Dec. 1 (Bloomberg) -- Opera Software ASA, the Norwegian maker of the world’s fourth-most used Web browser, advanced to the highest in 11 weeks in Oslo trading after third-quarter earnings surged, exceeding analysts’ predictions.

The shares climbed as much as 1.9 kroner, or 11 percent, to 18.5 kroner, and were at 18.2 kroner as of 9:31 a.m. local time, the highest intraday level since Sept. 12, valuing the company at 2.2 billion kroner ($310 million).

Net income for the three months ended Sept. 31 rose to 33.3 million kroner from 4.65 million kroner a year earlier, Opera reported to the Oslo stock exchange. Analysts on average had estimated profit at 15.5 million kroner.

To contact the reporter on this story: Jakob Lindstroem in Stockholm at jlindstroem@bloomberg.net.

Last Updated: December 1, 2008 03:35 EST