Matching and negotiation platform Wematch said the transaction is the first to be negotiated on an electronic basis.
Wematch has previously gained investment from JP Morgan and Societe Generale for its matching technology and platform.
Wematch has appointed industry veteran and former chief executive of MTS and EBS, Jack Jeffery, as chairman.
Wematch has 40 banks using its platform, having been part of FinTech programmes at both JP Morgan and Societe Generale.
Wematch IRS adds JP Morgan, RBC, HSBC and Societe Generale to dealer-to-dealer platform.