This week marked just the latest boon for the personal fortunes of the richest of the rich, whose red-hot growth has been largely driven by surging markets, particularly for tech shares
The drubbing more than erased the $78 billion in gains that the 500 wealthiest people had amassed since the start of the year through last week, according to the Bloomberg Billionaires Index
Jeff Bezos was down almost $9 billion, but that drop is because of his divorce settlement with MacKenzie Bezos.
Even as the family avoids the limelight, its fortune has continued to grow
The 25 wealthiest dynasties on the planet control $1.4 trillion
Twenty-one members of the Bloomberg Billionaires Index lost $1 billion or more as investors reacted to stepped-up tensions between the US and China
The Robin Hood Index compares the net worth of each country's wealthiest person to his/her government's spending
Warren Buffett has pledged to give almost all of his $79 billion fortune to charity