On this episode of Stock Movers:

- Capital One (COF), American Express (AMEX), Visa (V), along with shares of other US banks sank after President Donald Trump called on credit-card companies to cap interest rates at 10% for a year, a move that could wipe out billions in profits for one of the banking industry’s biggest businesses. Capital One, the largest US card issuer, tumbled as much as 8.2% in New York, the biggest intraday decline in nine months, after the president surprised the industry with a move he said could go into effect next week. American Express dropped 4.2% and JPMorgan Chase & Co., No. 2 in the card rankings, dropped 1.6%. Card interest rates, which have been hovering above 20% in recent years, have been a target of US lawmakers on both sides of the aisle, with bills popping up proposing similar caps and meeting stiff resistance from the industry. Trump, speaking Sunday to reporters, set a Jan. 20 deadline for companies to comply or risk being “in violation of the law.”