Of the 131 companies that have reported earnings, more than 25 percent missed Wall Street's targets -- more than twice the level at the same time last year, according to Reuters Estimates. <A HREF="http://news.yahoo.com/s/nm/20071022/bs_nm/markets_stocks_dc_1;_ylt=AkVixZspdqsXYCsH2.mtdG0E1vAI" target="_blank">http://news.yahoo.com/s/nm/20071022/bs_nm/markets_stocks_dc_1;_ylt=AkVixZspdqsXYCsH2.mtdG0E1vAI</A>