Too good to be true? A company with just one employee, no assets, and no revenue saw its penny stocks rocket to a $6 billion valuation this summer—enough for the SEC to shut down its trading and launch an investigation, the Wall Street Journal reports. The company, Cynk, runs a website called Introbiz.com designed to help connect people with celebrities and various kinds of professionals. Fair enough—until its stock leaped by 25,000% since June, notes Business Insider. Worse, the company address in Belize City, Belize, is inaccurate (Cynk apologized) and the company's shares have swapped hands three times over six years, always between people who were the CEO and sole employee. More details: