UK Stock Market Biggest Gainers Today (10 December 2025): Small-Cap Surge as FirstGroup, Made Tech & ProCook Jump

The UK stock market may be treading water index‑wise today, but under the surface there's a full‑on sprint going on among small and mid‑cap names. As traders wait for the US Federal Reserve's latest rate decision, a cluster of UK stocks are posting double‑digit gains on fresh earnings, contract wins and restructuring news.