The news: Credit Suisse shares plummeted to an all-time low amid worries over its financial position as banking sector turmoil spread to Europe.

  • At one point on Wednesday, the bank's stock fell by 30% and trading was halted several times.
  • Credit Suisse was reportedly forced to call on the Swiss National Bank and the country's regulator Finma for a public show of support, according to the Financial Times.
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