Stocks are ending a wobbly day mostly lower as investors turn cautious following news of a surge in cases of the new virus in China, the AP reports. The latest figures dashed hopes that the spread of the outbreak was peaking, which had helped lift stocks throughout the week. The S&P 500 index fell 5 points, or 0.2%, to 3,374. The Dow Jones Industrial Average slid 127 points, or 0.4%, to 29,423. It was down as many as 205 points earlier. The Nasdaq fell 13 points, or 0.1% to 9,711. Small-company stocks rose. Bond prices rose. The yield on the 10-year Treasury note fell to 1.61%. (More stock market stories.)