Definition
Euro Overnight Index Average
Further information
Until its final discontinuation in January 2022, the EONIA was the benchmark for the euro overnight interest rate.
A private sector working group on risk-free interest rates recommended that market participants gradually replace EONIA with the new euro short-term rate (€STR) starting from October 2, 2019. In the interim, the European Central Bank calculated EONIA on behalf of the European Money Markets Institute (EMMI), a non-profit organization based in Brussels. The EMMI indicated that, to provide the market with sufficient time to transition to €STR, from its availability until January 3, 2022, EONIA would be calculated by applying a spread to €STR (€STR + 8.5 basis points).
General notes to the statistics on interest rates applied by MFIs to euro area residents.
Related concepts
Update date: January 2025