Risk Management
Risk management is the set of rules that limits how much you can lose — through position size, stop losses, leverage limits and diversification — so that no single mistake ends your trading.
No strategy wins every trade. What keeps traders in the game is not being right but losing small when they are wrong. Risk management turns that idea into rules: how much to risk per trade, where to exit, how much leverage to allow and how much to put into any one idea.
- Category
- Risk Management
- Reading time
- 4 min
- Also called
- Money management, Trading risk control
- Updated
Risk management in plain words
Every investment carries risk — shares, bonds and funds can lose some or even all of their value.1 Risk management accepts that and limits the damage.
You cannot remove risk entirely, but strategies such as asset allocation and diversification help manage it.1 Traders add Position Sizing, stop losses and Leverage limits.
Putting everything into one position raises your risk.1 Never trade money you cannot afford to lose; in leveraged markets you can lose most or all of it very quickly.2
How to build risk rules, step by step
Set risk per trade
Choose a fixed share of the account, often 0.5–2% — see Risk per Trade.
Place a stop before entry
Decide where the idea is wrong and put the Stop Loss there.
Size the position
Position size = risk amount ÷ distance to the stop.
Cap leverage
Limit total leverage so a sharp move cannot wipe out the account.2
Limit concentration
Avoid putting too much into one asset or correlated group.1
Set loss limits
Stop trading for the day or week after a set loss — see Daily and Weekly Loss Limits.
Worked examples
Example 1 — Sizing from the stop
66 sharesAccount $20,000, risk 1%. Entry $50, stop $47.
| Risk amount | $20,000 × 1% = $200 |
| Risk per share | $50 − $47 = $3 |
| Shares | $200 ÷ $3 ≈ 66 shares |
The stop distance, not a hunch, decides the size, so a loss costs about 1% of the account.
Example 2 — A losing streak
About −4.9%You lose 5 trades in a row, risking 1% of the current balance each time, starting from $20,000.
| After 5 losses | $20,000 × 0.99⁵ ≈ $19,020 |
| Drawdown | ($20,000 − $19,020) ÷ $20,000 ≈ 4.9% |
Small risk per trade keeps a normal losing streak survivable — see Drawdown.
Example 3 — No risk rules
−20% in one tradeThe same trader puts 50% of $20,000 into one stock, which falls 40%.
| Position | $20,000 × 50% = $10,000 |
| Loss | $10,000 × 40% = $4,000 |
| Account hit | $4,000 ÷ $20,000 = 20% |
Concentrating in one position magnifies risk.1
With vs. without risk management
| Aspect | With rules | Without rules |
|---|---|---|
| Loss per trade | Planned and small | Unknown |
| Losing streak | Survivable | Can end the account |
| Leverage | Capped | Whatever is offered |
| Emotions | Less pressure | Fear and hope drive exits |
Where risk rules apply
Every trade
Size and stop are set before entry.
Leveraged products
Margin and Liquidation risk need tighter limits.
Portfolio level
Total Exposure and Correlation between positions.
Bad days
Daily loss limits prevent Tilt.
Advantages and disadvantages
Advantages
- Keeps single losses small.
- Makes losing streaks survivable.
- Reduces emotional decisions.
- Makes results measurable and repeatable.
Disadvantages
- Stops can be hit just before price turns.
- Small sizes feel slow in good periods.
- Rules take discipline to follow.
- Gaps can jump past a stop.
Going deeper
Read as far as you need. Each level builds on the one before it.
Losses are part of trading
Beginner
Every investment can lose value, so plan for losses rather than hoping to avoid them.1
Diversification and concentration
Intermediate
Asset allocation and diversification help manage both market-wide and single-company risk.1 For traders this means watching Correlation so several positions are not really one bet.
Risk of ruin
Advanced
The chance of losing most of the account rises quickly with risk per trade and leverage; leveraged markets can take most or all of your money very quickly.2 See Risk of Ruin and Expectancy.
Common mistakes
No stop loss
A single bad trade can become a disaster.
Raising size after losses
Trying to win it back increases risk at the worst time.
Ignoring correlation
Five related positions are one big position.
Using maximum leverage
Available leverage is not a recommendation.
Check your understanding
Test yourself before moving on. Each answer comes with an explanation.
Key points to remember
- Risk management limits how much you can lose.
- Set risk per trade and size from the stop distance.
- Cap leverage and avoid concentration.
- Losing streaks are normal; small risk makes them survivable.
- Never trade money you cannot afford to lose.
Frequently asked questions
How much should I risk per trade?
Is a stop loss always guaranteed?
Does diversification remove risk?
Further learning
- Position Sizing
Turning risk rules into share counts.
- Risk per Trade
Choosing how much to risk each time.
- Stop Loss
Where to exit a wrong idea.
- Risk of Ruin
How risk size affects survival.
Sources
This article is written in our own words. The sources below support the specific facts, rules and figures marked with a number in the text. Links open the original publisher’s page.
- FINRA. Risk (opens in a new tab) Checked .
- CFTC. Fraud Advisory: Foreign Currency (Forex) Fraud (opens in a new tab) Checked .
Read more elsewhere
- Trading Metrics (our sister site): Essential Risk Management (opens in a new tab)
Educational content, not financial advice. Examples use hypothetical prices and simplified costs; actual fees, margin rules and regulations vary by broker, market and country. Trading Metrics is our sister site, under the same ownership; we are not affiliated with any other publisher linked above. Last reviewed . Report an error or request a source credit.