Risk management
Risk Management in Trading: Position Sizing, Stops and Drawdown Limits
Risk management in trading is deciding, before you enter, how much money a trade can cost you — then sizing the position so that the stop you actually need is the loss you already accepted. In practice that means a fixed small percentage of the account per trade, a stop placed where the idea is wrong rather than where the loss feels tolerable, and hard daily and weekly loss limits that stop you trading on your worst days.
What is risk management in trading?
Risk management is the set of pre-defined rules governing how much you can lose per trade, per day and per week, and how position size is calculated from stop distance so that every loss is the same size in money terms.
How much should you risk per trade?
A commonly used ceiling among disciplined traders is a small fixed fraction of the account per position — often quoted as around 1%, and lower while learning. The exact number matters less than the fact that it is fixed: the same risk on every qualifying setup, regardless of how confident you feel.
Fixed fractional risk does two things. It makes losses statistically comparable, so your review tells you something about your process rather than about your sizing. And it makes a losing run survivable: ten consecutive losses at 1% is an uncomfortable but recoverable dent, while ten at 5% is close to terminal.
Confidence-based sizing is the most common way competent traders blow up. The trade you feel best about is not reliably the trade that works, and doubling size on it converts a normal loss into a damaging one.
Position sizing: work backwards from the stop
The sequence is always the same. Decide the money you are willing to lose, find where the stop belongs on the chart, measure that distance, and divide. Risk amount divided by stop distance gives your position size. The stop is set by structure; the size adapts to it.
Most beginners invert this — they pick a size that feels normal and then place the stop where that size makes the loss bearable. That produces stops in places the market routinely trades through, and it is why so many traders are stopped out and then proven right.
A worked example: a £10,000 account risking 1% has £100 on the line. If the stop belongs 25 points away, the size is £4 per point. If structure demands a 50-point stop, the size halves to £2 per point. The loss stays £100 either way.
Where the stop loss actually belongs
A stop marks the point where your reason for being in the trade no longer holds — beyond the level that was supposed to hold, outside the range that was supposed to contain price. If the stop is somewhere else, it is not protecting an idea, it is just a budget.
It follows that a stop should not be moved further away once the trade is live. Widening a stop is the decision to accept a larger loss than the one you agreed to, made at the worst possible moment for clear thinking.
This is also the clearest argument for mechanical execution: software places the stop you specified and does not renegotiate it under pressure.
Daily and weekly loss limits
Set a maximum daily loss — two or three normal losses is a common choice — and stop for the day when it is hit. The purpose is not arithmetic, it is to end the session before revenge trading starts, because the largest single-day losses almost always come after a run of small ones.
Add a weekly drawdown limit for the same reason at a larger scale, and a rule that cuts size after a losing sequence. Trading at reduced risk while your reads are poor is how a bad month stays a bad month instead of becoming a bad year.
Write these numbers down before the week opens, in money, not in percentages you will convert in the moment. Trading leveraged instruments carries a substantial risk of loss, and limits are the only part of that you control.
Risk-reward, win rate and what actually compounds
Win rate alone says nothing. A process winning 40% of the time with average winners twice the size of its losers is healthier than one winning 70% with winners half the size of its losers. What matters is the relationship between the two, sustained over a large enough sample.
Judge a process over dozens of trades, not over this week. Any short sequence is dominated by variance, which is why a single good week is not evidence and a single bad week is not a reason to change the rules.
We publish no return, income or performance figures, and the only performance question worth asking of yourself is whether the plan was executed as written at the size you intended.
Building risk into a repeatable routine
Risk sits alongside structure and session discipline as one of the three things we teach, and it is deliberately taught first — the methodology page sets out how the three fit into a weekly rhythm.
If you are starting out, our guide to learning to trade puts risk in the correct order relative to setups, and the session playbook defines the windows in which those risk parameters get used. Members review each other's sizing and journals in the free community.
FAQ
Frequently asked questions
How much should I risk per trade?
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A small fixed fraction of your account on every trade — commonly quoted as around 1%, and less while you are learning. The key is that it never changes with confidence.
How do you calculate position size?
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Divide the money you are willing to risk by the distance between your entry and your stop. That gives the size per point or per pip.
Where should I place my stop loss?
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At the price that proves the trade idea wrong, normally beyond the structural level you are trading from — not at an arbitrary distance chosen to suit your position size.
What is a daily loss limit?
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A pre-set maximum loss for the day, often two or three normal losses, after which you stop trading until the next session.
What is a good risk-reward ratio?
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One where average winners are meaningfully larger than average losers. The ratio only matters in combination with your win rate over a large sample.
How do you recover from a drawdown?
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Reduce size, keep the same rules, and review whether the process was followed. Increasing risk to recover faster is the most common way a drawdown becomes permanent.