Forex risk management basics
Risk management decides whether you are still trading after a bad run. These are the handful of ideas that matter most, with the maths behind each.
For information only, not financial advice. Trading carries a high risk of loss. Results depend on the values you enter and on your broker's contract specifications. Risk disclosure
What risk management is
Risk management is a small set of rules that limit how much you can lose, so that one bad trade, one bad day or one bad month cannot end your trading. It does not predict which trades win. It decides how much any single trade is allowed to cost.
1. Risk a small, fixed part of the account per trade
The most common rule is to risk 1% or less of the balance on each trade. The reason is arithmetic: small risks survive long losing streaks. After ten losses in a row, the balance is lower by about 9.6% if you risked 1% each time, 18.3% if you risked 2%, and 40.1% if you risked 5%. The first is a bad month. The last may be the end of the account.
| Risk per trade | Balance after 10 losses in a row | Loss from the peak | Gain needed to recover |
|---|---|---|---|
| 1% | 90.4% | 9.6% | 10.6% |
| 2% | 81.7% | 18.3% | 22.4% |
| 5% | 59.9% | 40.1% | 67.0% |
2. Always know where you are wrong
A stop-loss is the price at which your reason for the trade no longer holds. Decide it before you enter, from the chart, then size the position so that the loss at the stop is the amount you chose. A stop moved further away after entry is not risk management, it is hope. The position size guide shows the arithmetic.
3. Understand risk/reward and what it demands of your win rate
Risk/reward compares what you stand to lose with what you hope to gain. It also fixes the win rate you need just to break even, before costs.
| Risk : reward | Break-even win rate |
|---|---|
| 1 : 1 | 50% |
| 1 : 2 | 33.3% |
| 1 : 3 | 25% |
A lower break-even win rate is no bargain: targets that are further away are also reached less often. What matters is the combination. At a 40% win rate and 1:2 risk/reward, each trade averages 0.4 x 2 - 0.6 x 1 = +0.2 units of risk before costs. Drop the win rate to 30% and the same setup averages -0.1. Spreads and commissions take a bite from every trade, so measure them too with the trading cost calculator.
4. Set daily and weekly limits
Many traders stop for the day after a set loss, for example 2% to 3% of the account, because decisions get worse after a run of losses. Prop firm challenges make this a rule, often with a daily loss limit and a maximum loss limit. Whatever your own limit is, write it down before you start and treat it as final.
5. Do not let losses compound unchecked
Drawdown is the fall from the account's peak, and recovering from it takes a bigger gain than the loss: a 20% fall needs 25% to recover, and a 50% fall needs 100%. The drawdown guide explains the maths, and the drawdown recovery calculator works out your own case.
6. Know your chance of ruin
Given a win rate, a risk/reward and a risk per trade, the chance of losing a large part of the account can be estimated. The risk of ruin calculator does this. Treat the answer as a way to compare plans, not as a prediction, because real results are never as regular as a model.
A short checklist
- Risk per trade is a fixed percentage, written down.
- The stop is set from the chart before entry, and the size comes from the stop.
- The risk/reward and the win rate you need are known.
- A daily loss limit exists and is respected.
- Leverage is used for margin only, never to decide size.
This guide is for information only, not financial advice. Risk management limits losses but cannot make a losing approach profitable, and trading carries a high risk of loss.
Frequently asked questions
+What is risk management in forex?
It is the set of rules that limit how much you can lose on one trade, in one day and in total, so that no single outcome can end your trading.
+What is the 1% rule?
A guideline that you risk no more than 1% of your account on any one trade. On a $10,000 account that is $100 between your entry and your stop-loss.
+What win rate do I need with a 1:2 risk/reward?
About 33.3% to break even before costs. With one unit risked to win two, you only need one winner for every two losers.
+Can good risk management guarantee profits?
No. It limits losses and keeps you in the game, but it cannot make a losing approach profitable. Trading carries a high risk of loss.
+How many losing trades in a row should I plan for?
More than feels likely. Even a 50% win rate produces streaks of five or six losses over enough trades, so size your risk so that a long streak is survivable.