UK Stock Market Slips as Oil Prices, Inflation, and US-Iran Tensions Weigh

The UK stock market is experiencing a modest decline on Thursday, August 20, 2026, with the FTSE 100 down 0.27% at 10,714.77 and the FTSE 250 lower by 0.33%.

Investors are weighing several factors, including higher oil prices, renewed inflation concerns, and ongoing geopolitical uncertainty, against a recovery in global bond markets.

The rise in crude oil prices is putting pressure on energy costs for airlines, transport companies, and other businesses that rely heavily on fuel. Brent crude was around $92 a barrel on Thursday, keeping energy prices elevated.

UK inflation remains a concern, with consumer price inflation rising to 2.9% in July from 2.6% in June. Although the figure did not produce a major surprise, it remains above the Bank of England's 2% target and could influence expectations for future interest-rate decisions.