In 2007, Microsoft beat out major players like Google to buy a 1.6% equity stake in Facebook for $240 million. At the time, Facebook was valued at $15 billion. Five years later, Facebook's valuation has soared -- giving Microsoft a stake worth more than $1 billion.
Facebook's IPO will raise $16 billion, making it the third-largest IPO in U.S. history.
|Home Depot investigating 'massive' hack|
|Colorado's missing marijuana taxes|
|Tesla's latest battleground state: Georgia|
|Big housing crunch faces Baby Boomers|
|How celebrities' nude photos get leaked|