CME Group Inc. is an American financial services company based in Chicago, Illinois. It operates financial derivatives exchanges, including the Chicago Mercantile Exchange, the Chicago Board of Trade, the New York Mercantile Exchange, and the Commodity Exchange. The company 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. Headquartered in Chicago, the company maintains offices in New York, Houston, and Washington D.C., in the United States, as well as abroad in Bangalore, Beijing, Belfast, Calgary, Hong Kong, London, Seoul, Singapore, and Tokyo. Wikipedia