UnitedHealth probe over Medicare billing

On this episode of Stock Movers:
- Shares in credit card and banking firms slide in premarket trading on Monday as President Donald Trump said credit-card lenders would be “in violation of the law” if the firms don’t cap interest rates at 10% for one year.
- UnitedHealth shares slip as much as 3.1% in premarket trading after the Wall Street Journal reported that a Senate committee investigating the company’s practices found that the health insurer deployed “aggressive tactics” to collect payment-boosting diagnoses for its Medicare Advantage members.

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