Facebook stock plunge 'disappointing': Zuckerberg

SAN FRANCISCO (AFP) - Facebook founder Mark Zuckerberg said on Tuesday the plunge in the company's stock price since its public offering was "disappointing" but would not change the company's mission.

"The performance of the stock has obviously been disappointing and we care about our shareholders," Mr Zuckerberg told a San Francisco conference, but said that over time, "we're going to be making more money on mobile than we make on desktop."

Mr Zuckerberg appeared at the TechCrunch Disrupt SF 2012 conference, in his first public interview since the massive public offering on May 18 that was hotly anticipated but ended up being a flop.

Facebook shares have lost around half their value since the IPO at US$38 a share.