"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.