Security Exchange. CME STP defined supported values include: - BTEU - BrokerTec EU. - BTUS - BrokerTec US. - CBT - Chicago Board of Trade. - CEE - Stock Exchange Group. - CME - Chicago Mercantile Exchange. - COMEX - Commodities Exchange, Inc. - DME - Gulf Mercantile Exchange. - EBS - EBS Market. - FXS - FX Spot. - IFUS - Intercontinental Exchange. - NGXC - Natural Gas Exchange. - NODX - Nodal. - NYMEX - New York Mercantile Exchange. - NYMSW - CME Swaps - NYMEX. - VMAC - VMAC. - XNAS - Nasdaq. - XXXX - OTC Trades.

public string SecurityExchange { get; set; }