Wall Street has reacted favorably to the Senate bill. Stock prices of health insurance companies have been soaring since October 27, when independent Senator Joe Lieberman announced that he would filibuster any healthcare reform bill that included a public option. Since then, the stock value of CIGNA has jumped 29 percent; Aetna, 27 percent; UnitedHealth, over 20 percent; and Humana, almost 14 percent. During that same period, the Dow Jones Industrial Average has risen by just over two percent.