CME Group Inc. is an American financial services company based in Chicago that operates financial derivatives exchanges including the Chicago Mercantile Exchange, Chicago Board of Trade, New York Mercantile Exchange, and The Commodity Exchange. The company also owns 27% of S&P Dow Jones Indices. It is the world's largest operator of financial derivatives exchanges. Its exchanges are platforms for trading in agricultural products, currencies, energy, interest rates, metals, futures contracts, options, stock indexes, and cryptocurrencies futures. In addition to its headquarters in Chicago, the company also has offices in New York, Houston, and Washington D.C., in the U.S., as well as abroad in Bangalore, Beijing, Belfast, Calgary, Hong Kong, London, Seoul, Singapore, and Tokyo. Wikipedia