ROISfix - RUONIA Overnight Interest Rate Swap – is a reference interest rate (fixing) indexed to RUONIA. It is calculated on the basis of quotes provided by active market participants (contributors) and published by National Foreign Exchange Association (NFEA) according to "The NFEA terms of the daily fixing of OIS rates based on RUONIA" and. The list of the contributors is determined by NFEA.

NFEA’s information partner is Thomson-Reuters.

Reference rate ROISfix is published every business day at 12.30 on Thomson-Reuters page <ROISFIX=> and on NFEA’s official site.

More details are available on roisfix.ruonia.ru.