The Spanish Treasury on Thursday raised 5.816 billion euros (7.677 billion U.S. dollars) at favorable interest rates in its first bond auction of 2013.

It exceeded the Treasury's initial target of 5 billion euros.

New two-year bonds worth 3.396 billion euros were sold at an average interest rate of 2.476 percent and a marginal interest rate of 2.587 percent.

Longer-term bonds maturing in 2018 raised 1.949 billion euros for the cash-strapped country at an average yield of 3.988 percent, lower than 4.680 percent in November 2012. The marginal interest rate fell from 4.769 percent in the previous auction to 4.033 percent, the lowest level since March 2012.

About 470 million euros' worth of bonds maturing in 2026 were sold at an average interest rate of 5.555 percent, below 6.191 percent in the previous auction. The marginal interest rate reached 5.569 percent, compared with 6.218 percent in the previous auction.

The IBEX-35 stock market in Madrid reacted positively to the auction, with the Spanish risk premium falling from 366 to 348 points.