CBOE Holdings, Inc., through its subsidiaries, operates markets for the trading of listed and exchange-traded options contracts. The company provides marketplaces for trading stocks of individual corporations; various market indexes; and other exchange-traded products, such as exchange-traded funds and exchange-traded notes. It also offers futures products through a futures market. The company has a strategic relationship with S&P Dow Jones Indices, LLC; S&P Dow Jones Indices, LLC; NASDAQ; and Frank Russell Co. CBOE Holdings, Inc. was founded in 1973 and is headquartered in Chicago, Illinois.