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Position sizing: meaning in forex and gold trading

Position sizing is choosing the trade size so that a stop loss hit costs a fixed, planned share of your account.

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Definition

Position sizing: Position sizing is choosing the trade size so that a stop loss hit costs a fixed, planned share of your account.

The formula

Position size in lots = (account × risk %) ÷ (stop distance in pips × pip value per lot). It ties every trade to the same risk, so a tight stop gets a bigger position and a wide stop a smaller one. Many traders risk between 0.5% and 2% per trade.

Why it matters most

Entries and indicators get most of the attention, but sizing decides whether a losing streak is a setback or the end of the account. Fixed fractional sizing also shrinks positions automatically during a drawdown.

Worked example

£4,000 account, 1% risk = £40. USD/CAD stop of 32 pips. One lot of USD/CAD is about 7.14 dollars per pip at 1.40, or about £5.33 at GBP/USD 1.34. 32 × £5.33 = £170.56 per lot, so the size is £40 ÷ £170.56 = 0.23 lots.

Common mistakes

  • Using a fixed lot size for every trade.
  • Raising risk after a loss to win it back.

If you follow trade signals, for example the gold signals or EUR/USD signals, understanding this term helps you size and manage each trade yourself. The free Forexuro Telegram channel shares daily market updates where these ideas are used in practice.

Lot

A lot is a standard trade size: a standard lot is 100,000 units of the base currency, a mini lot 10,000 and a ...

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Pip value

Pip value is the money one pip is worth for a given position size, in the quote currency or converted to your ...

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Stop loss

A stop loss is an order that closes a trade at a set price to cap the loss if the market moves against you.

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Risk of ruin

Risk of ruin is the probability that a run of losses will shrink an account to a level where you cannot contin...

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Drawdown

Drawdown is the fall in account value from a peak to a later low, usually shown as a percentage.

Read more

Tools and guides

Frequently asked questions

How much should I risk per trade?

Many traders keep it between 0.5% and 2%. Lower risk means smaller drawdowns.

Does position sizing work for gold?

Yes, using gold's pip value and contract size. See the gold position size calculator.

Education only, not financial advice. Trading forex, gold and CFDs carries a high risk of losing money, and leverage magnifies both gains and losses. Past performance is not a reliable guide to future results. Read our risk disclosure.