Greek woes underpin demand for German debt

LONDON (Reuters) - A German sale of 3.44 billion euros of two-year bonds saw strong demand on Wednesday as concerns over Greece led investors to stock up on safe-haven debt, while Portuguese treasury bills benefited from ample liquidity in the financial system. Investors bidding for 2.2 times the amount of German bonds on offer despite the paper yielding just 0.17 percent on average at the auction. That was lower than the 0.29 percent yield at last month's auction. ...