Actual problems of legal regulation of the "Big Data" in commodity and financial markets

Purpose: To consider the problems of using the «Big Data» by commercial organizations in the digital economy. Methodology: Comparative legal and formal legal methods were used. Results: The article analyzes the use of the «Big Data» by commercial organizations in the digital economy. The ways of using «Big Data» that limit competition are indicated. The need to adapt antimonopoly legislation to changes in economic activity is considered. The authors reviewed the drafts of legislative acts designed to ensure compliance with antimonopoly legislation. Novelty/originality/value: The article has scientific value, since it examines the current problems of legal regulation of «Big Data» in the commodity and financial markets.