Choosing whether to buy or sell is only one part of placing a trade. You also need to decide when the trade should happen and under what conditions. Market and pending orders turn those decisions into instructions that a trading platform can process.
When comparing market orders vs pending orders, the main difference is timing. A market order requests execution now at available prices. A pending order waits for specified price conditions. Neither guarantees a profitable trade, and placing a pending order does not mean that a position has already opened.
What is a market order?
A market order instructs the broker to buy or sell without waiting for a future entry level. It prioritises prompt execution, subject to the market being open, sufficient funds and the instrument’s trading rules.
In ordinary forex and CFD trading, a buy uses the Ask price and a sell uses the Bid price. The difference between them is the spread. For example, if EUR/USD shows Bid 1.0840 and Ask 1.0842, a market buy is based on the available Ask, not the lower Bid displayed on many charts.
Under market execution, the final price can change between submission and execution. This difference is called slippage and can be favourable or unfavourable. The explanation of how market execution works explores this process.
What is a pending order?
A pending order sets conditions for a possible future trade. Once accepted, it waits for the relevant price condition rather than requesting immediate execution.
For example, a trader might want to buy only after a price decline or after a move above a particular level. Different pending order types express these different intentions. The order may remain unfilled, expire or be cancelled if the planned conditions never produce an execution.
The examples below follow common forex and CFD conventions. Available order types, minimum distances and execution settings depend on the platform, instrument and broker.
The four basic pending order types
The following table shows where each entry level sits relative to the relevant current quote.
| Order type | Usual placement | Typical purpose |
|---|---|---|
| Buy Limit | Below the current Ask | Buy after a price decline |
| Sell Limit | Above the current Bid | Sell after a price rise |
| Buy Stop | Above the current Ask | Buy after an upward move reaches a trigger |
| Sell Stop | Below the current Bid | Sell after a downward move reaches a trigger |
Limit orders specify an acceptable price or better: no higher for a buy, no lower for a sell. Stop entry orders activate after price reaches a trigger and can execute beyond that level.
These definitions are covered in MetaTrader’s order documentation. Some platforms also support stop-limit orders, which place a limit order after a stop trigger is reached. The guide to MT5 order types explains those additional combinations.
One market, three different instructions
Suppose EUR/USD currently has an Ask price of 1.0842. A trader considering a new buy position could express three different plans:
- Market buy: request entry now at the available price.
- Buy Limit at 1.0820: wait for a lower buying price.
- Buy Stop at 1.0860: wait until the market rises to a higher trigger.
These are illustrative prices, not recommended entry levels. If the market rises without falling to 1.0820, the limit order may never fill. If a stop order activates and price then reverses, the resulting position can lose money. The order type controls the instruction, not the market’s next move.
Why an order may not execute as expected
A chart touching a level does not always establish that the relevant Bid or Ask reached it. Check which price the chart displays and which quote triggers the order.
Liquidity also matters: enough trading interest must be available at suitable prices to fill the requested volume. A limit price protects the acceptable execution price but does not guarantee a fill. Stop orders can experience slippage when prices move sharply or jump across levels.
Separately, an order can be rejected because its parameters are invalid or available margin is insufficient. Check the platform’s order status and history instead of assuming that submitting an instruction means it was executed.
What to check before submitting an order
Review the instrument, direction, volume, order type and entry price. For pending orders, check the expiry setting so that an old trading idea does not remain active longer than intended.
Plan the exit as well as the entry. Stop Loss and Take Profit settings serve different purposes from pending entry orders. A standard Stop Loss does not guarantee an exact maximum loss during gaps or slippage.
A demo account provides a way to practise placing, modifying and cancelling orders. Its execution results should not be assumed to match live trading exactly.
FAQs
Are pending orders safer than market orders?
Not automatically. They can help express a planned entry, but do not remove trading risk. Position size, exit planning and market conditions still matter after execution.
Can I cancel a pending order?
Usually, while it remains pending. Check that the platform confirms cancellation. If execution has already occurred, managing or closing the resulting position is a separate action.
Is a Buy Stop the same as a Stop Loss?
No. A Buy Stop can be used to enter a buy position after an upward price move. A Stop Loss is an exit instruction intended to limit losses on a position.
Does choosing a limit order guarantee entry?
No. The price condition may never be reached, or sufficient liquidity may be unavailable. The order can therefore remain unfilled even when its intended entry looked reasonable.
Which order should a beginner learn first?
Practise both on a demo account. Start by predicting what each instruction should do, then compare that expectation with the order history. Learn to verify the result before moving to more complex order combinations.