Here’s the picture Mark Zuckerberg used to show Facebook’s monster success by Claire Groden @FortuneMagazine July 30, 2015, 11:17 AM EDT E-mail Tweet Facebook Google Plus Linkedin Share icons Facebook reported its 2015 second quarter earnings on Wednesday, and it seems like, for Mark Zuckerberg, there’s nowhere to go but up. Facebook FB reported a 39% increase in revenue in the quarter, largely due to mobile advertising sales. (And factoring out the influence of the strong dollar, revenue would have grown 50%.) With Facebook’s increasing relevance in the mobile advertising space, it will come second only to Google in 2015 for capturing the global mobile advertising market. For the first time, the company reported quarterly revenue in excess of $4 billion as it emerges as a top mobile advertising market rivaling Google. Investors weren’t all smiles, though. Facebook expenses rose 82%, shaving profit margins down to 31%. So even though Facebook beat Wall Street earning estimates, its stocks fell after hours. Zuckerberg had previously warned shareholders that 2015 would be a big year for investment in hiring and long-term projects, like artificial intelligence, virtual reality, and expanding global internet access. Zuckerberg seemed to be most excited about Facebook’s continued expansion. He lead the earnings call on Wednesday with the global growth of the social media platform’s users. Daily active users grew 17% year-over-year to 968 million people, and mobile daily active users grew 29% to 844 million people worldwide. After the call, Zuckerberg posted a victory lap on Facebook tallying the company’s ever-widening influence: Mark Zuckerberg / Facebook We just announced our quarterly earnings and gave an update on our community’s progress. 1.49 billion people are now part of our community. In 1876, the year the first telephone call was made, around 1.49 billion people were alive. With each generation, the world is growing closer together. One day our community will connect everyone. Thank you for being a part of our mission and our community.