What a stop-loss and a take-profit actually do
Stop-loss and take-profit explained simply: they are two resting orders you attach to a trade that close it automatically when price reaches a level you choose in advance. A stop-loss sits on the losing side of your entry and exits the position once the market moves against you by a set amount, capping the loss. A take-profit sits on the winning side and closes the trade once your target is reached, banking the gain.
The point of both is to remove the in-the-moment decision. Once the orders are placed, the trade has a defined worst case and a defined best case, and neither depends on you watching the screen or making a judgement call while money is moving. For a buy (long) position, the stop-loss is below your entry and the take-profit is above it; for a sell (short) position, the stop is above and the target is below.
These are not predictions about what the market will do — no order can guarantee an outcome. They are simply instructions that fire if and when price trades at your chosen level, which is exactly what makes them the backbone of disciplined risk control.
Where to place a stop-loss: structure, not a round number
A common beginner mistake is to set a stop a fixed number of pips from entry just because it feels comfortable. A better approach is to place the stop where your trade idea is actually wrong. If you went long because price held a support level, your stop belongs just beyond that level — because if the market trades through it, the reason you entered no longer holds.
The distance from your entry to your stop is your stop distance, measured in pips. That number matters far more than where the line sits visually, because it feeds directly into how large a position you can take. A wider stop gives the trade more room to breathe but means each lot risks more money; a tighter stop risks less per lot but is easier to hit on normal market noise. The skill is matching the stop to the structure on the chart, then adjusting size around it rather than the other way round.
Be aware of two practical realities. First, in fast or thin markets your stop can fill at a worse price than the level you set — this is slippage, and it means a stop-loss limits but does not perfectly guarantee your loss. Second, leveraged forex and CFD trading carries a high risk of losing money quickly, so a stop should be on virtually every position, not an optional extra.
Setting a take-profit and a risk-reward ratio
Your take-profit defines the reward side of the trade, and it is most useful when you compare it directly to your risk. The relationship between the two is the risk-reward ratio: the distance to your take-profit divided by the distance to your stop-loss. If your stop is 20 pips away and your target is 40 pips away, you are trading at a risk-reward of 1:2 — risking 20 pips to make 40.
Why this matters: a favourable risk-reward ratio means you do not need to be right most of the time to come out ahead. As an illustrative example, at 1:2 you could lose on more than half your trades and still break even over a series, because the wins are larger than the losses. That is the whole appeal of insisting on a sensible ratio before you enter.
Place the take-profit at a level the market can realistically reach given the chart — a prior swing high or low, or a clear range boundary — rather than at whatever number produces a pretty ratio. A target that requires an unusually large move just to justify the trade is a warning sign that the setup may not be worth taking.
Tying it together: stops, targets and position size
Stops and targets only protect your account when they are linked to how much you stake. The standard method is to decide a fixed percentage of your balance to risk per trade, then work backwards. Many traders use the 1 percent rule, and you can read the full logic in our guide to risk management, which keeps any single loss small relative to the whole account.
The chain is: pick your stop distance in pips from the chart, decide the cash amount that equals your chosen risk percentage, then choose a lot size so that stop distance multiplied by pip value equals that cash amount. Doing this by hand for every trade is tedious, so our position size calculator takes your account size, risk percentage and stop distance and returns the exact number of lots to trade.
Notice the order of operations. The stop level comes from the market, the risk amount comes from your account, and the position size is whatever makes those two agree. You never widen your stop to fit a position you already wanted — you size the position to fit the stop the chart gave you. As an illustrative example, a 25-pip stop with 100 USD of risk implies a smaller position than the same 100 USD risk on a 10-pip stop, simply because each pip costs more when the stop is tighter.
Common mistakes and how to manage exits
The most damaging habit is moving a stop-loss further away as a trade goes against you, hoping price comes back. This converts a small planned loss into a large unplanned one and defeats the entire purpose of the order. Once a stop is set on a thesis, let it do its job; if you find yourself constantly widening stops, the position was probably too large to begin with.
Equally common is cutting winners short by closing or tightening the take-profit out of nervousness, which quietly destroys your risk-reward maths over time. A useful middle path is a trailing stop, which follows price at a fixed distance as the trade moves in your favour, locking in gains while leaving room to run; or moving the stop to your entry price (breakeven) once the trade is comfortably ahead, so a winner cannot turn into a loser.
Whatever you choose, record it. Logging every trade's entry, stop, target and the reason behind each in a trading journal is how you find out whether your stops are too tight, your targets too greedy, or your sizing inconsistent. Over dozens of trades the journal, not any single result, is what shows you which exit habits are actually working.