how long does a limit order last 
the term of the limit order will depend on your specification and your broker s policy many brokers default limit orders to day only trades any unfilled orders at market close are canceled without execution other brokers may offer a specific number of days often in intervals of 30 i e 30 days 60 days or 90 days last some brokers offer limit orders that are considered good until filled the limit order will remain valid until it is filled or deliberately canceled by the trader 