Twitter's share price soared by nearly 10% after it reported a near doubling in its quarterly revenue.

Its latest results showed it made US$479m (€418.6m) in the last three months of 2014, up 97% year-over-year. Mobile advertising revenue made up 88% of the total.

While that beat Wall Street expectations, Twitter made net losses of US$125m (€109.2m) over the quarter.

"We closed out the year with our business advancing at a great pace. Revenue growth accelerated again for the full year, and we had record quarterly profits on an adjusted EBITDA basis," said Dick Costolo, CEO of Twitter.

"In addition, the trend thus far in Q1 leads us to believe that the absolute number of net users added in Q1 will be similar to what we saw during the first three quarters of 2014."

While average monthly active users (MAUs) were 288 million for the fourth quarter - a loss of some four million. This is due to, what Twitter says, are "changes in third party integrations".

Mobile users accounted for approximately 80%.

Timeline views reached 182 billion for the fourth quarter - an increase of 23% year-over-year.

Twitter adds that advertising revenue per thousand timeline views reached US$2.37 (€2.07) in the fourth quarter, an increase of 60% year-over-year.

The social media site has also begun testing 'Twitter Offers' in the United States - allowing advertisers to create credit card-linked promotions and share them directly with users.

And it has expended into even more places, adding 13 additional markets worldwide.