Web search leader Google's first earnings report as a publicly held company revealed quarterly net income and revenue had more than doubled on strong Web search advertising.
Google, based in Mountain View, California, posted net income of $52 million, or 19 cents per share, in the third quarter, up from $20.4 million, or 8 cents, a year earlier.
Revenue jumped 105 per cent to $805.9 million from $393.9 million a year earlier. It was up 15 percent from the second-quarter - strong growth that some analysts said could have been fueled in part by the frenzy over its $1.67 billion IPO.
Excluding a $201 million charge related to the settlement of a patent dispute with rival Yahoo and other items, Google 's profit was $125 million, or 45 cents a share.
That compared with analysts' calls for a profit before items of 56 cents per share - within a range of 52 cents to 61 cents a share - on revenue of $751.7 million, according to figures compiled by Reuters Estimates.
The results drove Google shares 8 per cent, or more than $12, higher in extended trade after some initial confusion over how to compare the results to analysts' broadly differing estimates that were created without input from Google - which does not issue financial forecasts.
Including gains during yesterday's Nasdaq trade, Google shares gained 15 per cent on the day and have surged by almost 90 per cent from their initial public offering in mid-August.