Wall Street closed the week on a down note, with major market benchmarks giving up ground on Friday to finish the month. The Dow Jones Industrial Average (DJINDICES: ^DJI) held up the best, while progressively worse performances for the S&P 500 (SNPINDEX: ^GSPC) and Nasdaq Composite (NASDAQINDEX: ^IXIC) still amounted to no more than a modest pullback overall. During much of the week, high-profile earnings reports dominated the news.