Spain's struggle to drum up demand for new bonds raised not only the nation's borrowing costs but also the spectre that the euro zone's sovereign debt crisis is far from over. Equities on both sides of the Atlantic fell as a result.
Spain sold a total of 2.59 billion euros of bonds, compared with a maximum target of 3.5 billion euros, according to Bloomberg News. Yields on the five-year notes it sold rose to an average 4.32 per cent from 3.38 per cent in a sale on March 1. Investors bid for 2.46 times the amount of debt allotted, compared with a bid-to-cover ratio of 2.59 at the previous auction.
That boosted the yield on Spanish 10-year bonds as much as 26 basis points to 5.71 per cent. Italian bond yields soared too.
Meanwhile, the European Central Bank decided to keep interest rates at a record low of 1.0 per cent, while the bank's president Mario Draghi warned that "downside risks to the economic outlook prevail".
"Given the present conditions of output and unemployment, which is at historical high, any exit strategy talking for the time being is premature," he said.