Risk management

01 Why most people lose

Before you learn to manage risk, you need to understand exactly what makes most beginners fail. It is almost never the analysis. It is an arithmetic mechanism you can take apart in a few minutes — and once you have seen it, you can no longer ignore it.

Let's start with the official figure, the one European brokers are legally required to display. According to the reports published by the AMF, France's financial regulator, and by ESMA, the European securities regulator, between 74% and 89% of retail accounts lose money on CFDs. That number is not a moralist's opinion: it is a statistic each broker computes on its own client base and publishes under regulatory obligation.

The usual reading of that figure is discouraging. It is also incomplete. What the statistic does not say is how those accounts lose. And there, the mechanism is remarkably consistent.

The real culprit is not where you look for it

The beginner's intuition is that losing comes from being wrong. The answer would then be to be right more often: better indicators, a better method, better timing. That intuition is false, and it is the most useful piece of news in this whole module.

One trader can be right six times out of ten and ruin their account. Another can be right four times out of ten and make money steadily. The difference is not the win rate, but the size of the wins relative to the losses, and the share of capital committed each time.

The asymmetry that dooms accounts

Here is the tipping point. Losing and winning back are not symmetrical operations. When you lose a fraction of your capital, what is left is smaller — and it is on that reduced capital that the next gain has to work. The percentage needed to get back to break-even is therefore always higher than the percentage lost.

The formula is simple, and you should be able to work it out on your own after this lesson: if you lose a proportion p of your capital, the gain g needed to get back to your starting point is g = p ÷ (1 − p).

Exact calculations: gain needed = loss ÷ (100 − loss). No market assumption is involved — this is arithmetic.

Look at the third row. A loss of half demands a doubling. And doubling capital is a performance very few professional managers achieve in a year. So the beginner who loses half of their account has to pull off, just to get back to their starting point, what a professional would consider an exceptional year.

This is exactly the moment the second mistake happens: to catch up faster, they increase their position size. Which speeds up the fall instead of correcting it.

02 The 1% rule

It is the most quoted rule in trading, and the most misunderstood. It does not say to invest 1% of your capital. It says never to accept losing more than 1% on a single position. The distinction changes everything, and it has arithmetic consequences we are going to work through.

Let's state it precisely. On a given account, you set in advance the maximum amount a position can cost you if it goes wrong. That amount is a fixed percentage of your capital, usually between 0.5% and 2%. It depends neither on your confidence in the trade, nor on what happened the day before.

On a €10,000 account, risking 1% means no position can cost more than €100. That says nothing about the amount committed: depending on how far away your stop is, those €100 of risk can correspond to a €2,000 position or a €50,000 one. We will look at that calculation in the next chapter.

Why this number and not another

The choice of 1% is not arbitrary: it follows from how well an account withstands losing streaks. A losing streak is not an accident, it is a statistical certainty. With a win rate of 50%, six losses in a row happens about once in sixty-four. Over a few hundred positions a year, it will happen several times.

So the question is not whether you will go through a losing streak, but what state your account will be in when you come out of it. That is what the following table shows.

Compounded losses: capital × (1 − risk)^number of losses. The twenty-loss column is not theoretical — it happens in the career of every active trader.

Read the 10% row. Ten losses in a row take two thirds of the account. At that stage you would have to triple what is left to get back to your starting point — we saw in the previous chapter what that means.

Now read the 1% row. The same ten losses cost less than a tenth of the capital. The account is intact, so is your ability to decide, and above all: the next twenty trades work on a base that is barely touched.

Which percentage for you

There is no universal answer, but there is a sensible progression, and it always runs from the more cautious to the less cautious — never the other way round.

03 Calculating position size

This is the central calculation of the job, and it fits on one line. Until it is automatic for you, you are not controlling your risk — you are estimating it. We are going to set it out, work it through in full on three different markets, then you will do it on your own.

The reasoning goes like this. You know how much you are willing to lose, in euros: that was the previous chapter. You know at what price you will exit if the market goes against you: that is your stop. What remains is to work out the quantity to buy so that, if the stop is hit, the loss is exactly the amount you accepted — no more, no less.

