At 08:30 in Lisbon, the 10-year bond yields rose to 3.122%, up from 3.105% on Friday.
The five-year bond yields also increased to 2.428%, from 2.420% in the previous session.
Similarly, the two-year bond yields climbed to 1.931%, compared to 1.929% on Friday.
For Spain, Greece, and Italy, two-year yields fell, while five-year and 10-year yields increased.
Germany’s 10-year bond yield, regarded as Europe’s most secure, rose to 2.693% from 2.677%.
Yields on sovereign debt in Portugal, Spain, Greece, Ireland, and Italy at 08:30:
2 years…5 years…10 years
Portugal
04/08…….1.931…2.428…..3.122
01/08…….1.929…2.420…..3.105
Spain
04/08…….2.042…2.490…..3.275
01/08…….2.045…2.487…..3.260
Greece
04/08…….2.039…2.625…..3.362
01/08…….2.045…2.623…..3.350
Ireland
04/08……1.932…2.370…..2.929
01/08……1.924…2.356…..2.906
Italy
04/08…….2.181…2.732…..3.525
01/08…….2.185…2.728…..3.511
Source: Bloomberg. Bid values (yields required by investors to purchase debt) compared with the closing of the last session.
