Stock markets slide, as oil prices fall

NEW YORK, NY (AP) - KEEPING SCORE: The Dow Jones industrial average slid 456 points, or 2.8 percent, to 15,922 as of 1:01 p.m. Eastern Time. The Standard & Poor's 500 index fell 56 points, or 3 percent, to 1,865. The Nasdaq composite dropped 162 points, or 3.5 percent, to 4,452. The Dow and S&P 500 have now fallen nearly 9 percent this year, while the Nasdaq is off 11 percent.

VOLATILE MARKET: Stocks were coming off a broad rally on Thursday that gave the S&P 500 index its biggest gain since early December. That gain was a reversal from a day earlier, when the market turned in its worst day since September. Behind the market swings are growing investor jitters about the slowdown in China's massive economy, plunging oil prices and the implications those trends may have for U.S. corporations.

SECTOR VIEW: The 10 sectors in the S&P 500 index moved sharply lower. Energy and financials stocks were down the most, about 4 percent.

COMPUTER PROBLEMS: Intel dropped 9 percent after the chipmaker posted its fourth-quarter results, noting its personal computer business continues to slump. The stock was the biggest decliner in the Dow. It fell $2.95 to $29.78.

VEGAS, BABY: Wynn Resorts jumped 9.1 percent after the casino operator said it expects to report a larger operating profit from its Las Vegas business. The stock climbed $4.70 to $56.20.

EUROPE: Stocks opened higher in Europe but quickly fell. Germany's DAX lost 2.5 percent, while France's CAC 40 dropped 2.4 percent. Britain's FTSE 100 dropped 1.9 percent.

BONDS AND CURRENCIES: Bond prices rose. The yield on the 10-year Treasury note fell to 2.03 percent from 2.09 percent late Thursday. The euro rose to $1.0955 from $1.0862, while the dollar fell to 116.77 yen from 118.15 yen.