UBS shares dropped about 4 percent on Monday morning despite reporting a 19 percent jump in net profit in the first quarter of the year.
The bank showed a somewhat cautious outlook going forward and some analysts were unhappy with the performance of certain divisions.
UBS warned that the second quarter of 2018 could include higher funding costs related to long-term debt and regulatory operations compared to the same period in 2017. It also cited geopolitical tensions and the rise of protectionism as threats to investor confidence.
Speaking to CNBC, UBS Group CEO Sergio Ermotti said the bank's outlook is "balanced" and it has a "realistic view of the world." He also said that UBS has proved that it is able to deliver good results in different market environments.
The move in the share price was also caused by a slow performance, if investment banking is excluded.