UBS AG said Monday it expects to swing to a pretax profit of at least 2.5 billion Swiss francs ($2.35 billion) when it reports first-quarter results next month, adding that outflows from wealthy clients are slowing.

The result would be the second quarterly profit in a row for the Swiss bank, which has been struggling to win back the confidence of wealthy customers and investors after a series of losses and a long-running tax evasion spat with the U.S.