Cboe launches binary options on Mini-S&P 500 Index
Cboe Global Markets launched binary option contracts on the Mini-S&P 500 Index (XSP) on June 23, 2026, as the first products in its Cboe Predicts suite. The contracts, listed as XSPBW and XSPBX, allow traders to take a 'yes' or 'no' position on the index closing level with a $100 or $0 payout. Scaled at 1/10th the size of the standard S&P 500 Index (SPX), the products are currently available on Interactive Brokers and are expected to roll out at Charles Schwab soon. The contracts are centrally cleared by the Options Clearing Corporation (OCC).
*this image is generated using AI for illustrative purposes only.
Cboe Global Markets launched binary option contracts on the Mini-S&P 500 Index (XSP) on June 23, 2026, introducing the first products in its new prediction markets suite, Cboe Predicts. The contracts, listed under the symbols XSPBW and XSPBX, allow traders to take a 'yes' or 'no' position on where the index may close, with a payout of $100 or $0. This expansion follows customer demand for shorter-dated, outcome-based trading products.
The XSP contracts are scaled to 1/10th the size of the standard S&P 500 Index (SPX), offering a retail-friendly alternative. The products are currently available on Interactive Brokers, with a rollout expected at Charles Schwab in the coming months. Additional retail brokerage platforms are anticipated to offer access over time.
Product Mechanics and Access
Traders can express a view on the XSP settlement level by choosing a 'yes' position, which pays $100 if the index settles at or above a specified level, or a 'no' position, which pays $100 if it settles below that level. These securities-based products trade within the same regulatory framework as U.S.-listed options, providing institutional-grade liquidity and transparency.
| Feature | Details |
|---|---|
| Underlying Index | Mini-S&P 500 Index (XSP) |
| Contract Symbols | XSPBW, XSPBX |
| Payout Structure | $100 or $0 |
| Scale | 1/10th of SPX |
| Current Availability | Interactive Brokers |
| Future Availability | Charles Schwab |
Future Developments and Clearing
Cboe plans to enable trading of XSP vertical spreads through its proprietary Quoted Spread Book (QSB) framework in a future release. This framework aims to package options strategies into a simpler format to help newer traders build familiarity with advanced concepts within defined-risk strategies.
The contracts are centrally cleared through the Options Clearing Corporation (OCC), ensuring enhanced risk management during settlement. Cboe has also introduced educational resources, including a prediction markets resource hub and courses through The Options Institute, to support customer participation.
Will the success of Cboe Predicts prompt competitors like the CME Group to launch similar binary option products?
How will the introduction of XSP vertical spreads via the Quoted Spread Book impact trading volumes among newer retail participants?
What is the expected timeline for regulatory approval and rollout of additional prediction market contracts beyond the Mini-S&P 500?
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