This Amundi UCITS compliant Exchange Traded Fund (ETF), named "EUR Overnight Return Acc," is designed to mirror the performance of its underlying benchmark, the Solactive Euro Overnight Return Index. The Solactive Euro Overnight Return Index is compiled by taking the Euro Short Term Rate (ESTER) and adding a fixed margin of 0.085%. ESTER itself is a key short-term interest rate, based on daily money market transaction data collected from the 52 largest banks within the Eurozone.