- Credit Suisse has delayed filing its annual report after a call from the US financial watchdog.
- Investors are fretting about the Swiss banking giant's finances after back-to-back annual losses.
- Shares fell 5% in premarket trading Thursday, having slumped to a record low last week.
Credit Suisse delayed filing its annual earnings Thursday after getting questions from the US's financial watchdog, which fired up investors' fears about its overall health.