Common comparison error
Expiry cutoff shown locally can be wrong by an hour when daylight-saving, venue timezone, or Expiry step is unidentified.
GlossaryPricing & settlement
Expiry cutoff
The final moment at which a contract can be opened or modified before settlement. This can differ from the displayed expiry time.
Practical use
How to verify Expiry cutoff
Read Expiry cutoff together with Expiry time, Expiry step, Expiry-only observation. The comparison must preserve the exact rule, value, state, and evidence described below.
A neutral example
The interface calls Expiry cutoff five minutes, yet order history measures from server acceptance and shows 4:57 exposure. The Expiry time timeline controls comparison. The scenario is specific to Expiry cutoff: the last allowed submission can precede the settlement clock and shorten the usable entry window.
Evidence path
Where to verify Expiry cutoff
Use the source that governs the exact contract, account, entity, or platform state. A general definition cannot replace current broker terms.