Beware of ‘zombie’ companies running rampant in the stock market By: MarketWatch November 24, 2020 at 12:48 PM EST A total of 19%, or 571 companies, in the Russell 3000 Index are considered unviable, writes William Barritt. Read More >> Related Stocks: ADT Inc Adobe Systems Amazon.com Amc Entertainment Holdings Inc Community Health Systems Costco Wholesale Hasbro Mattel Moderna Inc Roku Inc Salesforce Servicenow Inc Tesla, Inc. Thermo Fisher Scientific Transocean Ltd Visa Wayfair Inc Zoetis