Common comparison error
Price equality alone does not imply a refund. The at-the-money settlement rule must name the result and cash treatment.
GlossaryPricing & settlement
At-the-money settlement rule
The rule defining what happens when settlement price equals the strike or barrier exactly.
Practical use
How to verify At-the-money settlement rule
Read At-the-money settlement rule together with At-the-money (ATM), Settlement price, Barrier. The comparison must preserve the exact rule, value, state, and evidence described below.
A neutral example
Entry strike and settlement price are both exactly 100.00000. One broker refunds the stake, another records a loss, and a third counts equality as success; each rule is quoted from the accepted ticket.
Evidence path
Where to verify At-the-money settlement rule
Use the source that governs the exact contract, account, entity, or platform state. A general definition cannot replace current broker terms.