The investment bank at UBS this morning leapt to the top of the charts for revenue growth in the second quarter compared with its average revenues since the start of last year, while German rival Deutsche Bank showed its resilience by turning in a smaller revenue fall than many of its rivals.

Revenue generation across investment banking has come under increasing scrutiny amid growing fears that trading volumes, which have plunged since the end of the first quarter, could remain depressed for much of this year, threatening the recovery in investment banking and capital markets and prompting banks to reassess their expectations for 2010.