Nifty Lot Size and Margin Explained — How Much Money You Need

Understanding lot size and margin is essential before placing any Nifty trade. The lot size determines how much you make or lose per point, and the margin determines how much capital your broker blocks. This guide provides the exact numbers for 2026, including the impact of SEBI's recent margin framework changes.

Nifty 50 Lot Size

The current Nifty lot size is 25 units (effective since April 2023, reduced from 50). This means:

• Every 1-point move in Nifty = Rs 25 per lot
• A 100-point move = Rs 2,500 per lot
• A 200-point move = Rs 5,000 per lot

Margin Requirements (April 2026)

Instrument	Initial Margin	Exposure Margin	Total Blocked
Nifty Futures (1 lot)	~Rs 1,15,000	~Rs 30,000	~Rs 1,45,000
Nifty Option Buying	Premium only	None	Rs 1,000-5,000/lot
Nifty Option Selling (naked)	~Rs 1,20,000	~Rs 25,000	~Rs 1,45,000
Credit Spread (100-pt wide)	~Rs 35,000	~Rs 10,000	~Rs 45,000

Premium Calculation

When buying options, you pay the premium multiplied by lot size:

• Premium Rs 50 x 25 units = Rs 1,250 per lot
• Premium Rs 100 x 25 units = Rs 2,500 per lot
• Premium Rs 200 x 25 units = Rs 5,000 per lot

This is the maximum you can lose when buying options. No margin call, no additional liability.

Transaction Costs Breakdown

For every Nifty option trade (buy + sell), the total charges are approximately:

• Brokerage: Rs 20 per order (buy) + Rs 20 (sell) = Rs 40
• STT (Securities Transaction Tax): 0.0625% on sell premium (options). On Rs 5,000 sell value = Rs 3.12
• Exchange charges: approximately Rs 30-40 per lot round trip
• GST: 18% on brokerage + exchange charges = approximately Rs 12
• Total per lot round trip: approximately Rs 85-95

Conclusion

Nifty's lot size of 25 units means every point is Rs 25. Options buying requires only premium (Rs 1,000-5,000 per lot), making it the most accessible entry point. Futures and option selling require Rs 1.4-1.5 lakh margin per lot. Always account for transaction costs (Rs 85-95 per lot round trip) in your profitability calculations. With Rs 25,000, you can comfortably buy 5-10 option lots for learning; with Rs 5 lakh, you can begin option selling strategies.

Frequently Asked Questions

What is the minimum capital for Nifty trading?

Rs 2,000-5,000 for options buying (1 lot). Rs 1,50,000 for futures (1 lot margin). Rs 10,000-25,000 recommended for beginners starting with options buying.

Is Nifty trading safe for beginners?

Option buying is the safest entry point — your maximum loss is limited to the premium paid. Futures and option selling carry higher risk due to leverage and potentially unlimited losses.

Which broker is best for Nifty trading in India?

Zerodha is the most popular for active traders (best platform, Rs 20/order). Groww is best for beginners (simplest interface). Angel One offers good research tools.

Can I trade Nifty with Rs 10,000?

Yes. You can buy 2-4 lots of OTM options with Rs 10,000. This is enough for learning but not for consistent income. Increase capital to Rs 50,000+ once you develop a proven strategy.