For the first time, full-screen ads arrive on Twitter in the form of Fleet ads

Fleet ads will appear between Fleets from other users or brands, similar to Instagram Stories ads, and they are currently only visible to a limited group of mobile users in the U.S.

Performance metrics. Twitter’s standard ads metrics (impressions, profile visits, clicks, site visits, etc.) are also available for Fleet ads. For Fleet ads that leverage video assets, Twitter will also show the number of total views, 6s video views [advertisers are charged after their video has been viewed for 6 seconds], starts, completes, and quartile reporting.

More full-screen ad formats may be coming to Twitter. “As we experiment on this new surface for ads, we’ll take a close look at how vertical, full-screen ads perform on Twitter,” the company said in its announcement, “We want to understand how this content performs for customers not just for Fleet ads, but for future iterations of full-screen formats on Twitter.”

It’s unclear what proportion of users have adopted Fleets, and it’s not uncommon for features to come and go by the wayside. Twitter’s statement, however, expresses an investment in full-screen ad formats beyond Fleet ads.

Why we care. Fleet ads may help Twitter maintain parity with TikTok and Instagram’s ad offerings. These platforms tend to be popular among different demographics, so Fleet ads may help advertisers reach an audience that they would have a more difficult time marketing to on other social media platforms.

The company also dropped some promising stats for the new ad format: Three out of four users say they like Fleet ads, and among Fleet users, 73% say they browse what others share. There’s no word yet on when Fleet ads will be widely available, but whether or not they do, it’s clear that Twitter is experimenting with full-screen ad formats, so we should expect to see more of those in the future.