Cboe Global Markets

Cboe Global Markets, Inc. (formerly CBOE Holdings and Chicago Board Options Exchange) is an American financial exchange operator. In the U.S., it owns the largest exchange for trading in options, where it has a 30% market share, and the third-largest exchange for trading in equities (after the New York Stock Exchange and the Nasdaq), where it has a 10% market share. It operates the largest stock exchange in Europe, where it has a 25% market share. It is headquartered in Chicago, where it maintains an open outcry trading floor.

The company offers trading in options on both stock market indexes and individual stocks (52% of 2025 revenues), North American equities via its ownership of BZX, BYX, EDGX, and EDGA (35% of 2025 revenues), Europe and Asia Pacific equities (8% of 2025 revenues), futures contracts on the VIX (3% of 2025 revenues), and trading in foreign exchange markets (2% of 2025 revenues).