The logo for Wells Fargo is a six-horse stagecoach, chosen because the US bank once used one to bear gold and bankers across the Wild West. After advising on the $28bn buyout of Heinz it may require a dozen such coaches to transport the advisory fees.

The fledging investment banking team at Wells Fargo - which before yesterday ranked 28 in Dealogic's global M&A table for the year-to-date - landed its biggest-ever mandate when it was chosen as financial adviser, alongside JP Morgan, to Warren Buffett's Berkshire Hathaway and US-based investment firm 3G on their bid for the ketchup and baked bean maker. Lazard is lead financial adviser to the consortium.