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What is position sizing, how much capital to invest per trade, how to calculate risk per trade — complete Hindi guide.
Published by The Retail Trader · AUG 14, 2026 · Features
What is position sizing, how much capital to invest per trade, how to calculate risk per trade — complete Hindi guide.
Position sizing means how much money to invest in a trade. This is the most important part of risk management.
Simple definition: > Position sizing = "How many shares to buy in Is trade?" This decides your risk.
Without Position Sizing:
• Invested ₹5,00,000 in a trade
• 10% loss = ₹50,000 (10% of ₹5,00,000 capital)
• 3 consecutive losses = ₹1,50,000 gone
With Position Sizing (2% Rule):
• Max risk per trade: ₹10,000 (2% of ₹5,00,000)
• 10% loss on position = ₹10,000 (controlled)
• 10 consecutive losses = ₹1,00,000 (survivable)
Method 1: Fixed Percentage (Simplest):
• Position Size = (Account × Risk%) / (Entry - Stop Loss)
• Example:
• Account: ₹5,00,000
• Risk: 2% = ₹10,000
• Entry: ₹2,500
• Stop Loss: ₹2,450
• Risk per share: ₹50
• Position Size = ₹10,000 / ₹50 = 200 shares
• Total investment: 200 × ₹2,500 = ₹5,00,000
Method 2: ATR-Based:
• Position Size = (Account × Risk%) / (2 × ATR)
• ATR = Average True Range (stock's volatility)
• Example:
• Account: ₹5,00,000
• Risk: 2% = ₹10,000
• Stock ATR: ₹30
• Stop loss: 2 × ATR = ₹60
• Position Size = ₹10,000 / ₹60 = 166 shares
Method 3: Volatility-Adjusted:
• Volatility Factor = Stock ATR / Nifty ATR
• If factor = 1.5 (stock 1.5x more volatile than Nifty)
• → Position size 1.5x smaller
• Normal: 200 shares
• Adjusted: 200 / 1.5 = 133 shares
Keep these five points in mind:
• Max risk per trade — Value: 2%, Why: Survive 10 consecutive losses
• Max positions — Value: 5, Why: 10% total portfolio risk
• Daily loss limit — Value: 5%, Why: Stop trading if losing day
• Weekly loss limit — Value: 10%, Why: Take a break
• Risk:Reward minimum — Value: 1:2, Why: Profitable even at 50% win rate
Keep these three points in mind:
• Intraday — Risk/Trade: 1-2%, Max Positions: 1-2, Total Risk: 2-4%
• Swing — Risk/Trade: 2%, Max Positions: 3-5, Total Risk: 6-10%
• Positional — Risk/Trade: 2-3%, Max Positions: 5-8, Total Risk: 10-15%
"I have confidence, I will try everything" — one wrong trade = account lost.
"It is falling, buy more hoon (large quantity)" — Loss doubles.
"I've won 3 trades, so now I'll trade a larger lot" — Overconfidence → big loss.
Same quantity in Reliance and small-cap stock = wrong. Adjust volatility.
Keep these points in mind:
• 📌 POSITION SIZING QUICK REFERENCE
• FORMULA:
• 📊 Position = (Account × Risk%) / (Entry - SL)
• 📊 ATR method: (Account × Risk%) / (2 × ATR)
• RULES:
• ✅ Max 2% risk per trade
• ✅ Max 5 positions
• ✅ Daily loss limit: 5%
• ✅ Risk:Reward minimum 1:2
• ✅ Adjust Volatility
• BY STYLE:
• 📊 Intraday: 1-2% risk, 1-2 positions
• 📊 Swing: 2% risk, 3-5 positions
• 📊 Positional: 2-3% risk, 5-8 positions
• AVOID:
• ❌ All-in (all in one trade)
• ❌ Averaging down with bigger size
• ❌ Increasing size after wins
• ❌ Same size for all stocks
Keep these five points in mind:
• What Is Risk Management?
• How to set stop loss?
• What Is Swing Trading?
• What Is Intraday Trading?
• What Is Trading Psychology?
The Retail Trader — educational market analysis. Not investment advice.
This article is for educational purposes only. It is not a buy or sell recommendation, a claim of guaranteed returns, or advisory guidance. Exchanges, SEBI and RBI change rules, rates and procedures from time to time, so verify every figure with your broker or an official source.