Twitter posted the slowest revenue growth since it went public four years ago.
Shares fell 10 percent as investors feared that Snapchat and Facebook were winning the advertising war.
Revenue from advertising fell from a year ago and a 4.0 percent year-on-year rise in users to 319 million fell short of Wall Street forecasts as well.
There had been some amusing analysts who thought that Donald (Prince of Orange) Trumps’s obsession with Twitter would make the social notworking site great again. It didn’t – Trump’s fans relationship with the internet is somewhat limited.
The microblogging service has struggled to find a formula that will attract a new crop of users or advertisers even as rivals have ridden a wave of rising investment in internet advertising.
The lack of revenue growth has raised questions about Dorsey’s leadership and whether the company would be bought by a bigger media firm. Financial markets speculated about a sale of Twitter last year, but no concrete bids were forthcoming.
Dorsey told analysts on a conference call on Thursday that Twitter was investing in machine learning and searching for ways to engage advertisers.
“It will take time to show the results we all want to see, and we’re moving forward aggressively. The whole world is watching Twitter,” he said.
Advertising revenue in the fourth quarter declined 0.5 percent year-over-year to $638 million, and the company said that advertising revenue growth would continue to lag user growth during 2017.