United Kingdom broad money supply growth weakened in September 2026, with the M4 aggregate rising just 0.1% month-over-month, down from a 0.4% expansion recorded in August 2026. The latest data, updated on 29 October 2026, point to a notable deceleration in the pace of monetary growth.
On a month-over-month comparison basis, the “actual” September figure reflects how much M4 changed versus August, while the “previous” August reading captures the change relative to July. The step down from 0.4% to 0.1% suggests a cooling in liquidity growth across the UK financial system, which may indicate softer credit creation or more cautious financial conditions heading into the final quarter of 2026.
