LONDON -- European stock markets are attempting to end the week on a slightly positive note after weak Chinese GDP data overnight added to speculation that the country will need to implement growth stimulus measures. Gains are somewhat muted, however, after ratings agency Moody's downgraded Italian debt two notches to "Baa2," citing slow growth and contagion risk from Greece and Spain. Yet early premarket trade has U.S. markets pegged to rise, with the S&P 500 (INDEX: ^GSPC) set to open around 0.4% higher.

Even on a day when sentiment seems positive, there are, as always, a number of individual names suffering losses. Here are three American depository receipts set to underperform the S&P today.

Deutsche Bank (NYSE: DB)
German Deutsche Bank is losing ground in Frankfurt today, down more than 1% after a report by Morgan Stanley said the bank is set to face some of the highest litigation costs of the 16 banks facing potential fines surrounding the LIBOR-fixing scandal.

The report suggested that Deutsche Bank and the Royal Bank of Scotland (NYSE: RBS) are likely to suffer the worst fines, which they think could reach as high as $1.6 billion each, although they expect the fines to apply in 2013 or 2014. RBS shares are managing to shrug this news off today, however, climbing 0.6% in London.

Nokia (NYSE: NOK)
The Finnish phone maker is slumping in Europe after it announced today that it will close four regional sales offices in China as part of the restructuring plan it announced last month.

The move comes after the company said in June that it would cut as many as 10,000 jobs globally and close numerous facilities as it attempts to stem the losses it has been suffering through its falling smartphone sales.

ING Groep (NYSE: ING)
The Dutch financial is suffering some profit-taking Friday following gains made this week on news that its Asian insurance business was subject to a bid from investors led by Blackstone Group.

Reports suggested that the group would make an offer between 5 billion euros and 5 billion euros for the business, which needs to be made by the deadline of July 16. ING is down around 0.7%.

As usual, this morning's European trading saw some stocks lose ground -- and perhaps provide some European buying opportunities. Indeed, legendary investor Warren Buffett has recently spent more than $1 billion buying a European large-cap stock that's currently trading well below its 2012 high. If you want to know what Mr. Buffett has bought within Europe, this special Motley Fool report -- "The One European Share Warren Buffett Loves" -- reveals everything, including the price he paid. You can download the report today for free. But hurry -- the report is available for a limited time only.

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