We're going to turn to facebook ceo mark zuckerberg and his first comments about the stock since it went public. Zuckerberg pretty open about his Reporter: That's right. Wall street has watched... See More
We're going to turn to facebook ceo mark zuckerberg and his first comments about the stock since it went public. Zuckerberg pretty open about his Reporter: That's right. Wall street has watched something of a train wreck. Facebook was supposed to be the biggest ipo in recent history. Instead, it was the most botched, losing half of its value. The 29-year-old ceo has been silent until now. Sporting his signature t-shirt and jeans, mark zuckerberg proved he's done a lot of growing up since facebook's disastrous ipo nearly four months ago. The stock has lost roughly half its value. Just get right into it. Reporter: In a 30-minute q&a session at a tech conference, the notoriously camera-shy and awkward wunderkind, was replaced by a more mature and energetic leader. Quite a change from the kid who revolutionized the internet in his dormroom eight years ago. It's not like this is the first up-and-down that we've ever had. Reporter: As for that stock price, zuckerberg seemed to express the right amount of contrition and responsibility. The performance of the stock has obviously been disappointing. Reporter: But he was also clear to point out that his vision for the company one based solely on making a profit, something that's put him at odds with investors. The commitment that we made is that we're going to execute this mission of making the world more open and connected. Reporter: As for the future of the company, zuckerberg made it clear that his focus is on mobile phones. We already see that mobile users are more than twice as likely to use facebook six out of seven days of the week. Reporter: And search engines. Pitsi pitting facebook against google. Google's been so successful as monetizing the world information through search. Think of how successful facebook could be at monetizing the world's social information. Reporter: Analysts I've spoken to said while zuckerberg's performance did not solve all of the company's problems, it did help boost the stock more than 4% in after-hours raiding. Half an hour? Reporter: We'll be watching the stock today. Thank you very much.
This transcript has been automatically generated and may not be 100% accurate.