📋 Topics Covered
- The Core Concept of Derivatives
- Differences Between Futures and Options
- Key Terms: Expiry, Strike Price, and MTM
- Margin Requirements for Buyers vs. Sellers
- Contract Expiration Cycles and Rollovers
The world of Futures and Options (F&O) in India is a high-reward, high-risk segment regulated by SEBI and primarily traded on the NSE and BSE.
📈 1.1 The Core Concept: Derivatives
F&O are “derivatives,” meaning they derive their value from an underlying asset (like the Nifty 50 index or Reliance stock). You aren’t buying the stock itself; you are trading a contract based on its future price.
🔮 Futures
A legal agreement to buy or sell an asset at a predetermined price on a specific date.
- Obligation: Both the buyer and seller must honor the contract.
- Outcome: If you buy a Nifty Future at ₹24,000 and it goes to ₹24,100, you profit. If it drops, you lose.
📉 Options
A contract that gives you the right, but not the obligation, to buy or sell.
- Call Option (CE): You buy this if you expect the market to go UP.
- Put Option (PE): You buy this if you expect the market to go DOWN.
- Premium: As a buyer, you pay a non-refundable fee (premium) to the seller. Your maximum loss is limited to this premium, but your profit potential is theoretically unlimited.
🔑 1.2 Key Terms in the Indian Context
- Expiry: All contracts have an end date. In India, index options are European style (marked as CE/PE), meaning they can only be exercised on the expiry date (though you can sell/square off your position anytime before that).
- Strike Price: The price at which you agree to buy or sell the underlying asset.
- MTM (Mark-to-Market): For Futures, your profit or loss is calculated at the end of every trading day and adjusted in your account immediately.
💰 1.3 Margin: The “Entry Fee”
To trade F&O, you don’t need the full contract value, but you do need a Margin.
- For Option Buyers: You only need the Premium (e.g., ₹100 premium × 65 lot size = ₹6,500).
- For Option Sellers & Future Traders: You need a much higher amount (SPAN + Exposure margin), often exceeding ₹1.2 Lakhs per lot for Nifty, because the risk of loss is much higher.
🔄 1.4 Contract Expiration Cycles
- Near Month (Current Month): This is the contract expiring in the current month. These have the highest liquidity and trading volume.
- Next Month (Mid Month): This is the contract expiring in the following month. Traders who want to hold a position for slightly longer than a few weeks often look here.
- Far Month: This is the contract expiring the month after next. These typically have very low liquidity and are used by long-term institutional hedgers.
🔁 What is a “Rollover”?
When the Near Month contract is about to expire, but you want to keep your position open, you perform a Rollover.
- The Action: You close your position in the expiring contract and simultaneously open the same position in the Next Month contract.
- The Shift: On the day after the expiry, the next month’s contract becomes the new “Near Month”.