Risk Management
The set of rules that decides how much you can lose, before you think about what you can win.
Also called: managing risk · risk control
Written by Javier Sánchez Ros
In plain language
Risk management is the part of trading that is fully within your control. You cannot make a position go up, but you can decide exactly how much it costs you if it goes down.
In practice it is a small number of decisions applied consistently: a fixed risk per trade, a stop on every position, a cap on total exposure, and a limit on how much can be lost in a day, week or month.
The goal is not to avoid losses. It is to guarantee that no single loss, and no plausible streak of losses, can remove you from the game.
Worked through
Two traders take identical trades through one bad month
Both take the same eighteen trades. Both are right about the market in the same places and wrong in the same places. One risks a fixed 1% and stops trading for the day after two losses; the other sizes by feel and doubles up on the setups that look strongest.
The month is a poor one — eleven losses against seven wins. The first trader ends it down about 4% of the account, irritated, and takes the next trade the same way. The second lost 6% on one trade that felt certain, added to it, and ends the month down 31%, which means the next winning stretch has to produce 45% before any of it counts as progress.
Nothing in that outcome came from analysis. Neither trader had a better read on the market; the difference was entirely in decisions made before the trades existed, about size and about when to stop.
That is the whole of it. Risk management is a handful of limits — a fixed fraction per trade, a stop on every position, a ceiling on total open risk, a point at which the day ends — chosen while calm and applied when not. It does not improve any single trade. It decides whether you are still in the chair for the good stretch when it comes.
Why it matters
Every strategy has losing periods. Risk management is what determines whether you are still trading when the good period arrives.
Common mistakes
- Treating risk rules as guidelines that can be suspended for a great setup.
- Managing each trade in isolation while ignoring how much total risk is live at once.
- Only tightening risk after a bad stretch, rather than having the limits set in advance.
Put it to work
Keep exploring
These concepts are connected. Understanding one usually makes the next one easier.
The fixed share of your account you are willing to lose on any single trade.
The amount of an asset you buy or sell in a single trade.
The combined risk of every open position, measured as a percentage of your account.
The largest peak-to-trough decline an account or strategy has ever experienced.
A written set of rules defining what you trade, how you size it, and when you exit.