Shares in Credit Suisse have dropped by 25% in the space of a month, with Switzerland's second biggest bank reeling from its exposure to the collapse first of Greensill Capital and then Archegos Capital Management.

"Our assessment is that the incidents are not systematic and they remain manageable by Credit Suisse," Mark Horton told reporters after the International Monetary Fund (IMF) published its report on Switzerland.

"Credit Suisse took a number of actions; to change its management team, to limit dividends and to have some external assessments of some of the developments that have taken place," Horton said on Wednesday.

"We don't see this as damaging to Switzerland in a meaningful way either to its financial sector or to the economy as a whole," he added.

Credit Suisse entered the coronavirus crisis with strong capital and in a strong position, Horton said, adding that it had sufficient resources to manage its problems.

"It is seen as an internal matter that the bank itself needs to address and has begun to do so," he said.

(Reporting by John Revill; Editing by Alexander Smith)