Cboe Global Markets announces it is bringing back S&P 500 binary options, offering yes/no contracts after more than a decade-long hiatus. The exchange says the product is designed for use by market participants seeking market-priced outcomes tied to equity index performance. The relaunch comes as prediction and event-betting platforms such as Kalshi and Polymarket have grown by offering similar binary-style contracts to users. Cboe previously offered the S&P 500 binary options before stopping the product more than 10 years ago, according to coverage of the announcement. With the revival, Cboe moves into a segment that has become closely associated with internet-based marketplaces, where users trade on whether a defined condition is met. The announcement positions Cboe’s move as competitive with those platforms, while providing a conventional U.S. derivatives venue for instruments resembling the binary format. Bloomberg and CoinDesk both report the same core action—Cboe’s return of the S&P 500 yes/no contract and the competitive context created by Kalshi and Polymarket—without providing new details on pricing, market rules, or volumes beyond the product’s planned reinstatement.