https://www.siliconvalley.com/2019/07/23/tech-giants-targeted-by-doj-antitrust-review/ > The Justice Department has opened an antitrust review of tech giants, it finally confirmed Tuesday. Although the government did not name names, those “market-leading online platforms” in search, social media and retail are widely understood to be Apple, Google, Facebook and Amazon. > Shares of the companies, all based in Silicon Valley except Amazon, fell in after-hours trading.