The offering includes binary option contracts based on the Mini-S&P 500 Index (XSP), listed under the symbols XSPBW and XSPBX. The contracts are now available on Interactive Brokers and expected to roll out at Charles Schwab in the coming months, with additional retail brokerage platforms expected to offer access over time. 

Cboe PredictsSM represents the latest expansion of Cboe's S&P 500 Index (SPX) product suite. XSP allows customers to trade on the performance of the S&P 500 Index (SPX) but is scaled to 1/10th the size of SPX – making it a smaller, more retail-friendly alternative. Traders can express a view on where XSP may close by taking a "yes" position (paying $100 if the index settles at or above a specified level, or $0 otherwise) or a "no" position (paying $100 if it settles below that level, or $0 otherwise).