Risk Management in Forex: Position Sizing and Stop-Loss Strategies

1. Think of risk per trade as a percentage of account size

Most experienced investors do not risk more than %1-2 of their account balance on a single trade. This is not the lot size, but the dollar/TL equivalent of the distance to the stop-loss. The %1 risk rule in a 10.000$ account means accepting a maximum loss of 100$ on any trade — whether the stop-loss is 20 pip or 80 pip away, position size is adjusted accordingly.

The power of this approach lies in the math: even if you suffer 10 consecutive losses with the %1 rule, you lose approximately %10 of your account — a recoverable level. If you keep position size fixed and do not adjust it according to the stop-loss, a few wide-stop trades can drain the account much faster.

2. Place the stop-loss according to the market, not an arbitrary number

A common mistake is placing the stop-loss according to a fixed number like "50 pip" — whereas the correct distance varies depending on the volatility of the traded instrument and recent support/resistance levels. While a 15 pip stop makes sense on a calm major pair, the same distance could be triggered instantly within the normal noise of the market on gold or a highly volatile crypto pair.

A practical method: placing the stop slightly beyond the recent swing high/low or a distinct support/resistance area — that is, allowing the price to "breathe" during its normal course and exiting only at the point where the scenario actually becomes invalid. Once the stop distance is determined, the position size is calculated to match the risk percentage in step 1 — the sequence works in this order, not the reverse.

4. Pay attention to correlation

Opening long positions simultaneously in EUR/USD, GBP/USD, and EUR/GBP might feel like three separate independent trades — but these pairs move with a high degree of correlation. When the market turns against you, all three start losing money at the same time; your actual risk is much higher than what you calculated per single trade. Evaluating the total directional exposure (net exposure) of your open positions is as important as evaluating individual trades.

A practical checklist

• –Before opening a trade, determine the dollar/TL amount you are willing to risk (1-2% of the account).
• –Place the stop-loss according to market structure, then calculate the position size accordingly.
• –Consider total exposure before opening multiple positions simultaneously in highly correlated pairs.
• –Set a maximum loss level upon reaching which in a day or week you will stop trading.
• –No rule guarantees against losses — this is a capital preservation framework, not a guarantee of profit.