I might be reading the wrong, but they seem to have been losing money the first three quarters of 2015: http://www.google.com/finance?q=NYSE:LNKD&fstype=ii

They would need to make a pretty good profit the last three month of 2015 to make up for it.

Again I might just not know how to read financial statements, but adding up all the "Net incomes" gives you around $108 million in lose.

They have posted a small loss ($8mn) in the fourth quarter. But if you ignore a number of costs you can easily convert a $166 million loss into a $373 million gain. See the last table in the press release:

http://investors.linkedin.com/releasedetail.cfm?ReleaseID=95...

That depends on your definition of "losing". Ignoring stock based compensation (almost 20% of revenue if properly accounted for using GAAP) helps to get the "adjusted" net income into positive territory.

http://www.nytimes.com/2015/06/21/business/high-tech-fantasy...

I wish I could run my life while ignoring certain pesky costs!