리스크와 매매 시스템Risk8 분 분량초보자용

The 2% Rule, and the Second Rule Nobody Copies

핵심 요점

The 2% rule caps one trade. On its own it permits an unlimited losing streak — twenty disciplined trades in a row is still a third of the account.
The 6% rule caps one month. When cumulative losses hit it, you stop trading until the month ends, whatever the next setup looks like.
Method is the part beginners shop for. Mind and Money are the two that fail first, and neither can be bought.

학습 경로Risk first: decide what you can lose before you think about winning7단계 중 2단계

이 글보다 먼저:Cutting Losses and Sizing Positions: The Math Beginners Skip

참고 도서 The New Trading for a Living — Alexander Elder, 2014

Three parts, and only one of them is fun

A trading edge is one third of the job. The other two thirds decide whether you ever collect on it.

Elder's framing. A beginner spends almost all of their attention on the middle layer and assumes the other two will follow. They do not follow.

Alexander Elder was a psychiatrist before he wrote about markets, which shows in the ordering. Method — the actual entry and exit logic — sits in the middle, sandwiched between the discipline to run it and the sizing that determines whether a run of losses ends the experiment.

The useful test is to ask which layer your last bad outcome came from. Most people answer 'Method' — a signal that failed. Most of the time the honest answer is Mind (the rule was overridden) or Money (the position was too large for the rule to matter).

The 2% rule: what a single trade may cost

No single position may lose more than 2% of the account. Not 2% of the position — 2% of everything.

Elder calls a loss inside this limit a shark bite: painful, survivable, and over. The rule exists to keep every loss in that category rather than the one that ends the account.

Two per cent is a ceiling, not a target — most professionals run well below it. What makes it a rule rather than a preference is that it converts into an exact share count once you know your stop distance, leaving nothing to decide in the moment.

The same rule at three account sizes. A small account does not get a larger percentage to make progress faster; it gets fewer shares, and that is the entire adjustment.

The 6% rule: what a month may cost

This is the half of the system that almost nobody quotes, and it is the half that stops a bad streak.

Here is the hole in the 2% rule taken alone. Nothing in it prevents you from taking that 2% loss twenty times in a row. Each trade obeys the rule perfectly, you have broken no discipline, and the account is down by a third.

Losses accumulate against a monthly ceiling. At −6% for the month, trading stops until the calendar turns — including on setups that look excellent.

The rule is doing something the per-trade cap structurally cannot: recognising that a losing streak is information. Either conditions have changed or you are trading badly, and both are best answered by being out of the market rather than by taking the next signal.

What a losing streak feels like

A reason to trade back to even
Bad luck that is about to turn
A signal to size up on the best setup

What the rule does instead

Ends the month at a known, capped loss
Removes the decision while judgement is worst
Makes a recovery arithmetically easy

Why two limits beat one

A single limit can only be set at one level of aggregation. The per-trade cap protects you from one catastrophic idea; the monthly cap protects you from yourself over a run of ordinary ones. They fail in different ways, so you need both.

There is also a recovery argument. A 6% monthly loss needs about 6.4% to get back — trivial. A 35% loss needs 54%, which changes what the following year has to look like. Capping the month keeps every drawdown inside the range where normal returns can undo it, which is the same asymmetry behind cutting losses early.

The enforcement problem is real: nothing stops you from opening the platform on day twelve. This is why the rules belong in a written plan with the month's running total on it, rather than in your head — see your first trading plan.

이번 주에 해볼 것

Work out 2% and 6% of your account in cash, and write both numbers where you place orders.
Add up this month's realised losses. How close are you to the second number?
Take your next planned trade and compute the share count from the stop distance and the 2% figure.
Decide now what you will do with the rest of a month that hits −6%. Write it down before it happens.

자주 묻는 질문

What is the 2% rule in trading?

It caps the loss on any single trade at two percent of total account equity. Combined with a stop distance, it fixes the position size arithmetically rather than leaving it to judgement.

What is the 6% rule?

It caps total losses in a calendar month at six percent of the account. Once open and realised losses reach that level you stop opening new positions until the next month, regardless of how good a setup appears.

Why isn't the 2% rule enough on its own?

Because it says nothing about frequency. Ten consecutive losses each obeying the rule still costs roughly a fifth of the account, with no discipline breached, which is exactly what the monthly cap exists to interrupt.

Is 2% too much risk per trade for a beginner?

For most beginners, yes — it is a ceiling rather than a recommendation. Starting at half a percent to one percent leaves room to be wrong many times while a method and a record are still being built.

What are Elder's three Ms?

Mind, Method and Money: the discipline to follow a plan, the plan's actual entry and exit logic, and the position sizing behind it. His argument is that failure usually comes from the first or third, while attention goes almost entirely to the second.