, July 13 -- UK Stock Market Today (July 13): The UK stock market is open today, Monday, July 13, 2026, and major indices are showing mixed to flat performance in early trading following sharp geopolitical escalations in the Middle East.

The FTSE 100 traded slightly lower on Monday as investors reacted to renewed geopolitical tensions in the Middle East following fresh airstrikes exchanged between the United States and Iran over the weekend. Iran claimed it had closed the Strait of Hormuz after launching attacks on US facilities across several Gulf countries, although US President Donald Trump dismissed the claim, stating that the vital shipping route remained open to commercial vessels.

UK Stock Market Today (July 13)

The UK stoc...