improvement retailer raised its full-year profit outlook. Its shares rose 4 percent. The broader Standard & Poor's 500 index rose 9.94, or 1 percent, to 989.67. The technology-heavy Nasdaq composite index rose 25.08, or 1.3 percent, to 1,955.92. The New York Stock Exchange composite index rose 84.96 to 6,437.07. The American Stock Exchange composite index rose 27.00 to 1,667.67. And the Russell 2000 index rose 8.25 to 556.43.