On September 1, Amazon.com fell 3.05% in regular trading, trading at $258.39/share, with turnover of $5.193 billion, hitting an intraday low. The decline was triggered by news that the U.S. Federal Trade Commission (FTC), in coordination with more than 20 states, is filing an antitrust lawsuit against Amazon.

According to reports, the FTC plans to formally file the suit on Monday, accusing Amazon of manipulating advertising prices on its retail platform to illegally extract billions of dollars in profits. The lawsuit targets Amazon's core ad bidding system. If the allegations are upheld, Amazon could face not only substantial financial penalties but may also be compelled to overhaul its advertising auction mechanism, potentially delivering a significant structural impact on its revenue composition.

This is not the first time Amazon has faced antitrust scrutiny. The company had not issued a formal response as of the time of the filing. Within the Broadline Retail sector, the broader group traded lower, with Alibaba down 3.63%, Sea Ltd down 4.42%, PDD Holdings down 1.80%, eBay down 1.69%, and MercadoLibre down 0.81%.

(The above content is based on publicly available market information, generated by a program or algorithm, and is intended solely as a stock movement alert. It does not constitute investment advice or a basis for trading decisions.)