Weekly Market Update: 23rd October 2026
By Georgia Holmes
UK market update covering financial and economic developments, including currency movements, stock market performance, mortgage regulation, proposed VAT changes, the debate over bank taxation and the Energy Wealth Fund.
The UK financial landscape remains firmly focused on the upcoming Autumn Budget on 28 October. Sterling has strengthened, while investors continue to assess the outlook for inflation, interest rates and government borrowing costs. At the same time, changes to mortgage lending rules are approaching, proposed VAT reforms could affect online marketplaces and their sellers, and the International Monetary Fund (IMF) has urged the Government to consider alternatives to further taxes on banks.
Here are five key developments from 17–22 October 2026 and what they could mean for households, investors and businesses.
Sterling strengthens ahead of the Autumn Budget
Sterling has strengthened ahead of the Autumn Budget, supported by expectations of tighter monetary policy and developments in international currency markets.
On 22 October, the pound traded around $1.34 against the US dollar. It has also benefited from weakness in the euro, with concerns about European fiscal conditions helping sterling outperform other currencies. UK inflation rose to 3.5% in September, up from 3.1% in August, strengthening expectations that the Bank of England could raise interest rates again.
The Budget, scheduled for 28 October, remains an important event for currency markets. Investors will be looking for clarity on taxation, public spending and the Government’s approach to managing public debt. A credible fiscal plan could help support confidence in UK assets, while unexpected measures or concerns about borrowing could increase volatility.
For businesses trading internationally, currency movements can affect import costs, export revenues and profit margins. Individuals transferring money overseas or holding assets in different currencies may also notice the impact.
Sterling’s recent strength is encouraging, but it should not be taken as a guarantee of further gains. Inflation, interest-rate expectations and the details of the Budget will remain important influences.
UK stock market performance and gilt yields
UK equities have faced a more cautious trading environment as investors weigh corporate earnings, higher energy prices and the approaching Budget.
On 22 October, the FTSE 100 fell by 0.5% to 10,699.33, while the FTSE 250 declined by 0.9%. Banking shares were among the main areas of weakness, with investors considering the potential impact of further taxation on the sector alongside wider concerns about borrowing costs and market sentiment.
Government bond yields remain another important part of the picture. The 30-year gilt yield briefly moved above 6% earlier in October, reaching a level not seen since 1998. Higher yields increase the Government’s cost of borrowing and can influence financing costs across the economy.
Gilt yields also matter to households and businesses because they can affect the pricing of fixed-rate mortgages, corporate loans and other financial products. For investors, rising yields can put pressure on the prices of existing bonds, while also changing the relative appeal of bonds compared with equities.
Mortgage lending changes take effect on 28 October
Changes to UK mortgage lending rules are due to take effect on 28 October 2026, giving lenders greater flexibility over how they manage higher loan-to-income (LTI) lending.
Under the revised framework announced by the Prudential Regulation Authority (PRA),…