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FTSE 100 Edges Down as US-Iran Tensions Ease and UK Mortgage Approvals Slip

FTSE 100 Edges Down as US-Iran Tensions Ease and UK Mortgage Approvals Slip
Markets · 2026
Photo · Marcus Devlin for Daily Digest Invest
By Marcus Devlin Equities Correspondent Jun 29, 2026 4 min read

London's FTSE 100 index edged down 0.09% on Monday as investors balanced tentative signs of a pause in US-Iran tensions against fresh data from the Bank of England showing a dip in mortgage approvals. The modest decline reflects a market caught between relief over geopolitical risks and concern about the UK's economic momentum.

Geopolitical backdrop: A fragile pause

Deutsche Bank Research noted that overnight signals pointed to a temporary de-escalation between the US and Iran, with both sides reportedly agreeing to halt further attacks while technical talks resume in Doha this week. This development matters for global markets because reduced conflict risk helps stabilize oil prices and shipping routes, particularly through the strategic Strait of Hormuz. However, the bank cautioned that the situation remains fragile, with unresolved issues around transit rules and potential costs for vessels passing through the waterway.

The easing of tensions has had a ripple effect across asset classes. For example, aluminum prices hit a four-month low as the threat to supply chains receded, while oil prices rose to $69.96 as energy markets remained split between gains in West Texas Intermediate crude and losses in natural gas. The broader European market also felt the impact, with the DAX slipping as US-Iran talks kept oil risk in focus.

UK mortgage approvals fall to 56,205 in May

Adding to the cautious mood, the Bank of England reported that net mortgage approvals for house purchases fell to 56,205 in May, down from the previous month. This figure is a key indicator of housing market activity and broader consumer confidence, as it reflects the number of loans banks are approving for homebuyers. A decline suggests that higher interest rates and cost-of-living pressures are cooling demand for borrowing, even as the housing market has shown some resilience in recent months.

The data aligns with a broader trend of tighter credit conditions in the UK. The Bank of England has been monitoring lending closely as it balances the need to curb inflation against the risk of slowing economic growth. For everyday investors, softer mortgage approvals can signal weaker consumer spending ahead, which may weigh on corporate earnings and stock market performance.

What it means for investors

For those with money in UK stocks, the FTSE 100's slight dip reflects a market that is still digesting mixed signals. On one hand, a de-escalation in the Middle East reduces the risk of a sudden spike in oil prices, which would hurt energy costs for businesses and consumers. On the other hand, the drop in mortgage approvals points to a cooling UK economy, which could dampen corporate profits and drag on the index further.

Investors should watch for updates from the Doha talks this week, as any breakdown could reignite volatility in oil and shipping stocks. Meanwhile, the Bank of England's next interest rate decision will be closely scrutinized for clues on how policymakers view the balance between inflation and growth. The UK stocks have already dipped on Middle East tensions, and further geopolitical or economic shocks could extend the slide.

In the broader context, the FTSE 100's performance is also tied to global sentiment. The RBC Capital Markets raised its S&P 500 target to 8,150 on a resilient US economy, which could provide some support to UK equities if risk appetite improves. However, the immediate focus remains on the interplay between geopolitical stability and domestic economic data.

Overall, the FTSE 100's modest decline is a reminder that markets are navigating a complex landscape. While the US-Iran pause offers some relief, the drop in mortgage approvals underscores the challenges facing the UK economy. Investors should stay diversified and keep an eye on both geopolitical developments and central bank signals in the weeks ahead.

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