Why risk comes first
Beginners usually ask "how much can I make?" Experienced traders ask "how much can I lose, and can I survive it?" The second question is more useful because it is within your control. Market direction is not.
The arithmetic of losses
Losses and recoveries are not symmetrical. The deeper the loss, the larger the gain required just to get back to where you started.
| Account drawdown | Gain needed to recover |
|---|---|
| −10% | +11.1% |
| −20% | +25% |
| −30% | +42.9% |
| −50% | +100% |
| −75% | +300% |
Position sizing: the most important rule
Position size determines how much a price move affects your account. A common educational guideline is the 1% rule: risk no more than 1% of account equity on a single trade.
A worked example
- Account: $5,000. Maximum risk at 1%: $50.
- Planned entry: 100.00. Stop-loss: 98.00. Distance: 2.00 per unit.
- Position size = $50 ÷ 2.00 = 25 units.
Notice the order: the stop is placed where the trade idea is proven wrong, and size is calculated from that — not the other way round.
Stop-loss and take-profit orders
A stop-loss instructs the platform to close a position at a defined price. A take-profit closes it at a target. Both remove the need to decide under pressure.
- Standard stops may be filled at a worse price during gaps or fast markets (slippage).
- Guaranteed stops, where offered, cap that slippage, usually for a fee.
- Trailing stops move with price to lock in part of a gain.
The behaviour of stop orders differs by provider, which is one reason we study it in our guide to how trading platforms work.
Leverage and margin
Leverage lets a small margin deposit control a larger position. It does not change the market's movement; it changes the size of your exposure. If exposure falls below the platform's margin requirements, positions can be closed automatically — often at the worst moment.
Reward-to-risk and win rate
Two numbers describe a strategy's maths: how often it wins, and how large wins are relative to losses. A strategy that wins only 40% of the time can still be sound if average wins are twice average losses — and a strategy that wins 70% of the time can lose money if a few large losses outweigh many small wins. Neither number alone is enough.
Diversification and correlation
Holding several positions does not reduce risk if they all move together. EUR/USD and GBP/USD, for example, are often positively correlated. Treat correlated positions as one larger bet when sizing.
A personal risk checklist
- Maximum risk per trade (e.g. 0.5–1%).
- Maximum daily or weekly loss before stopping.
- Maximum leverage you will ever use.
- Conditions under which you will not trade at all (major news, fatigue, strong emotion).
- A review routine — weekly journal analysis.
Risk at the platform level
Risk is not only about trades; it is also about where your money sits. Regulation, segregation of client funds, withdrawal terms and the legal entity behind a platform all matter. Some traders explore platforms such as PFW Management when comparing different trading environments — our PFW Management review explains which platform-level safeguards to verify independently.
Test sizing scenarios with the educational calculator on the homepage, and read trading psychology to understand why following a risk plan is harder than writing one.
You cannot control the next trade. You can control what it costs you if you are wrong.
Educational disclaimer: This article is for general education only and is not financial, investment or trading advice. Trading involves risk, including the loss of capital. This site is not affiliated with PFW Management.
Written & reviewed by
Financial Markets Research Team
Our team studies public information, platform documentation and market data to produce independent, education-first analysis. Read our editorial policy and research methodology. Last updated 2026-11-12.