Standard and Poor's Ratings Services' rating on Pittsburgh, Pa.-based WESCO International Inc. (WESCO) and its subsidiary, WESCO Distribution Inc., reflect our expectation that the company will experience a modest improvement in operating performance through the remainder of 2010 and a more-robust recovery in 2011. In the absence of any debt-financed acquisitions and amid improving market conditions, we expect WESCO's key credit metrics to improve along with its profitability. We view WESCO's financial profile as aggressive, which more than offsets its satisfactory business risk profile as a leading distributor of electrical construction products; maintenance, repair, and operating supplies; and integrated supply and outsourcing services. WESCO is one of the largest electrical distributors in the U.S. It competes mainly in the U.S.