Common comparison error
A familiar Binary option name cannot replace a win, loss, refund, missing-price, and Asset or nothing option payoff table.
A fixed-outcome contract that settles according to a stated condition at expiry or during the contract period.

A familiar Binary option name cannot replace a win, loss, refund, missing-price, and Asset or nothing option payoff table.
The holder does not buy the underlying asset. The contract normally settles automatically to a predefined cash amount or zero according to one stated event. Audit the sequence from submission and server acceptance through entry reference, observation, expiry, final price, result, and cash credit.
For a 100-unit stake and 80% net payout, a successful result returns 180 units including the stake; a full-loss result loses 100 units. With no refund or fee, break-even is 55.56%. Above, below, exactly equal, void, and corrected outcomes must each have a written rule.
Do not shortlist the product unless the condition, payout basis, equality rule, expiry timestamp, settlement source, correction policy, operating entity, and account jurisdiction are documented.
Read Binary option together with Forex binary option, Asset-or-nothing option, At-expiration digital option. The comparison must preserve the exact rule, value, state, and evidence described below.
Binary option marketing is rewritten as a payoff table covering win, loss, equality, unavailable price, observation, returned stake, and distinction from Forex binary option. The evidence must resolve the defining Binary option boundary: the accepted condition creates a fixed outcome at expiry or during a defined observation window.
Use the source that governs the exact contract, account, entity, or platform state. A general definition cannot replace current broker terms.