Twitter's Day of Reckoning Is Here

The past few months have been even rockier than usual for Twitter and now CEO Jack Dorsey is set to have an afternoon of reckoning with investors as the company reveals its performance for 2015 and its latest user numbers.

Twitter will also break out its fourth-quarter performance in the earnings call and simultaneous Periscope live-streaming, which is set for 5 p.m. ET.

While the social media company has had several victories in the past year, including the launch of video streaming Periscope and the announcement it has suspended more than 125,000 terror-related accounts, it's also faced its share of challenges.

It's been a tough few months of headlines for Twitter, with layoffs in October, the departure of four executives last month, slumping stock prices and even a revolt from some users who protested a controversial change to the site's timeline feature with the #RIPTwitter hashtag.

Jack Dorsey, 39, one of the founders of the site, took over for the second time as chief executive last year. While the site has tremendous reach, it has lagged in attracting and retaining new users, who in turn entice businesses to advertise on Twitter and drive revenue.

"The opportunity is absolutely massive. The intention is to certainly bring it to everyone around the world," Dorsey said last summer. "If we build a product people love and value, advertisers and users will follow."

Aside from earnings and user growth, analysts will also be looking for a potential announcement from Twitter over recent speculation the company plans to name two new members to its board.

Get real-time updates as this story unfolds. To start, just "star" this story in ABC News' phone app. Download ABC News for iPhone here or ABC News for Android here.