Definition
A pending order is an accepted instruction that has not fully executed, expired, been rejected, or been cancelled and may still reserve resources.
In market context
Limit and stop-based instructions can remain pending while waiting for price conditions and available liquidity. Triggering does not guarantee a fill, because the resulting order still faces price, quantity, priority, market-hours, and account-risk constraints. Users should monitor duration, partial fills, reserved cash or margin, and cancellation status rather than assuming an unattended order no longer affects the account in real time.
Source
Use the primary source for fuller regulatory or market context.
