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Position Size Calculator
How many shares to buy based on your account risk.
Enter values to see your result
Frequently asked questions
Why size by risk, not capital?
Using fixed rupee amounts means stop loss distance determines your exposure. Volatile stocks need wider stops, so FEWER shares. Fixed % risk automates this.
What if I can't afford the shares?
Either take a smaller position (reduce risk), use leverage/MTF (adds cost), or pick lower-priced stocks. Don't widen stops to fit more shares.
Is position value relevant?
Yes — even with tight stops, gap-down risk exists. Cap position at 10–25% of account per single stock to limit overnight surprises.
Kelly criterion?
Optimal % = (win% × avgWin - loss% × avgLoss) / avgWin. Most pros use quarter-Kelly (1/4 of optimal) for safer sizing.