Mars Finance news, on December 19, according to official news, Japan's Bitcoin financial institution Metaplanet's American Depositary Receipt (ADR) will begin trading in the United States on December 19, with the stock code MPJPY. American Depositary Receipts are a type of financial instrument issued by American banks, representing shares of foreign companies (such as Japanese or European companies). Investors can buy and sell these foreign stocks on the U.S. stock market through ADRs without directly trading on foreign trading platforms.