Stocks bounce back from wobbly start

Stocks shock off an early wobble on Wall Street Tuesday, finishing modestly higher and extending the market’s gains into a fourth week. Solid earnings from Walmart encouraged investors to bid up other retailers and consumer goods companies. Communication services stocks and banks also contributed to the broad gains. The benchmark S&P 500 index gained 4.16 points, or 0.1 percent, to 2,779.76. The Dow Jones Industrial Average rose

8.07 points, or 0.03 percent, to 25,891.32. The Nasdaq composite added 14.36 points, or 0.2 percent, to 7,486.77.