Yubico's stock surged 34.3 percent after the cybersecurity company reported interim results this morning.
On the OMXS30 large-cap list, telecom operators Tele2 and Telia were at the top of the list with gains of 2.5 and 2.1 percent respectively. Major bank SEB also rose 1.0 percent.
At the other end, engineering company Sandvik fell the most, 1.8 percent, while measurement technology company Hexagon lost 1.6 percent and pharmaceutical company AstraZeneca 1.5 percent.
A barrel of North Sea oil costs just over $81.
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