Dow ends week at nearly 3-year high

a nearly 4% surge in shares of Travelers (TRV, Fortune 500), while IBM's (IBM, Fortune 500) and Alcoa's (AA, Fortune 500) stocks rose about 2%.The S&P 500 (SPX) rose 7 points, or 0.5%, with shares of Biogen Idec (BIIB, Fortune 500) and SLM (SLM, Fortune...