Chinese billionaire lost $3.1 billion in less than 90 mins
The billionaire Chairman of a Chinese dairy company, Yang Kai, lost $3.1 billion in less than 90 minutes when his company's stock fell recently. The value of Yangâs stake in the company fell to $530 million from $3.6 billion. While the reason for the fall in stock is unclear, his company's disclosures from lenders show heavy reliance on debt. 