London CNN —Shares in European banks slumped Wednesday as speculation about the health of Credit Suisse (CSGKF) reignited the market turmoil sparked by the collapse of Silicon Valley Bank. Europe’s benchmark Stoxx Europe 600 Banks index, which tracks 42 big EU and UK banks, has fallen 13% since last Wednesday’s close. In 2018, former President Donald Trump watered down key parts of the Dodd-Frank Act, which set stricter rules for the banking sector. But European banks are required to hold capital to cover the risk of a large and sudden change in borrowing costs. “This means that European banks have less exposure to market risk on bonds, despite a similar rise in yields,” Moody’s said in its note.

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