One of the customary wrangles over league table rankings is set to kick off on Monday and will centre on $28bn (€22.8bn) of league table credit in deal-depressed Europe. The move will mean that JP Morgan, which in one ranking is first, will feature less prominently in the other provider's table.

JP Morgan has emerged as the number one adviser for announced European mergers and acquisitions in the first half of 2010, according to Thomson Reuters - although the Wall Street bank is likely to feature further down the rankings published by rival data provider Dealogic on Monday owing to a discrepancy between how the two data providers have chosen to treat potentially the largest deal of the year.