About these rates
The EFFR measures unsecured overnight funding in US dollars. Since the observation for 1 March 2016, it has been a volume-weighted median; earlier observations used a volume-weighted mean. It is a market rate, distinct from the FOMC’s policy target range. This page’s latest value uses daily DFF; its long history and summary statistics use monthly FEDFUNDS, beginning in 1954.
This page brings together central-bank policy rates, overnight market benchmarks such as SONIA, €STR and CORRA, and New Zealand lending and deposit rates from RBNZ surveys. These measures serve different purposes and are not interchangeable. Each series links to its history, definition, source and licence.
Choosing a country changes the order of the series, not their values or coverage. Euro-area countries share the ECB series; the site does not create national policy rates for them. Figures come from official files and are republished without alteration. Missing data is not estimated. Retail lending and deposit rates are available only for New Zealand. Readings may lag their source and are not financial advice.