The S&P 500 banks index (.SPXBK) dropped 6.6% on Thursday and was set to open lower again on Friday. The crisis at SVG was feeding growing investor concerns that banks will be vulnerable to the rising cost of money. In an unusual step, Commerzbank, one of Germany's largest banks, issued a statement, playing down any threat from SVB, saying it did not see "a corresponding risk for us". "The market is treating this as a potential contagion risk," said Antoine Bouvet, senior rates strategist at ING in London. A spike in interest rates has led to a sell-off in bonds, leaving banks exposed to potential losses on the securities they hold.

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