March in stocks: Medicaid woes harm Humana; Shaq boosts Papa John’s

Stock swings of Louisville-based companies in March came with a clear message: Uncertainty is bad. Certainty is good — especially if that certainty is represented by Shaq. Concerns about government health insurance programs pushed investors to sell shares of health care companies including Humana, which fared worst in March among 14 companies tracked by Insider. […]