So far this month, Facebook's stock has fallen some 7 percent. The biggest loser is, of course, Facebook co-founder and CEO Mark Zuckerberg. The damage has cost the 28-year-old his spot on the Bloomberg Billionaire's Index of the 40 richest people in the world.
This drop won't affect Zuckerberg's day-to-day living. In fact, he just refinanced the mortgage on his $6 million home in Palo Alto, Calif., with a 30-year adjustable-rate loan starting at 1.05 percent.
The rates available to individuals with a high net worth (Zuckerberg may have lost some value, but he's … Read more