Shares in Facebook have rocketed more than 13 per cent as US markets opened after a stellar set of earnings which showed revenue jumping by more than half.
The number of active daily users on the platform hit $1.04bn and revenue from advertising jumped 57 per cent, proving monetisation is paying off.
That took full year revenue to $17.9bn, a rise of 44 per cent year-on-year.
Read more: Facebook grows revenue by 51.7 per cent
"Facebook is able to charge higher prices for its mobile ads as its understanding of its users and hence the accuracy of its targeting is better on fixed than it is on mobile," said Edison Investment Research analyst Richard Windsor.
"Facebook is optimistic for 2016 but expects that there will be some drag from the strength of the US dollar as well as tougher comparisons to the excellent year just completed."
However, he warned that it was close to reaching full monetisation within its existing features and products.
"We are much more cautious than management on the year ahead especially for the second half," he said. "This is because Facebook is getting close to fully monetising the segments that it occupies in the digital life pie meaning that it needs to expand its coverage to keep growing."
New focuses such as Oculus and Facebook M will take some time to "come to fruition" he added.