NEW YORK ( TheStreet) -- U.S. stock futures were suggesting Wall Street would open lower Friday after Federal Reserve Chairman Ben Bernanke was non-committal in testimony Thursday about the possibilities of additional stimulus measures. U.S. stocks on Thursday finished mixed. The Dow Jones Industrial Average rose 46 points, or 0.4%, to close at 12,461. On Friday, European shares were slipping on worries over Spain's banking crisis, while Asian stocks ended the day to the downside. Japan's Nikkei 225 index fell 2.1% to close at 8,459.2. The economic calendar Friday in the U.S. includes trade balance and wholesale inventories data for April. Speaking of Spain, Reuters reported Friday the country is expected over the weekend to request European aid for its ailing banks. The move would make Spain the fourth and biggest country to seek assistance since the eurozone's debt crisis began, Reuters reported, citing EU and German sources. An attorney for Apple ( AAPL) said the iPhone maker could file for a temporary restraining order against Samsung as early as Friday to stop the launch of Samsung's new Galaxy S III phone. Samsung is scheduled to release the S III smartphone in the U.S. on June 21. Apple asked a federal court on Tuesday to temporarily ban sales of the S III. McDonald's ( MCD), the fast-food giant, is expected Friday to report sales for May. Shares of McDonald's are down 12% year to date. Deutsche Bank sees opportunity in the weakness, reiterating its buy rating Thursday and $100 price target on McDonald's. The stock fell 28% Thursday to $88.38. Chesapeake Energy ( CHK) holds its annual meeting on Friday, fresh off granting a request from activist investor Carl Icahn to give shareholders of the struggling oil and gas company four board seats. -- Written by Joseph Woelfel >To contact the writer of this article, click here: Joseph Woelfel >To submit a news tip, send an email to: email@example.com.