The warning came as CSFB's parent company, Swiss bank Credit Suisse, delivered a third-quarter loss of Swfr299m (£127.2m) against a Swfr1.6bn (£880m) profit in the same period last year. The loss, predicted by the firm six weeks ago, was blamed on the troublesome economic environment and a large goodwill write-off following CSFB's acquisition of DLJ last year.