Trading in Index Futures

Index futures are standardized contracts that obligate the buyer to receive, and the seller to deliver, the cash value of a pre‑defined commodity index at a future date. Unlike a physical commodity future, there is no underlying delivery of the actual commodity; settlement is purely cash based.

The contract derives its value from the weighted average of prices of a basket of commodities that constitute the index, for example the MCX Commodity Index. Because the index reflects market-wide price movements, index futures are used for broad‑based hedging or speculation rather than exposure to a single commodity.

For the NISM exam, you must remember that index futures are governed by SEBI (Securities and Exchange Board of India) regulations, and they follow the same exchange‑traded framework as other derivatives – transparent order books, daily mark‑to‑market, and mandatory margin.

• Key term – Cash Settlement: Final payment is the difference between the contract price and the index’s closing value on expiry.
• Key term – Contract Multiplier: The monetary value of one index point, specified by the exchange.

Each index future contract is defined by a set of specifications published by the exchange (e.g., MCX). The most important specifications are:

Lot Size – the number of index points that constitute one contract. For the MCX Commodity Index, a lot typically equals 10 points. Tick Size – the minimum price movement, usually 0.05 index points, which translates to a monetary tick value (Tick Size × Contract Multiplier).

Other specifications include the expiry cycle (usually the last Thursday of the contract month), the last trading day (usually the day before expiry), and the settlement price (the index’s closing value on expiry). All these details are printed in the exchange’s contract note and are exam‑relevant.

Remember that the contract multiplier is fixed for the life of the contract; any change in the index value is multiplied by this factor to obtain the monetary profit or loss.

The theoretical price of an index future is derived from the cost‑of‑carry model: Futures Price = Spot Index × e^{(r + u - y)T}. Here, r is the risk‑free rate, u is storage cost (often zero for cash‑settled indices), y is the convenience yield, and T is time to expiry in years.

In practice, traders look at the market price quoted on the exchange, which reflects supply‑demand dynamics, expectations of future spot movements, and the prevailing interest rates. The quoted price is always expressed in index points, not rupees.

For exam calculations, you may be asked to compute the profit or loss on a trade, or to compare the quoted futures price with the theoretical price to identify arbitrage opportunities.

SEBI mandates two types of margin for index futures: Initial Margin (the amount required to open a position) and Variation Margin (daily settlement based on price changes). The exchange publishes a minimum margin percentage, usually 5‑10% of the contract value, but brokers may require higher levels based on client risk profile.

At the end of each trading day, the exchange performs a mark‑to‑market (MTM) process. Profits are credited to the trader’s account, and losses are debited. If the variation margin falls below the maintenance margin, a margin call is issued, and the trader must top up the account immediately.

For the NISM exam, you may be asked to calculate the amount of margin required or to determine whether a margin call would be triggered after a price move.

All index futures on Indian exchanges are settled in cash on the expiry day. The settlement price is the index’s closing value as reported by the exchange’s official source (e.g., MCX). No physical delivery of commodities occurs.

On expiry, the profit or loss is calculated using the formula shown earlier, and the net amount is transferred to the trader’s bank account. If the contract is held beyond expiry without closing, the exchange automatically squares off the position at the settlement price.

Regulatory requirement: SEBI mandates that brokers must inform clients of the settlement process at the time of trade confirmation, and they must maintain records for at least five years.

Index futures enable three primary strategies: speculation, hedging, and arbitrage. Speculators aim to profit from directional moves in the index, while hedgers (e.g., a commodity producer) use futures to lock in a price for the basket of commodities they sell.

Arbitrageurs look for price discrepancies between the index future and its underlying basket of commodity futures. If the futures price is higher than the theoretical price, they can sell the future and buy the underlying basket, locking in a risk‑free profit after accounting for transaction costs.

Exam questions often present a scenario and ask which strategy is appropriate, or they may ask you to compute the arbitrage profit using the cost‑of‑carry model.

SEBI requires all participants to maintain a risk management system that monitors position limits, margin adequacy, and exposure concentration. Brokers must report large positions (exceeding 5% of open interest) to the exchange.

Key risk controls include setting stop‑loss orders, using the daily MTM process to limit loss accumulation, and adhering to the Position Limit rules for index futures, which are periodically revised by SEBI.

For the exam, you may be asked which body enforces margin requirements (answer: SEBI) or what the penalty is for failing to meet variation margin (answer: position may be liquidated by the exchange).

Many candidates confuse the expiry date with the last trading day. Remember: the last trading day is the business day before expiry, after which the position is automatically squared off.

Another frequent error is ignoring the contract multiplier when computing profit/loss. Always multiply the point difference by the multiplier, not by the lot size alone.

FAQ: "Can I take physical delivery of an index future?" No. Index futures are cash‑settled only, as per SEBI regulations. Physical delivery applies only to single commodity futures where the contract specifies delivery terms.