Cboe Global Markets, Inc. is an American financial exchange operator headquartered in Chicago. It owns and operates a portfolio of exchanges and trading venues across equities, options, futures, and digital assets. Founded in 1973 as the Chicago Board Options Exchange, the company also owns the stock exchange operator BATS Global Markets. Cboe is known for products such as the VIX volatility index for operating markets in North America, Europe, and Asia-Pacific. Wikipedia