RT @business: Mark Zuckerberg is the biggest mover on our Billionaires Index. He lost $4.92 billion today https://t.co/mLjmmld7wH https://t…

RT @business: Mark Zuckerberg is the biggest mover on our Billionaires Index. He lost $4.92 billion today https://t.co/mLjmmld7wH https://t…