Credit Suisse registered almost no profit growth for the fourth quarter of last year, as Switzerland's second-biggest bank seeks to restructure and zero in on extremely wealthy clients.

Zurich-based Credit Suisse has winnowed some private banking recently by pulling back from the domestic German market and dropping cross-border Swiss banking services for clients from dozens of countries. The bank also recently established so-called nonstrategic units, which house parts of its investment bank that are to be wound down at a loss, as well as restructuring and legal costs.