Updated from 3:29 p.m. EDTStocks on Wall Street finished another day of teeth-grinding volatility with losses Friday, as forced liquidations continued and fear of a global economic slowdown intensified. The Dow Jones Industrial Average, off more than 500 points earlier, finished down 312.30 points, or 3.6%, at 8378.95, and the S&P 500 gave back 31.34 points, or 3.5%, to 876.77. The Nasdaq tumbled 51.88 points, or 3.2%, to 1552.03. Taken all together, the past five sessions have not been pretty. For the week, the Dow lost 5.4%, the S&P 500 slipped 6.8% and the Nasdaq dropped 9.3%. The selling mood was tied to belief in an impending global recession. Larry Adam, chief investment strategist at Deutsche Bank Private Wealth Management, wrote in a research note that he expects 2009 global growth to register at 1.2%, a rate that falls well below the International Monetary Fund's recession benchmark of 3%. He predicted negative growth for the U.S. and Europe in the coming year. "