LinkedIn reports quarterly loss

LinkedIn Corp forecast first-quarter revenue and profit below Wall Street estimates as growth slows in its ads business and its hiring services face pressure outside North America, dragging its shares down 28 percent after the bell.
The operator of the world's largest online network for professionals reported its slowest growth in quarterly online ad revenue in more than two years.
Online ad revenue growth slowed to 20 percent in the fourth quarter from 56 percent a year earlier as automated ads offered by Alphabet Inc's Google make its traditional ad displays less attractive to advertisers.