The three terms, one by one

The amount risked follows from your percentage: capital × percentage. On €10,000 at 1%, it is €100. It is not up for discussion at the moment of the trade.

The stop distance is the gap between your entry price and your exit price if the trade fails. It is expressed in pips on Forex, in points on indexes, in percent or in price units on stocks and crypto. The market dictates it — it goes where your scenario becomes wrong, never at a distance chosen to make the calculation convenient.

The value of one point depends on the instrument and the contract size. It is the only data you have to look up with your broker. On EUR/USD, a pip is worth about $10 per standard lot; on the CAC 40 as a CFD, a point is often worth €1 per contract.

The ordering mistake you must never make

Many beginners work in the wrong direction: they first pick a position size that seems reasonable to them, then place the stop where the risk looks acceptable. That is exactly the opposite of what you need to do.

The stop goes where the market puts it: below a support, beyond a low, at the exact point where your analysis would be invalidated. Position size is adjusted afterwards. If the calculation gives a ridiculously small size, it means the stop is too far away for your capital — and the correct answer is not to take the trade, not to move the stop closer.

04 The reward-to-risk ratio

Once the loss is capped, the mirror question remains: how much are you aiming for? The ratio between what you hope to gain and what you agree to lose determines the win rate you need in order to be profitable. This is where trading stops being a matter of prediction and becomes a matter of arithmetic.

We write this ratio as R, for risk/reward. A 2R trade means the target sits at twice the stop distance. If you risk €100 and aim for €200, you are at 2R.

The value of this unit is that it makes your trades comparable. A €340 gain on one position and an €85 gain on another cannot be compared directly — but +2R and +2R can. You stop thinking in euros and start thinking in multiples of your risk, and that is what makes a method measurable.

The win rate you need

This is the most liberating table in the module. For each reward-to-risk ratio, it gives the percentage of winning trades at which you break even. Below it, you lose. Above it, you win.

Formula: break-even rate = 1 ÷ (1 + R). Brokerage fees and the spread come on top: allow a few points more in practice.

Stop for a moment on the 2R row. It says that with a target at twice your stop, you can be wrong two times out of three and still break even. That is a considerable piece of information for a beginner convinced that you have to "be right often".

It also explains why cutting your gains short is so destructive. Exiting at +0.5R for psychological comfort when the plan called for +2R raises the break-even rate from 33% to 67%. The method has not changed: it has simply become a losing one.

The ratio is not everything

There is a mirror trap: systematically hunting for very high ratios. Aiming for 5R looks ideal on paper, since one win in six is enough. In practice, distant targets are rarely reached: price turns back before them, and the trade ends as a loss even though it was well in profit along the way.

The reward-to-risk ratio only means something when paired with the win rate actually observed on your method. It is the combination of the two that expectancy measures, the subject of the next chapter.

05 Expectancy

This is the only metric that really answers the question "is my method profitable?". It combines the win rate and the reward-to-risk ratio into a single number. If you were to follow just one measure of your own trading, this would be it.

Expectancy measures what each of your positions earns you on average. It says nothing about the next trade — no statistic can — but it says everything about what a long run of trades taken with the same method will produce.

Reading the result

Positive expectancy means repetition works in your favor: the more trades you take with this method, the more the result converges toward a gain. Negative expectancy means the opposite, and no amount of discipline, no risk management can correct it — the method itself is what has to change.

This is a fundamental distinction, and often misunderstood. Risk management does not make a method profitable. It keeps you in the game long enough for an already profitable method to do its work.

The question of sample size

Expectancy calculated over ten trades is worth nothing. Over thirty, it gives an indication. Over a hundred, it starts to be reliable. This requirement is not a methodological detail: it is what separates an observation from an illusion.

The reason is variance. On a small sample, luck dominates method by a wide margin. A mediocre trader can show flattering expectancy over fifteen trades, and an excellent trader can show negative expectancy over the same stretch. Only repetition separates the two.

06 The performance drawdown

The drawdown — the dip between a peak in your account balance and the low that follows — is the measure of what you will have to put up with. Every profitable method produces one. Knowing in advance how deep it will go is what will let you avoid giving up at the worst moment.

