I watched a talented trader blow up a $50,000 account in eleven weeks. His entries were sharp — genuinely good. His exits were disciplined. But he'd told his business partner they'd return 20% per month, and when month two came in at 3%, he started doubling position sizes to catch up. That pressure killed him. The maths of recovery is brutal: a 50% drawdown requires a 100% gain just to break even.
The problem wasn't his trading. The problem was the target. Retail traders routinely set monthly goals that even the world's best hedge funds don't consistently achieve. A professional fund generating 2–3% per month is considered exceptional. Yet beginners target 10%, 15%, even 20% monthly — and then take on catastrophic risk trying to hit those numbers.
Start with the fixed fractional method: risk a fixed percentage of account equity per trade. On a $50,000 account risking 1% per trade, maximum loss per position is $500. If your average setup risks 50 points and your stop is placed 50 points away, position size equals $500 ÷ 50 = 10 units. The formula is: Position Size = (Account Equity × Risk %) ÷ Stop Distance in Dollars. This keeps every loss manageable regardless of the streak.
The Kelly Criterion goes further, calculating optimal bet size based on your historical win rate and average win-to-loss ratio: Kelly % = W − [(1 − W) ÷ R], where W is win rate and R is reward-to-risk ratio. A strategy with 50% wins and 2:1 reward-to-risk produces Kelly % = 0.50 − (0.50 ÷ 2) = 25%. Most experienced traders use half-Kelly or quarter-Kelly to reduce variance. Pair this with drawdown limits — many professionals halt trading after a 10–15% monthly drawdown and review. Understanding compound interest makes the case clearly: 2% monthly compounded returns $80,428 from $50,000 over 24 months without ever gambling the account on a headline number.
Set your monthly target based on what your backtested strategy actually delivers — not what you need to pay the rent. The number that keeps you in the game long enough to compound is always the right number.
This content is for educational purposes only and does not constitute financial product advice. Past performance is not indicative of future results. Profit Logic Ltd (ACN 688 669 936) accepts no responsibility for errors or omissions in this content or anywhere on this website. Always seek advice from a licensed financial adviser before making investment decisions.