Credit Suisse falls 20% after top holder says not investing more

Shares of Credit Suisse are moving lower after its top shareholder ruled out investing any more money in the bank. "The answer is absolutely not, for many reasons outside the simplest reason, which is regulatory and statutory," Saudi National Bank Chairman Ammar Al Khudairy said in an interview on Bloomberg TV. Shares of Credit Suisse are down 21% to $1.99 in premarket trading.