American Depositary Receipt (or ADR, for short). This is a way of allowing shares of foreign companies to be traded in the USA. In this case, the use of their local stock exchanges is not required.

For ADRs to be traded on U.S. exchanges, just like U.S. shares, a financial institution (usually a U.S. bank) buys in bulk a large number of shares of a particular company and then reissues them on the stock exchange.