Before you worry about strategy, you need to know exactly what happens when you press the button. An order type is an instruction to your broker about how and at what price a trade should be entered or exited. Choosing the wrong one is a surprisingly common source of avoidable losses, especially around news releases. This guide covers the core types, what each is for, and where each can disappoint you. All price examples are illustrative.
Market orders
A market order says: fill me now at the best available price. Its strength is certainty of execution; its weakness is no certainty of price. In a calm London session on a major pair, the difference between the price you saw and the price you got is usually a fraction of a pip. During a data release or a thin rollover window, spreads widen and the fill can be several pips away from what was on screen. That gap is called slippage, and it is part of the real cost of trading alongside the spread.
Use a market order when getting in or out matters more than the last pip of price, for example when closing a position you no longer want to hold. Be cautious using it in the seconds around a major release.
Limit orders
A limit order says: fill me only at this price or better. A buy limit sits below the current market; a sell limit sits above it. You are asking to buy cheaper or sell higher than the current quote. The benefit is price control. The cost is that the market may touch near your level, turn around, and never fill you, or may fill you just before a trend continues straight through your level.
Limit orders are the natural tool for traders who define a level in advance, such as a pullback to a prior area of support (see support and resistance as zones, not lines). Because the level is a zone, many traders accept that a limit might miss by a pip or two.
Stop orders (entry stops)
A buy stop sits above the market and a sell stop sits below it. Once price trades through the level, the order becomes a market order. Entry stops are used for breakout approaches: you want to be in only if price proves it can move through a level. Because they convert to market orders, they carry slippage risk precisely when the market is moving fast, which is exactly when stops tend to trigger.
Stop-loss orders
A stop-loss is a protective exit placed beyond the point where your trade idea is wrong. It is the single most important order type for survival. Remember three practical points:
- A stop-loss is normally a stop order, so it becomes a market order when touched. In a gap or fast spike you can be filled worse than your stop price.
- Place it where the idea is invalidated, then size the position to fit that distance, not the other way round. See position sizing and risk per trade.
- Volatility matters. A stop that is tighter than normal noise will be hit often. Measures such as average true range give a sober reference for what normal movement looks like.
Take-profit orders
A take-profit is a limit order to close a winning position at a target. It removes the need to watch the screen and prevents hesitation, but it also caps the upside on that portion of the trade. Some traders use a fixed target; others scale out, closing part of the position at one level and leaving the rest to run.
Stop-limit orders
A stop-limit combines both ideas: once the stop price is touched, a limit order is placed rather than a market order. This protects you from a bad fill, but introduces a different danger: if price blows through your limit, you may not be filled at all. If this is your protective exit, that can leave you holding a losing position with no exit. Many retail FX platforms do not offer stop-limit orders, and that is acceptable; for protective exits, the more reliable fill of a plain stop is usually preferred.
Trailing stops
A trailing stop follows price at a fixed distance as the trade moves in your favour, and stays put when price retraces. It can lock in open profit mechanically. Be aware of two details. First, on many platforms a trailing stop only operates while the platform is running on your device, so closing the application may leave you with the last server-side stop only. Check how your broker implements it. Second, a trailing distance that is too tight in volatile conditions will take you out of healthy trends early.
One-cancels-the-other (OCO) and bracket orders
An OCO pairs two orders so that when one fills, the other cancels. A common use is placing a take-profit and a stop-loss around a position: whichever is touched first closes the trade and removes the other. Bracket orders extend this by attaching the pair automatically to an entry. They make it easier to keep your plan on the platform rather than in your head.
Good till cancelled versus day orders
Pending orders have a duration. A day order expires at the end of the broker's trading day; a good-till-cancelled (GTC) order stays until filled or removed. GTC orders are convenient, but they can be forgotten. A limit order left behind from last week can fill into a market that has changed, long after the original idea expired. Review open orders as part of your routine, and record them in your trading journal.
Spread, slippage and the order you choose
FX quotes have two sides: the bid and the ask. Buy orders fill at the ask and sell orders at the bid. This matters for stops: a long position's stop-loss triggers on the bid, while a short position's stop triggers on the ask. When spreads widen around rollover or news, a stop can be triggered even though the chart you are looking at (usually bid-based) never appeared to touch it. Knowing this removes a lot of mystery about "stop hunts".
A simple pre-trade checklist
- Which order type enters the trade, and what happens if price gaps over it?
- Where is the protective stop, and is it a plain stop order?
- Is there a target, and is the reward large enough to justify the risk?
- How long should pending orders live?
- Is a major release or the session rollover near? If so, would I still place this order?
Practise on a demo first
Every platform words and behaves slightly differently. Spend an afternoon on a demo account placing each order type, modifying it, and watching how it fills. Also understand how your account margin behaves when pending orders trigger; see lots, leverage and margin explained. Order mechanics are boring until they cost you money, and then they are the only thing that matters.
This article is educational and not investment advice. Leveraged FX trading carries a high risk of loss. All numerical examples are illustrative.