The Euro Stoxx 50 (ESTX50) is a stock market index that represents the performance of 50 of the largest and most liquid stocks of companies in the eurozone. It includes companies from various sectors, including banking, insurance, automotive, energy, and technology. The index is widely used as a benchmark for European stock markets and is closely watched by investors and analysts around the world. It is calculated by STOXX Ltd., a leading provider of global index solutions.