Let us define it properly. If your account rises to €12,000, falls back to €10,200, then turns up again, the drawdown is €1,800, or 15% of the peak. That percentage is more meaningful than the amount: it is what determines the effort needed to recover, as we saw in the first chapter.

The important point is this: a drawdown is not a sign that the method has stopped working. It is the normal behavior of a method whose expectancy is positive but whose results are spread out. Confusing the two leads you to change method just before it picks up again.

Losing streaks are not anomalies

Many traders experience their first run of six losses as proof that something is broken. The table below shows that it is nothing of the sort: these streaks are mathematically expected, and their frequency can be calculated.

Probability of a streak of n losses = (loss rate)^n. The last column gives the longest streak it is reasonable to expect over two hundred trades.

Look at the 40% row, which matches many solid 2R methods. Over two hundred trades in the year, a streak of ten losses in a row is expected. Not possible: expected. If your plan does not allow for that moment, it is your plan that is incomplete, not the market that is broken.

At 1% risk, those ten losses cost 9.6% of the account. That is uncomfortable and perfectly absorbable. At 5%, they cost 40% — and at that level, almost nobody keeps applying their method.

Two drawdowns to tell apart

The relative drawdown is measured from the last peak in the account: it is the one you live with day to day, and the one that tests your discipline. The absolute drawdown is measured from your starting capital: it is the one that tells you whether you are still above your initial stake.

Both deserve to be tracked. An account can be up 30% in absolute terms while going through a 15% relative drawdown — a comfortable situation financially, but a testing one psychologically, and that is where mistakes happen.

07 The stop-loss

The stop-loss is the order that automatically closes your position at a price decided in advance. It is the only mechanism that makes your maximum loss certain rather than hoped for. Everything else in this module rests on it.

Without a stop, your loss has no ceiling: it depends on your ability to decide in the moment, at the very point where that ability is most degraded. With a stop, the loss is known before you even open. The position sizing of chapter 3 makes no sense without it either — the distance to the stop is its denominator.

Where to place it

A stop goes where your scenario becomes false — not at a distance that suits the arithmetic, nor at an amount that feels bearable to you. If you buy because a support is holding, your scenario becomes false when that support gives way: the stop therefore goes just below it, with a margin for noise.

That margin is not optional. A stop placed exactly on the level will be swept away by the market's ordinary wicks. A stop placed a sensible distance below gives the level room to breathe.

Three costly mistakes

Widening a stop while the position is open. This turns a planned loss into an unplanned one. If you catch yourself doing it, the position must be closed immediately: you are no longer following a plan, you are hoping.

Placing the stop on an obvious, round level. Levels that everyone can read concentrate orders, and price often goes looking for them before turning back. Shifting it slightly is enough to avoid the sweep wick.

Giving up on the stop because you have been taken out several times. Being stopped out just before price turns back is frustrating, but it is the normal cost of insurance. Removing the stop to avoid that frustration is like cancelling the policy because you paid the premium and never had a claim.

08 Break-even and trailing stop

Once the position is open and the risk is capped, a second question comes up: what do you do when the trade moves in your favor? Two tools let you protect an unrealized gain without smothering the move. Neither of them is free, and it is that trade-off you need to understand.

Moving to break-even

Moving the stop to your entry price — what is called going break-even — cancels the risk on the position. If the market turns, you get out flat instead of losing. That is reassuring, and that is where the trap hides.

Going to break-even too early turns a trade that would have won into a flat one. Price breathes: it very often comes back to the entry zone before heading for the target. A stop moved up too quickly will be hit by that perfectly normal breathing.

None of these values is universal. The right answer comes from measuring, on your own trades, how far price typically comes back before moving on.

The trailing stop

The trailing stop moves up as price advances, locking in a growing share of the gain. It answers a real problem: you never know in advance how far a move will go, and a fixed target sometimes leaves a lot on the table.

Its cost is symmetrical: you will never exit at the high, since by design the stop is hit after a pullback. The trailing stop converts part of the theoretical maximum gain into the certainty of capturing the bulk of the move.

09 The capital protection rules

The previous chapters cap the risk of a single position. What remains is to cap the cumulative risk: that of a day, a week, a month. It is this second layer that keeps a bad session from becoming a bad year.

