You don't control outcomes — only risks
No matter how good your analysis, you cannot know in advance whether a trade will be profitable. The market can do anything in the short term. What you can control is how much you lose when you're wrong — and that control is the foundation of professional trading.
Risk management is the set of rules that prevent any single loss from damaging your ability to trade tomorrow. A trader who manages risk well can be wrong 60% of the time and still make money. A trader who ignores risk can be right 70% of the time and still blow up their account.
The risk/reward ratio
Before entering any trade, professional traders define two things: where they will exit if they're wrong (stop loss), and where they expect to take profit. The ratio between these is the risk/reward ratio.
If you risk $100 (stop loss distance from entry) to make $300 (profit target), your R:R is 1:3. That means you only need to be right 25% of the time to break even — because every win pays back three losses.
| R:R Ratio | Win rate needed to break even |
|---|---|
| 1:1 | 50% |
| 1:2 | 33% |
| 1:3 | 25% |
| 1:4 | 20% |
The 1% rule
The simplest risk management rule: never risk more than 1–2% of your total trading capital on a single trade. If your account is $10,000, your maximum loss on any one trade is $100.
This sounds conservative — and it is. That's the point. With a 1% rule and a 1:2 R:R, you could lose 20 consecutive trades and still have 80% of your capital intact. You keep playing. Most beginners who blow up accounts do so because a few large losses deplete capital so severely that recovery becomes mathematically near-impossible.
Drawdown: the number that tells the truth
Drawdown is the peak-to-trough decline in your account value. Professional traders obsess over their maximum drawdown because it determines how long they can survive a cold streak.
A trader with a 10% max drawdown had a bad run but can recover normally. A trader who experienced a 70% drawdown now needs to triple their account just to get back to where they started — a near-impossible task psychologically and mathematically.
A trader risks $100 to make $300 on a trade. What is the risk/reward ratio?