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Risk Management

Risk Management 101: The 1% Rule and Position Sizing

Professional traders survive losing streaks because they control risk on every trade. Learn the 1% rule, how to size positions and why risk/reward matters.

TBO Research Team Sep 29, 2026 1 min read
RI

The difference between traders who last and traders who blow up their accounts is rarely strategy — it is risk management. Even the best strategies have losing streaks. Your job is to make sure no streak can knock you out of the game.

The 1% rule

Never risk more than 1–2% of your account on a single trade. With a $10,000 account and 1% risk, your maximum loss per trade is $100. Even ten losses in a row would leave you with roughly $9,044 — painful, but recoverable.

Risk per tradeAccount after 10 straight losses
1%$9,044
2%$8,171
5%$5,987
10%$3,487

Position sizing step by step

  1. Decide your risk amount: account balance × risk % (e.g. $10,000 × 1% = $100).
  2. Set your stop loss based on the chart, not on money (e.g. 25 pips).
  3. Calculate the pip value you need: $100 ÷ 25 pips = $4 per pip.
  4. Convert to lots: $4 per pip on EUR/USD = 0.4 lots.

Our free position size calculator does this instantly for any pair.

Risk/reward ratio

Aim for trades where the potential reward is at least 1.5–2× the risk. With a 1:2 risk/reward ratio, you can be wrong 60% of the time and still break even. Use the Fibonacci calculator and pivot points to plan realistic targets.

Other essential rules

  • Always use a stop loss. Decide where you are wrong before you enter.
  • Avoid over-leverage. High leverage is a tool, not a target.
  • Limit daily losses. Stop trading after losing 3% in a day.
  • Keep a journal. Track every trade, emotion and mistake.
  • Mind correlation. Long EUR/USD and long GBP/USD is almost the same trade twice.

Compounding small, consistent gains is powerful — see what it can do with the compounding calculator.

#risk management#position sizing#stop loss