Shares in Zurich Financial Services rose 4.6% yesterday after Rolf Hüppi announced he is to resign as chairman and member of the board - thus severing his remaining ties with the company.
However, analysts have warned that the group still faces uncertainty until it names a new chief executive to replace him.
Hüppi will be replaced as chairman by the current vice chairman, Lodewijk van Wachem, subject to his re-election at the company's annual general meeting in May.
