https://finance.yahoo.com/news/twitter-beats-wall-street-estimates-105728100.html

Revenue growth for the remainder of 2018 will be similar to the slower rates of 2016, Twitter said. It said its tally of daily active users, a closely watched metric, grew 10 percent year-over-year, a slower pace of growth than the 12 percent to 14 percent maintained in recent quarters.

That slower user growth "has spooked investors," Wedbush Securities analyst Michael Pachter said.