Weekly Market Update: 2nd October 2026
By Georgia Holmes
UK market update covering pensions, ISAs, tax, investments, interest rates and the 2026 Autumn Budget, plus key market and economic developments.
The UK financial landscape has been particularly eventful this week, with investors weighing renewed inflation concerns, higher oil prices and rising government borrowing costs against stronger-than-expected economic growth.
At the same time, the government has announced significant proposals affecting pensions and social care, while changes to ISAs and a new vaping duty have also come into focus. With the Autumn Budget due later this month, investors, business owners and households are watching closely for further changes to tax and savings policy.
So, what has changed in the UK this week, and what could it mean for your finances?
Markets: Rising Bond Yields Put Pressure on Investors
UK markets have come under renewed pressure as rising oil prices and persistent inflation concerns have pushed government bond yields higher.
The FTSE 100 fell 0.29% on 30 September to 10,606, recording its biggest monthly decline since March, although it still recorded a seventh consecutive quarterly gain. The FTSE 250 also fell over the month, despite rising 0.68% on the final trading day.
The pressure continued into 1 October. The FTSE 100 fell sharply during the session, while the yield on 30-year UK government bonds, or gilts, moved above 6%, its highest level since 1998.
One of the key drivers has been the increase in oil prices. Brent crude moved above $100 a barrel, raising concerns that higher energy costs could keep inflation elevated and make it harder for central banks to reduce interest rates.
For investors, higher gilt yields can affect both bond prices and the cost of government borrowing, while also influencing the rates available elsewhere in the financial system.
Economy: Growth Revised Higher Despite Inflation Concerns
There was some more positive economic news this week, with revised figures showing the UK economy grew faster than initially estimated.
The Office for National Statistics reported on 30 September that UK GDP increased by 0.5% in the second quarter of 2026, compared with the previous estimate of 0.4%. Growth in the first quarter was also revised to 0.6%.
The figures provide a stronger picture of economic activity, although the outlook remains complicated by higher energy prices and inflationary pressures.
This creates a difficult backdrop for the Bank of England. Bank Rate was held at 3.75% in September, but markets have increasingly considered the possibility of further rate rises if inflation remains persistent.
For households, this could affect mortgage rates, savings returns and borrowing costs. For investors, interest rate expectations can influence the relative attractiveness of cash, bonds and equities.
Pensions: Government Announces Changes to the Triple Lock
One of the biggest financial policy developments this week was the government's announcement of proposed changes to the State Pension triple lock.
The government has confirmed that the current triple lock will remain in place until April 2030. After that, it proposes adjusting the system so the State Pension would rise by at least inflation or 2.5% each year, while also including a mechanism designed to maintain its value relative to average earnings over time.
The government…