ZURICH (Reuters) - UBS
The Swiss bank displaced Bank of America Corp
The ranking is a coup for scandal-tarnished UBS, which in October said it would axe 10,000 staff and scale back its riskier investment banking division in favor of its private bank.
Activist fund Knight Vinke in May launched a campaign to break up UBS, though a forecast-beating first quarter and the highest wealthy customer inflows in six years took some of the sting out of the shareholder's demands.
Overall, private banks won 24 percent more net new money, which represents a dramatic turnaround. Financial providers to the wealthy had struggled to win back client confidence in the wake of the global financial crisis.
However, the inflows have not yet translated to greater profits, which rose only 5.3 percent, according to Scorpio. This means private banks must still cut costs to lift profitability.
"The analysis of the data shows there are still signs of weakness in the model for many operators," Scorpio said in the study.
Private banks typically sit on a high base of fixed costs, and in many cases, costly trading arms, so they rely on transaction fees generated by client trades for income.
This presents a problem when clients remain on the sidelines and park in cash products, as they largely have done since the financial crisis despite urgings from their advisors.
The findings come as private banks pull out the stops to entice the fast-growing ultra-rich segment, which although is not more profitable than the wealthy sector, makes up for it in volume.
The ultra-rich tend to feed more business to investment banking and asset management arms by demanding specialized and sophisticated services.
U.S. banks Wells Fargo
(Reporting By Katharina Bart; Editing by Louise Heavens)