WhatsApp's acquisition puts its market cap in the range of Twitter and Netflix (Also around the economic output of Afghanistan). As large as these numbers are, they are still relatively small compared to Microsoft and Google, which are worth $300 billion to $400 billion.
Still, in just five years ex-Yahoo employees Brian Acton and Jan Koum have grown WhatsApp to half the value of their previous employer. Even more remarkable is how small the team behind WhatsApp is, especially when compared to its valuation:
WhatsApp's purchase price makes it worth an astonishing $500 million per employee. That's even higher than the $77 million per employee Facebook paid for Instagram.
What accounts for this high valuation? Whatsapp has a lot of monthly active users:
Facebook has 296 million monthly active users who only access the site through mobile devices. In contrast, WhatsApp has 450 million mobile users. That beats out Tencent's WeChat, which has dominated Asia. Surprisingly, Snapchat, which recently turned down Facebook's $3 billion acquisition offer, is rumored to only have 30M active monthly users.
Even if the 2.9 billion individuals on the planet with Internet access all downloaded WhatsApp and began paying instantly, it would take about seven years for Facebook to recoup its investment at $1 per user per year. WhatsApp has no plans to integrate ads into its product.
So why was Facebook chief executive Mark Zuckerberg willing to pay so much? Facebook has been trying to figure out mobile for years now, and WhatsApp is quickly becoming a giant in mobile. It could be Facebook's solution. If not, then it's a competitor removed from the field.
Second, the structure of the deal suggests that Facebook believes the team behind WhatsApp is stellar. Of the $19 billion acquisition price, $3 billion is in the form of restricted stock units that employees will receive if they stay with the company for up to four years. That suggests that the acquisition was as much about the team as the product.
Lastly, even though WhatsApp will remain ad free, there's no promise that it won't be used as a data collection source. That could be a major benefit to Facebook in the coming years.