European shares muted as investors cautious ahead of US data, ECB decision

European shares remained largely unchanged as investors exercised caution ahead of the European Central Bank's policy announcement and U.S. inflation data. The STOXX 600 index rose slightly, with mixed performances across sectors. Retail and energy stocks saw gains, while healthcare and financials declined. The ECB is expected to hold rates, with attention on its forward guidance. Meanwhile, central banks in Norway and Sweden maintained their rates. Key movements included Aeroports de Paris falling after a regulatory decision and Rational AG rising following a brokerage upgrade.