Riskier assets were underpinned by global central bank action and European shares were set to open higher - taking the shine off Bunds - after China's central bank became the latest to take additional stimulus measures to support growth .
Euro zone ministers said Spain was taking steps to overhaul its economy and was funding itself successfully in financial markets, dashing hopes for a speedy resolution to the debt problems of the euro zone's fourth largest economy.
Nonetheless, investors expect that Madrid will ultimately have little choice but to ask for aid.
"At 10-year yields comfortably below 6 percent, the Spanish government remains loath to compromise on conditions, hoping that a rating affirmation by Moody's this month will buy more time," Commerzbank strategists said in a note.
German Bund futures were 21 ticks lower at 141.18.
The Netherlands will kick off the week's issuance, selling up to 2.5 billion euros of 5-year bonds.