The CBOT writes, "binary options have two possible outcomes, and final contract settlement is either a fixed dollar amount or nothing at all. When the options expire, “in the money” options pay $1,000 to option holders, while those that are “at the money” or “out of the money” pay zero. Strike prices for the new CBOT Binary options correspond to the Target Federal Funds rate using a formula of 100-minus the actual Target rate. For example, a Target Federal Funds Rate of 5.25 percent would be reflected as 94.75. Expiring options are cash-settled and based upon the most recent Target Federal Funds Rate level established by the FOMC. The options will expire on the last day of a regularly-scheduled FOMC meeting.
Binary options on the Target Federal Funds Rate trade from 6:00 p.m. to 4:00 p.m. CT Sunday through Friday. Trading in expiring options ends at 2:00 CT on the final trading day. The Exchange has contracted with two firms to provide two sided markets for the new contract during daytime hours."
For more information, visit the CBOT's
Binary Options and also read
Anticipating Fed Action.