Wall Street wrapped up a strong third quarter on a weak note. Stocks finished September with a second consecutive week of losses. Prices were pulled lower by disappointing US manufacturing data and rising concerns over the euro zone's economy and sovereign-debt issues. Despite ending the quarter on a down note, the S&P 500 index nonetheless returned 2.58% in September and 6.35% over the last three months. This brought year-to-date returns on the US benchmark to 16.44%, which is a lot to be grateful for. While all major US asset classes delivered strong quarterly performance, large caps outperformed small, and value bested growth.