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Risk per trade: the 1–2% rule and position sizing

Beginner⏱ 9 min readUpdated 31 Oct 2026
In this lesson you'll learn
  • Why the size of each trade matters more than your win rate
  • The 1–2% rule, and how to turn it into a lot size
  • How the same rule protects you in a losing streak

Most accounts don't die from bad trades

They die from big trades. A trader can be right 6 times out of 10 and still empty an account, because one oversized loss wipes out ten good days. The fix isn't a better entry: it's deciding how much you can lose before you open the trade.

The professional habit is simple: risk a small, fixed share of your account on each trade, usually 1% to 2%. Your stop loss decides where you're wrong; your lot size decides how much that costs.

Why 1–2%? Look at a losing streak

Every strategy has losing streaks. Here's what 10 losses in a row do to a $10,000 account:

$10k$7.5k$5k$2.5k02468101%2%5%10%
Risk per tradeAfter 10 lossesGain needed to get back
1%$9,044+10.6%
2%$8,171+22.4%
5%$5,987+67.0%
10%$3,487+186.8%

At 1–2% a bad run is an annoyance. At 10% it's the end of the account, and the maths of getting back is brutal.

From "2%" to a lot size, step by step

Three numbers decide your lot size: your account balance, the % you'll risk, and the distance to your stop loss in pips.

Lot size = (balance × risk %) ÷ (stop loss in pips × pip value per lot)

Example: $5,000 account, 2% risk = $100. EURUSD stop 25 pips away, pip value $10 per standard lot → 100 ÷ (25 × 10) = 0.40 lots.

Try it

⚖️ Lot size calculator
Money at risk
Lot size
If this trade loses
Common mistakes
  • Picking the lot size first and placing the stop wherever it "fits" the money.
  • Moving the stop further away during the trade, which quietly turns 2% into 5%.
  • Opening three trades on correlated pairs (EURUSD, GBPUSD, XAUUSD all against the dollar): that's one 6% bet, not three 2% bets.

How this works when you copy trades

When you copy a provider, their lot size was set for their account. On Goldman Copier, the Risk percent sizing rule applies this lesson automatically: each copied trade risks the % you choose of your equity, using the trade's stop loss.

Check yourself

1. You have $2,000 and risk 1% per trade. How much can one losing trade cost?
2. Your stop is 40 pips away on EURUSD and you'll risk $80. What lot size?
3. You open EURUSD, GBPUSD and XAUUSD buys at 2% each, all against the dollar. What is your real risk?

Key takeaways
  • Decide the money at risk before the trade: 1–2% of the account.
  • The stop loss sets where you're wrong; the lot size sets how much it costs.
  • Small risk keeps losing streaks survivable, and survival comes first.
Education, not advice. Goldman Academy teaches how markets and tools work. Nothing here is a recommendation to buy or sell, and no lesson promises profits. Trading leveraged products carries a high risk of losing money; only trade money you can afford to lose. · Written by Goldman Academy, reviewed by Faisal