How do I calculate position size?
Quick Answer
Position size = (Account Risk %) × Account Balance ÷ (Entry Price - Stop Loss Price).
Detailed Explanation
Position sizing determines how many shares or contracts to trade based on your risk tolerance. The formula is: Position Size = Risk Amount ÷ Risk Per Share. First, determine your dollar risk (1-2% of account). Then divide by the distance from entry to stop loss. This ensures you never lose more than your predetermined risk amount.
Key Points
- 1Step 1: Determine account risk (1-2%)
- 2Step 2: Calculate dollar risk amount
- 3Step 3: Identify stop loss level
- 4Step 4: Calculate risk per share (entry - stop)
- 5Step 5: Divide dollar risk by risk per share
Example
$50,000 account, 1% risk = $500. Entry at $100, stop at $95. Risk per share = $5. Position size = $500 ÷ $5 = 100 shares.
Related Questions
How much should I risk per trade?
Professional traders typically risk 1-2% of their total account on any single trade.
What is a good risk reward ratio?
A minimum 1:2 risk-reward ratio is recommended, meaning you risk $1 to potentially make $2.
Where should I place my stop loss?
Place stop losses below key support levels, pattern lows, or recent swing lows - where the trade thesis would be invalidated.