US STOCKS-Dow, S&P fall on debt worries; semis lift Nasdaq By: Reuters: Company News November 22, 2010 at 10:32 AM EST * Dow off 0.5 pct, S&P off 0.4 pct, Nasdaq up 0.3 pct Read More >> Related Stocks: Atlantic Industrial Minerals Hewlett-Packard SanDisk Corp Standard & Poors 500 Tyson Foods