1/3/10 HC Reform Update by Mark Sanna: Health shares have seen a sudden boost in recent weeks, with stocks including Cigna, Humana, United Health and Wellpoint all experiencing rises in their stock prices. The positive trading is due in part to the healthcare reform bill being passed at the end of December. In particular, all versions of a government-backed health insurance plan have largely been eliminated, which was a major concern for US private healthcare companies.