A 5.3% October decline in the Nasdaq Composite has put UK savers’ exposure through individual savings accounts (ISAs) invested in shares and defined-contribution pensions in focus, though each account’s result depends on its investments.
Nasdaq’s October review said investors were giving more weight to the speed of free-cash-flow conversion after AI infrastructure spending and the expected wait for returns. The index’s monthly loss was its weakest since March 2025. Technology shares fell 6.8% and communication services stocks dropped 15.1%, even as nine of the 11 S&P 500 sectors advanced. The S&P 500 fell 0.9% for the month, while the Dow Jones Industrial Average rose 1.8% and the Russell 2000 gained 0.6%.
The Associated Press reported that on Monday, Nov. 2, the Nasdaq Composite fell 1.1% and the S&P 500 lost 0.5%, while the Dow gained 0.4% and most U.S. stocks advanced.
Intel shares fell 28.6% on Oct. 30, the Associated Press reported, after the company forecast fourth-quarter revenue of $15 billion to $16 billion. Intel’s third-quarter revenue was $16.5 billion, up 21% from a year earlier. Its Data Center and AI business grew 78% to $7.3 billion, while Client Computing and Physical AI Group revenue declined 5% to $8.1 billion. Intel CFO David Zinsner said the PC slowdown was expected to continue through at least the first half of 2027.
Alphabet Class A shares fell 12.6% on Oct. 29, according to the Associated Press. Alphabet reported third-quarter revenue of $127.6 billion, up 25%, and Google Cloud revenue of $30.7 billion, up 103%. Its capital expenditures for the first nine months of 2026 totaled $132 billion, compared with $63.6 billion in the same period a year earlier. Alphabet and Google CEO Sundar Pichai said AI investment was driving higher usage and query growth, including commercial queries.
Stocks and shares ISAs can hold company shares and investment funds. The U.K. government says investment income and capital gains in an ISA are tax-free, but that tax treatment does not prevent its investments from losing value.
Defined-contribution pension pots are invested and can rise or fall. MoneyHelper says diversified funds may include shares, bonds, property and infrastructure. Defined-benefit pensions follow a different structure: MoneyHelper says their promised benefits are not affected by stock-market movements, and the scheme manages investments to meet those obligations.
The market figures describe index and share performance, not any saver’s portfolio. An ISA or defined-contribution pot may have a different mix of assets and exposure; defined-benefit members’ benefits follow the terms promised by their scheme.
