Facebook CEO Mark Zuckerberg: “We had a good quarter and our business and community continue to grow” Facebook will host a conference call to discuss the results at 2 p.m. ET today. The live webcast of Facebook’s earnings conference call can be accessed at Facebook’s website, along with the earnings release, financial tables, and the presentation. Facebook’s first quarter 2019 financial highlights: Mobile advertising revenue represented approximately 93% of advertising revenue for the first quarter of 2019. Cash and cash equivalents and marketable securities were $45.24 billion at the end of the year.”]