Are you leaving a limit order unattended without knowing its “Expiration Time”?

I had forgotten the limit order I placed last week as is. A few days later, it was filled at an unexpected timing. There are settings that determine "how long it remains valid" for limit and stop orders.

This time, we will整理 the order validity periods.

Types of expiration

In the MT5 order screen (limit and stop orders), there is a field to select the validity period. Generally, the following options are available.

Good till canceled (GTC): remains until you cancel it yourself
For the day: expires at the end of the trading day
Specify a time: valid until the specified date and time
Specify a date: valid until the end of the specified day

The available types vary by instrument and broker settings. Some instruments can only choose "For the day."

What happens if you leave it as is

An order based on old analysis may fill after the situation has changed
Without realizing it, your position may increase
Required margin may increase, reducing your spare capacity

A hypothetical example

Suppose USD/JPY is at 150.00 and you place a Buy Limit at 149.50 with “valid until canceled.” A few days later, if the price suddenly falls to 149.50, the order will be filled at that moment regardless of the current market conditions.

How to check unfilled orders

Open the Terminal (Ctrl+T) and go to the “Trade” tab
Under Positions, unfilled orders will be displayed
If you don’t need an order, right-click and choose “Delete” to cancel it

Notes

Orders spanning weekends or New Year holidays may be filled after trading resumes
When the expiration is reached, the order is automatically canceled
There may be conditions set by the broker that cause orders to be canceled for account reasons

Habits that are easy to maintain

When placing a limit order, decide its validity period
Check unfilled orders once a week
Before placing an order, think about how many days you want it to remain valid

Summary

There are settings to decide “how long an order remains valid” for limit and stop orders. Unattended orders can lead to unexpected executions, so be mindful of the expiration and check regularly.