Stocks: 6 things to know before the bell

Deutsche Bank is a $2 trillion problem

1. Deutsche Bank slumps: Shares in Germany’s biggest lender plunged more than 7% to a new record low after reports indicated that 10 hedge fund clients are reducing their dealings with the bank.

The action by the hedge funds, first reported by Bloomberg, is fueling anxiety about the bank’s financial health. Investors also worry whether it can afford a looming U.S. fine for trading in toxic mortgages a decade ago.