Stocks fell at open on Wednesday, a day after the Dow and S&P 500 hit five-month highs, with pressure on the euro testing the recent view that U.S. equities were decoupling from Europe.

The Dow Jones industrial average <.DJI> was down 52.14 points, or 0.42 percent, at 12,410.33. The Standard & Poor's 500 Index <.SPX> was down 5.30 points, or 0.41 percent, at 1,286.78. The Nasdaq Composite Index <.IXIC> was down 7.87 points, or 0.29 percent, at 2,694.63.

(Reporting By Angela Moon; editing by Jeffrey Benkoe)