U.S. stocks rose modestly Tuesday. Dow Jones industrial average rose 164.07, or 0.6 percent, to 26,828.47. Standard & Poor's 500, the broader index rose 11.90, or 0.4 percent, to 3,306.51. The technology-heavy Nasdaq composite index rose 38.37, or 0.35 percent, to 10,941.17.