GDP monthly estimate, UK: October 2025

UK real GDP slipped 0.1% in the three months to October 2025 (the first three-month contraction since Dec 2023) and monthly GDP fell 0.1% in October, with services flat over the quarter, construction down 0.3% and production down 0.5%; on the month production rose 1.1% while services and construction fell 0.3% and 0.6% respectively. The weakness was driven largely by a 17.7% fall in the manufacture of motor vehicles, trailers and semi‑trailers—itself linked to a cyber‑attack at a major carmaker that also filtered through wholesale, retail and IT services—while manufacturing has now recorded consecutive three‑month declines. Although GDP is still 1.1% higher year‑on‑year, the data signal weakening momentum heading into the winter, underscore downside risks to growth and consumer‑facing sectors, and leave scope for upward revisions as survey returns and quarterly benchmarking are incorporated.

Analysis

UK real GDP fell 0.1% in the three months to October 2025 versus the three months to July 2025, the first three-month contraction since December 2023, and monthly GDP also declined 0.1% in October after September's 0.1% fall. Services showed no growth over the quarter while construction declined 0.3% and production fell 0.5%, although GDP remains 1.1% higher year‑on‑year.

The production sector underpinned the quarterly weakness: manufacture of motor vehicles, trailers and semi‑trailers fell 17.7% over the three months and was the largest single negative contributor (‑1.18 percentage points to manufacturing and ‑0.10pp to GDP). Manufacturing recorded its sixth consecutive three‑month decline, even though motor vehicle output rebounded 9.5% month‑on‑month in October after a 28.6% September fall and remains 21.8% below August levels. The ONS flagged a cyber‑attack at a major carmaker and consequent spillovers to wholesale, retail and IT services as an explanatory factor.

Services growth has slowed since March 2025 with 7 of 14 subsectors down in the quarter; professional, scientific and technical activities and information & communication were notable drags while human health and real estate provided modest upside. Early‑estimate limitations and survey response rates (MBS coverage and response variability) mean revisions are plausible; investors should watch the upcoming GDP quarterly national accounts (22 Dec 2025) and the January monthly bulletin for potential revisions and further clarity.

Key Decisions for Investors

• Reduce directional exposure to UK auto OEMs and tier‑1 suppliers and consider hedges against further production disruption given the 17.7% three‑month fall in motor vehicle manufacture and ongoing volatility in the sector
• Increase relative exposure to defensive domestic sectors that showed resilience, namely human health and parts of real estate, which contributed positively to services growth in the quarter
• Selectively add to industrials with idiosyncratic strength such as computer, electronic and optical manufacturing (up 3.0% over three months) and utilities/water suppliers (water +1.2%, electricity/gas +0.3%), while avoiding broader cyclicals until data clarity improves
• Delay large directional UK equity bets until ONS revisions and the Autumn Budget impact are clearer (watch 22 Dec 2025 quarterly national accounts and the 15 Jan 2026 monthly release), and size positions defensively to account for revision risk
• Trim or hedge exposure to UK construction and private housing names given three‑month weakness in construction (‑0.3%) and falls in private housing repair/new work, and monitor consumer‑facing retail momentum which was weak in October