Twitter shares sank 11% in post-market trading on Wall Street last night as it offered tepid revenue guidance for the second quarter.
The company warned of rising costs and expenses and said user growth could slow as the boost seen during the coronavirus pandemic fizzles.
The social media company posted revenues and user numbers mostly in line with analyst estimates in stark contrast to the better performing digital ad firms like Facebook and Alphabet.
It said it expected second quarter revenue between $980m and $1.08 billion, lower than Wall Street estimates of $1.06 billion on average, according to IBES data from Refinitiv.
Twitter said it wants to reset after years of product stagnation, announcing in February bold goals to expand its user base, speed up new features for users, and double its revenue by 2023.
Ad revenue for the first quarter came to $899m, up 32% from the same period a year ago and beating analyst estimates of $890m.
Total revenue for the quarter was $1.04 billion, up 28% year-over-year and slightly higher than estimates of $1.03 billion.
Google and Facebook, the top two largest digital advertising platforms, both blew past revenue expectations in their first quarters. Advertisers consider both to have more ad formats and better ad targeting capabilities than Twitter.
Twitter reported 199 million daily active users, up 20% year-over-year, compared to analysts' estimates of 200 million, according to FactSet data.
The San Francisco-based company repeated its warning that growth of its monetizable daily active users (mDAU) - its term for daily users who can view ads - could reach "low double digits" in the next quarters, likely hitting a low point in the second quarter.
Twitter's CFO Ned Segal said it wanted to retain the users it added during the Covid-19 pandemic, so that "as economies open up, as the events that they've been watching from their sofas are now available in person...they continue to come to Twitter."
The company said in a letter to shareholders it was too early to understand the full impact of Apple'ss privacy policy change which began rolling out on Monday, but said its integration with a new ad measurement tool from Apple has increased the number of iOS devices it can target certain types of ads to by 30%.
Twitter pledged in February a goal to double its annual revenue to $7.5 billion in 2023 from $3.7 billion in 2020.
Responding to criticism that was summed up by CEO Jack Dorsey this year as "we're slow, we're not innovative, and we're not trusted," the company has recently snapped up newsletter platform Revue and podcast company Breaker and teased a litany of new products.
The company is also testing a live audio feature "Spaces" to compete with Clubhouse.
It is also working on ways for users to find topics of interest and has teased new ways for creators to make money on the site, from tipping to "super follows" where fans can pay for exclusive content.
Twitter, which banned former US president Donald Trump following the Capitol riot, remains in the spotlight over its content policies and algorithmic systems.
Both Dorsey and Twitter's head of US public policy appeared in front of Congress in recent weeks as lawmakers mull changes to social media platforms' liability protections.
Twitter said it expected total revenue to grow faster than expenses this year, assuming that the coronavirus is less of a factor and that it sees "modest impact" from Apple's changes.
But it said in its outlook that stock-based compensation expenses for this year will amount to $600m, up from its previous guidance of between $525-575m, as the company ramps up hiring. It forecast capital expenditures to be $900-950m for the full year.
Twitter said it expects headcount, as well as total costs and expenses, to increase at least 25% in 2021 on a year-over-year basis.
