"Going dark" typically means that a company delists its stock from an exchange. Today, three Chinese companies
 announced plans to go dark from the New York Stock Exchange. What is 
interesting is that the companies will still be listed on the Stock 
Exchange of Hong Kong. The reason for delisting from the NYSE is that 
American regulators have warned Chinese companies that they would be 
forced to leave U.S. exchanges unless they allowed regulators to see the
 records of the company auditors.    
