Citigroup

Credit card issuers have been trying to outdo each other to offer the best rewards program. And it shows, as customer satisfaction rates with many (but not all) of their banks have never been higher in a yearly J.D. Power study. But they may not last forever.

JPMorgan Chase is among four banks sued by a trustee for investors in the debt of Millennium Health LLC, alleging the lenders failed to inform them of a federal probe into the billing practices of the borrower.

Advancements aimed at speeding the flow of information by eliminating manual processing are helping the global custody bank attract new clients and win more business from existing ones, fueling revenue growth and improving efficiency.

Citigroup hopes to return $60 billion to shareholders by 2020 while earning $20 billion a year; SEC says companies that raise money by selling their own electronic tokens for cryptocurrencies may be subject to federal oversight.

Citi is holding its first investor day since the financial crisis, plugging credit cards and its Mexican business; Morgan Stanley's market cap tops Goldman's for the first time.