Twitter has 126m monetisable daily active users

"Q4 was a strong finish to 2018 with revenue up 24% year-over-year, reflecting better-thanexpected performance across most products and geographies. We delivered GAAP net
income of $255 million, net margin of 28%, adjusted EBITDA of $397 million, and adjusted
EBITDA margin of 44%.
Our focus on improving the health of the public conversation on Twitter delivered promising results in 2018, with a 16% year-over-year decrease in abuse reports from people who had an interaction with their alleged abuser on Twitter, and enforcement on reported content that was 3X more effective.
We made a number of product improvements in the fourth quarter, including making it easier to see the latest Tweets when people want to see what’s happening in the moment.
Average monetizable DAU* (mDAU) were 126 million in Q4, up 9% year-over-year, with double-digit growth in five out of our top 10 global markets."
Source:  Twitter's Q4 & Fiscal Year 2018 Letter to Shareholders, 7th February 2019