Italian and Spanish government bonds opened lower after European leaders said they would treat Greece’s December referendum on the terms of a bailout package as a vote on the nation’s future in the currency union.
The yield on 10-year Italian securities rose 14 basis points to 6.33 percent at 7:35 a.m. London time and the rate on five-year notes increased 13 basis points to 6.14 percent.
Spanish 10-year yields rose six basis points to 5.52 percent, while the five-year note yield jumped 10 basis points to 4.86 percent.
Greek 10-year bond yields fell 32 basis points to 25.14 percent.
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