FTSE 100 Falls as Middle East Tensions Escalate and US-UK Deal Excludes Steel Relief

3 min read | June 17, 2025 09:35 AM BST | By Team Kalkine Media

Highlights

  • FTSE 100 slips amid geopolitical uncertainty and rising oil prices

  • US-UK trade pact confirmed, but steel sector misses tariff reduction

  • Defence engineering firm LON:RCF issues warning on weak demand

Markets opened lower on Tuesday as FTSE 100, FTSE 250, and FTSE AIM UK 50 INDEX reflected heightened geopolitical concerns. Continuing military tensions between Israel and Iran contributed to a downturn across major UK indices. The decline also followed developments at the G7 summit, where US President Donald Trump issued a stark warning amid escalating regional conflict.

The FTSE 100 showed noticeable downward pressure, with several sectors impacted by both global events and domestic challenges. A significant rise in oil prices provided limited upside for oil majors, while airlines and mining stocks led the decliners.

Energy Stocks Advance Amid Rising Oil Prices

Oil producers (LON:BP) and (LON:SHEL) traded higher in early sessions, benefiting from a surge in global oil prices. With energy supply concerns heightened due to conflict in the Middle East, crude benchmarks extended their upward trajectory, reflecting market nervousness around potential supply disruptions. Gains in these stocks helped cushion broader losses across the FTSE 100.

Travel and Mining Stocks Under Pressure

Airline group (LON:IAG) recorded one of the steepest drops among blue-chip constituents, impacted by the geopolitical uncertainty and rising fuel costs. Travel demand sensitivity to international unrest and higher operating costs placed pressure on sentiment.

Mining firms (LON:FRES) and (LON:GLEN) also traded lower. Softened metals pricing and market caution weighed on these stocks, contributing to sector-wide weakness. Reduced appetite for risk assets such as precious metals mirrored broader global investor concerns.

Steel Sector Excluded From New US-UK Trade Agreement

The newly confirmed trade agreement between the US and the UK brought relief to automotive and aerospace sectors, but the omission of steel tariff reductions drew criticism. Despite earlier expectations of a full removal, import duties on UK steel remain in place, disappointing stakeholders in this economically vital industry.

While UK car manufacturers benefit from eased levies, and aerospace faces no import taxes, the steel sector continues to be burdened by high tariffs. This has sparked renewed concern over the global competitiveness of the UK steel industry.

Engineering Firm Warns on Earnings Outlook

(LON:RCF), a consultancy specialising in the defence sector, issued a trading update noting significant shortfalls against its expectations. The company highlighted delays and spending reductions by both current and prospective clients, impacting revenue visibility.

These headwinds have led the company to revise its full-year performance guidance. The announcement triggered a sharp drop in the share price, placing it among the biggest fallers in the FTSE AIM UK 50 INDEX.

UK Labour Market Faces Strain from Tax Changes

A survey of domestic business sentiment revealed growing pressure on the UK labour market. An increase in national insurance contributions has led many business owners to reduce staff, cut hours, or freeze pay. The research indicated that job reductions have already taken place across a significant portion of surveyed companies, adding another challenge to the UK’s economic recovery trajectory.

As tax-related pressures combine with broader economic uncertainties, business leaders continue to evaluate cost-control strategies in response to tighter financial conditions.


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