Position Size Calculator
Calculate the optimal number of shares to buy based on your account size and risk tolerance. Never risk more than you can afford to lose on a single trade.
Your Parameters
Recommended Position Size
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Max Risk Amount
$200.00
2% of account
Risk Per Share
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Entry - Stop Loss
Position % of Account
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Actual Max Loss
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How to Use the Position Size Calculator
Position sizing is one of the most critical aspects of risk management in trading. This calculator helps you determine exactly how many shares to buy based on three key inputs:
- Account Size — Your total trading account value
- Risk Per Trade — The maximum percentage of your account you're willing to lose on a single trade (most professionals use 1-2%)
- Stop Loss — The price at which you'll exit the trade if it moves against you
The 2% Rule
Many professional traders follow the "2% rule" — never risking more than 2% of your account on any single trade. This means on a $10,000 account, your maximum loss on any trade should be $200. This protects your capital during losing streaks and ensures longevity in the market.
Why Position Sizing Matters
Even with a 60% win rate, improper position sizing can lead to account blowups. By calculating the right number of shares before entering any trade, you ensure that no single loss can significantly damage your portfolio.
Get Position Sizes With Every Signal
Atlas Capital premium signals include allocation percentages so you always know the right size.
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