The STOXX 50 gained 0.4% and the STOXX 600 added 0.2% on Wednesday, following a lacklustre open, with traders welcoming a fresh wave of corporate earnings while awaiting the FOMC decision later in the day. Autos and banks led sector gains, while travel and leisure, household goods, and insurance lagged. UBS rose 2.3% after reporting a sharp increase in net profit, GSK climbed 4% after raising its outlook, and Deutsche Bank gained 3% following a surprise rise in earnings. Santander advanced 1.5% after posting a sixth consecutive quarterly record in net income, Mercedes-Benz jumped 6% after reaffirming its full-year guidance and restarting its share buyback program, and Next surged 4.9% after lifting its profit outlook. On the downside, Equinor fell more than 1% after reporting a larger-than-expected drop in profit. SAP extended losses and fell 1.4%. Adidas lost 1% after warning of a challenging backdrop due to US tariffs.