US STOCKS-Wall St rises on M&A, Dell earns By: Reuters: Company News February 16, 2011 at 11:30 AM EST * Indexes up: Dow 0.6 pct, S&P 0.7 pct, Nasdaq 0.8 pct Read More >> Related Stocks: Banco Santander Chile ADR Deere & Co Dollar General Dollar Tree Ducommun Inc Family Dollar Stores Sanofi-Aventis S.A. ADR Standard & Poors 500