Eurosystemet tilstræber at afvikle markedsoperationer , der udføres som ekstraordinære auktioner og bilaterale procedurer , på handelsdagen . Af operationelle årsager anvender Eurosystemet dog undertiden andre afviklingsdage for disse operationer , især for egentlige købs - eller salgsforretninger ( finjusterende og strukturelle ) og valutaswaps ( se tabel 3 ) .
11 Counterparties without a safe custody account with a national central bank or a securities settlement account with an SSS fulfilling the ECB 's minimum standards may settle the transactions of underlying assets through the securities settlement account or the safe custody account of a correspondent credit institution . Further provisions related to the settlement procedures are defined in the contractual arrangements applied by the national central banks ( or the ECB ) for the specific monetary policy instruments .