Common comparison error
One barrier does not reveal whether the product is touch, no-touch, knock-in, knock-out, or final-price; the accepted payoff rule must identify it.
GlossaryProducts & contracts
Single-barrier binary option
A binary payoff determined using one specified barrier level.
Practical use
How to verify Single-barrier binary option
Read Single-barrier binary option together with Call/Put binary option, Double one-touch option, Forex binary option. The comparison must preserve the exact rule, value, state, and evidence described below.
A neutral example
A single-barrier ticket names one level at 105, an inclusive touch rule, bid-price source, continuous observation from 14:00 to 14:05, and the fixed cash result after a trigger.
Evidence path
Where to verify Single-barrier binary option
Use the source that governs the exact contract, account, entity, or platform state. A general definition cannot replace current broker terms.