[3] In 1969, the vice chairman of the Chicago Board of Trade, Edmund “Eddie” O’Connor, developed the idea for an options exchange.

[4] At that time, options on stocks were traded in a New York-based,[5] over-the-counter market which required a direct link between the buyer and seller and complex terms of sale.

[6] The options exchange that O'Connor imagined would use a central clearinghouse to facilitate trades and stand behind contracts.

[7] The options market idea faced resistance from officials at the Securities and Exchange Commission.

[8] The CBOT hired Joseph Sullivan to address regulator concerns and present the concept to the New York brokerage community.

[16] The index was developed by Robert E. Whaley, a Vanderbilt University finance professor,[17] and was intended to measure the 30-day implied volatility of S&P 100 option prices.

[18] On March 11, 2010, CBOE filed paperwork to launch an initial public offering[19] and began trading on the NASDAQ stock exchange on June 15, 2010.

[28] In January 2016, CBOE announced it had purchased a majority stake in Vest Financial, an investment adviser specializing in options-centric products.

[31] Business Insider noted that by buying BATS, "CBOE is looking to extend its geographical reach and products while cutting costs.

[35] That same year, CBOE acquired Trade Alert, a New York-based order flow analysis service provider.

Through the acquisition, Cboe established a significant presence in the Asia Pacific region for the first time by gaining access to two of the world's largest securities markets in Japan and Australia.

[42] The company operates in North America, Europe and Asia-Pacific, providing platforms for trading options, futures, equities, and foreign exchange.