The FTSE 100 remained closed on Monday, 4 May 2026, because of the UK Early Spring Bank Holiday, leaving British investors unable to immediately react to major geopolitical developments unfolding across global markets.
During the market closure, tensions in the Middle East intensified sharply after the UAE confirmed that it intercepted several Iranian missiles. At the same time, reports emerged that US naval forces had destroyed multiple Iranian boats in the Gulf region. The developments triggered a strong reaction in energy markets, with Brent crude oil prices jumping nearly 6% and briefly moving above $114 per barrel.
Because London markets were shut, investors across the UK were forced to wait until Tuesday’s reopening to respond to the rapidly changing situation.
FTSE 100 Performance Before the Market Closure
Before the bank holiday break, the FTSE 100 ended Friday’s session at 10,197.85 points, recording a modest decline of 0.37%. Despite the slight drop, the UK index has remained near the upper end of its yearly trading range.
The broader European market also showed limited movement during the previous week. The STOXX Europe 600 closed with only a small gain of around 0.10%, reflecting cautious investor sentiment as global economic risks continued to grow.
At the same time, the Bank of England kept interest rates unchanged at 3.75% during its latest policy meeting. Officials warned that energy prices remain highly unpredictable due to geopolitical instability, while inflation pressures continue to affect the British economy. UK consumer inflation recently climbed to 3.3%, remaining above the central bank’s long-term target.
Why the FTSE 100 Is Different From Other European Indexes
One reason the FTSE 100 has remained relatively resilient during rising oil prices is its heavy exposure to the energy sector. Major oil companies including Shell and BP hold significant weight within the index.
Historically, higher crude prices tend to support these companies because stronger oil revenues improve earnings expectations. This means the FTSE 100 can sometimes perform better than other European indexes during periods of energy market volatility.
Over the past 12 months, the FTSE 100 has traded within a broad range between roughly 7,500 and 10,457 points. Much of the recovery from previous lows has been driven by strength in commodity and energy-related stocks.
Impact of the Iran Conflict on the UK Economy
Although the UK economy showed stronger-than-expected growth earlier in 2026, the ongoing Iran conflict has created new uncertainty for businesses and consumers.
Britain recorded monthly economic growth of 0.5% in February, significantly above analyst forecasts. However, economists now warn that continued geopolitical tensions could weaken future growth momentum.
Several sectors are already feeling pressure. Airline company EasyJet recently issued a profit warning, linking weaker travel demand and operational disruptions directly to the Middle East conflict. Rising fuel costs and fears of broader instability are also affecting tourism and transportation industries across Europe.
The wider UK economy faces risks through several important channels:
- Rising energy prices increasing inflation
- Higher transportation and shipping costs
- Disruptions to global trade routes
- Slower European economic growth
- Pressure on consumer spending
Retail activity has also weakened sharply. The Confederation of British Industry reported that its retail sales balance dropped to -68 in April 2026, marking the lowest reading since records began in 1983.
What Investors Expect When Markets Reopen
When London markets reopen on Tuesday, traders are expected to react aggressively to the weekend’s geopolitical escalation.
Energy stocks could attract early buying interest because higher oil prices generally improve profit expectations for producers. Shares connected to oil, gas, and commodities may outperform during the opening session.
On the other hand, sectors vulnerable to slowing economic growth may face selling pressure. Travel companies, retailers, automobile manufacturers, and consumer-focused businesses could struggle if investors become more concerned about inflation and weaker demand.
Currency markets will also remain important. A prolonged rise in crude oil prices often places pressure on the British pound because the UK imports a large amount of energy. A weaker pound can further increase inflation by making imported goods more expensive.
This creates an additional challenge for the Bank of England, which is already trying to balance economic growth with inflation control.
Technical Outlook for the FTSE 100
From a technical perspective, the FTSE 100 remains close to historically high levels despite growing uncertainty.
The 10,000-point mark is now considered a major psychological support level for traders. If global market fears continue to increase, investors will closely watch whether the index can remain above this key threshold during Tuesday’s session.
A break below 10,000 could trigger additional volatility and short-term selling pressure. However, continued strength in energy stocks may help limit deeper declines if oil prices stay elevated.
For now, market direction will likely depend on two major factors: developments in the Middle East conflict and the future path of global oil prices.
