Common comparison error
Expiry-only observation does not monitor the full path; a temporary touch before the final evaluation is irrelevant unless another rule says otherwise.
GlossaryPricing & settlement
Expiry-only observation
The contract checks its condition once at the stated settlement time rather than monitoring the full price path.
Practical use
How to verify Expiry-only observation
Read Expiry-only observation together with Continuous barrier monitoring, Observation window, End-of-day expiry. The comparison must preserve the exact rule, value, state, and evidence described below.
A neutral example
Price crosses above the strike twice during a five-minute contract but finishes below it at 14:05:00. Under expiry-only observation, those earlier crossings do not determine settlement.
Evidence path
Where to verify Expiry-only observation
Use the source that governs the exact contract, account, entity, or platform state. A general definition cannot replace current broker terms.