NEW YORK ( TheStreet) -- Stocks lost ground Wednesday as morning data failed to mitigate continued concerns about eurozone debt levels sparked after a ratings agency lowered Portugal's sovereign rating and gave the country a negative outlook. The Dow Jones Industrial Average closed lower for only the second time in the last 12 sessions, down 53 points, or 0.5%, to 10,836. The S&P 500 dropped 6 points, or 0.6%, to 1168, and the Nasdaq went lower by 16 points, or 0.7%, at 2399. Portugal was the target of eurozone debt fears, as Fitch Ratings lowered its sovereign rating to AA- from AA with a negative outlook. Overseas, Hong Kong's Hang Seng ended 0.1% higher, and Japan's Nikkei rose 0.4%. The FTSE in London was slipping 0.05%, and the DAX in Frankfurt was up by 0.1%.