HSBC was the go-to investment bank in the heaviest week for new debt issuance by UK borrowers since the country voted to leave the EU on June 23 – with the possibility that bankers now face a smaller window than usual to take their summer holidays.

UK debt capital markets issuance for the week starting July 25 totalled more than $7.7 billion, according to data from Dealogic - the highest weekly total since late May. By late afternoon on July 29, the week had seen nine transactions launched by UK borrowers, the highest number since the week starting May 30.