Stocks ended lower Friday in a holiday-shortened session, recording the worst weekly loss in two months as euro-zone fears continued to hurt investor sentiment. Worries about Europe's debt crisis continued to dominate the week amid a series of weak debt auctions and rising euro-zone bond yields. Stocks around the world have fallen sharply. For the week, the Dow industrials fell 4.8 percent, the Standard & Poor's 500 lost 4.7 percent, and the Nasdaq dropped more than 5 percent. There were no U.S. economic reports released Friday. The U.S. dollar gained versus the euro and the yen. Light sweet crude oil for January delivery fell 5 cents to $96.12 a barrel on the New York Mercantile Exchange. Gold futures fell $10.10 to $1,685.70 an ounce. The Dow Jones industrial average fell 25.77, or 0.2 percent, to 11,231.78. declining for the fourth consecutive session. The broader S&P 500 index fell 3.12, or 0.3 percent, to 1,158.67. The technology-heavy Nasdaq composite index fell 18.57, or 0.75 percent, to 2,441.51. Shares of online retailer Amazon.com fell 3.5 percent on the first day of the holiday shopping season.