European stocks declined, narrowing their monthly gain, as the autos and mining sectors experienced significant slumps. The Stoxx Europe 600 Index fell 0.8% at the London close but still managed a 0.9% gain for the month of July. This downturn was particularly influenced by a 50% tariff imposed by President Donald Trump on certain imports of copper to the US, which negatively impacted mining stocks.

Luxury sports car manufacturer Ferrari NV saw a substantial 12% drop in its shares, contributing to the broader decline in carmakers. This fall was attributed to disappointing demand for luxury vehicles. Conversely, Rolls-Royce Holdings Plc, the aircraft-engine maker, experienced a surge in its share price to a record high after it raised its financial outlook.

This market activity occurred on one of the busiest days for earnings reports, indicating a mixed sentiment across different sectors. Despite the overall monthly gain for the Stoxx Europe 600, the final day of July saw a notable correction led by auto and mining sector weaknesses.