The problem is this. You can respect your 1% per position perfectly and still lose 8% in the day by taking eight trades in a row. Each one was within the rules; the whole was not. Cumulative limits close that gap.

They work like circuit breakers: when a threshold is reached, you stop. Not because the market has turned bad, but because experience shows that decision quality falls sharply after a run of losses.

The four caps

These values assume a risk of 1% per position. Scale them down proportionally if you risk less.

The daily limit is by far the most useful, because it intercepts the most destructive mechanism in trading: the urge to win it back within the session. After three losses in a row, the wish to "get it back before the close" is almost universal — and trades taken in that state are statistically the worst of all.

A maximum number of positions per day is worth adding to it. Many traders set a limit of three to five. Beyond that, you are generally no longer following a method: you are looking for action.

The size-reduction rule

One last protection, often missing from beginners' plans: reduce your size during bad runs. After three losses in a row, go from 1% to 0.5% until you get two wins in a row. Then go back to normal.

The effect is twofold. Arithmetically, it slows the fall at the moment it is speeding up. Psychologically, it keeps you in the game with less at stake, which restores the quality of your decisions. It is the exact opposite of the natural reflex, which pushes you to increase size to catch up faster.

10 The trading journal

Without a journal, you cannot calculate your expectancy, identify what is costing you, or prove that you are improving. It is the least spectacular tool in the course and, by a wide margin, the one that produces the most effect. Here is how to keep one that actually serves a purpose.

The journal answers a question memory cannot handle: what is it, in the way I trade, that produces my results? Memory keeps the striking trades — the big loss, the spectacular win — and forgets the forty ordinary trades that are the ones setting the average.

A well-kept journal lets you answer precise questions: are my Friday trades profitable? Do my losses come mainly from counter-trend setups? Does my win rate drop when I take more than three positions a day? None of those answers is available without data.

What to record

A journal that is too heavy never gets kept. A journal that is too light is no use. The right compromise fits in one line per trade, entered in under a minute, with these columns.

The review, without which the journal is no use

Recording is not enough: you have to read back. Set aside thirty minutes every week and one hour every month. The weekly review looks at deviations from discipline; the monthly review looks at the numbers.

In practice, a useful monthly review answers five questions: what is my expectancy for the month? Which setup worked best? Which setup is costing me money? How many times did I deviate from the plan, and why? What is the one thing I change next month?

That last question deserves to be taken seriously. Changing one thing at a time is what lets you measure its effect. Changing five parameters at once will leave you with no usable information at all.

11 The trading plan

The plan is the document that turns intentions into rules. It is written when the markets are closed and you are calm, precisely so that it can be applied when they are open and you are not. Without it, every decision gets renegotiated under pressure.

A plan is not a statement of intent. "I will be disciplined" is not a rule: it is a wish. A rule can be checked after the fact — you can say without ambiguity whether it was followed or not. That is the criterion that separates a real plan from a useless piece of text.

The test is simple: show your plan to someone who does not trade, and ask them to judge, by looking at your trades, whether you followed it. If they cannot decide, your plan is not precise enough.

The seven sections

A plan is only useful if it binds you

A plan you change mid-session serves no purpose at all. So the rule is this: the plan is only changed outside the session, in the cold light of day, and on the basis of the data in your journal — never in the heat of an open trade or a recent frustration.

That does not mean it is fixed. A plan necessarily evolves as you measure what works. But it evolves through documented decisions, one change at a time, not through successive drift.

12 The checking routine

This last chapter pulls the module together into a procedure you can apply. There is nothing impressive about it, and that is the point: it has to hold up when you are tired, rushed or frustrated. A good routine is one you follow on the bad days.

Before opening a position

Seven checks, in order. If a single one fails, the trade is not taken — and that is not up for case-by-case discussion.

During the position

There is a single rule and it fits in one sentence: you never widen a stop. You can tighten it according to the plan, you can exit partially according to the plan, you can exit entirely if the scenario is invalidated before the stop. You do not widen it.

Close the chart if you catch yourself watching it non-stop. The trade is already fully defined: entry, stop, target, management. Watching it changes nothing about the outcome, but it clearly degrades your ability to stick to the plan.

After the position

The stopping thresholds