MCX Futures Contracts Basics: Lot Size, Expiry, Margin & Rollover

Key Takeaways: 

• A futures contract is an agreement to buy/sell a commodity at a fixed price on a future date

• Global markets like Dow futures and S&P 500 futures influence sentiment

• Understanding MCX futures contracts basics is explained thoroughly with examples

• Concepts like lot size, margin, and expiry are essential in futures trading

Introduction

A futures contract is a standardised, exchange-traded agreement to buy or sell a commodity at a fixed price on a future date. Standardised refers to the rules, such as lot size and expiry date, which are already set by the exchange, like MCX. It allows traders to focus solely on price speculation or hedging, as all other contract terms are pre-negotiated by the exchange.

To understand MCX futures contract basics easily, ‘futures contracts’ refer to predefined agreements where the actual settlement happens in the future to buy or sell a commodity, currency, or financial asset at a fixed price on a specific date. These contracts are created and standardised by the exchange and not by the traders. 

In futures trading, traders only have to choose whether to buy or sell. They don’t have to negotiate the terms as the exchange already sets the lot size, expiry date, margin, and tick size. This structure is similar across global markets, such as Dow futures and S&P 500 futures.

In addition to this, traders use futures contracts for two reasons:

• Firstly, to profit from price movements

• Second, to hedge against price risk

Futures Trading works in a very simple way, and those ways are applied to the indices like Dow futures and S&P 500 futures. 

• If the trader predicts the price will rise, then they buy the futures

• If they think the price will fall, then they sell the futures

For example, a jewellery manufacturer expects to need 10 kg of gold next month. Now, gold prices keep fluctuating, and to avoid higher prices later, they buy gold futures today at the current rate. 

Lot Size in Futures Trading

A lot size is a key component in MCX Futures Contract Basics. It refers to the fixed quantity of a commodity that a trader must buy or sell in one futures contract. It doesn’t allow trading 1 unit, 5 units or any random amount because the exchange decides a standard bundle, where the bundle is the lot size. 

For instance, if the lot size of crude oil is 100 barrels, this means one contract always represents 100 barrels there and not just one.

Lot size is also known as contract size. It has simplified the trading as every contract has the following things to make traders understand how price changes affect profit and loss:

• The same quantity

• The same specifications

• The same calculation rules

Lot size ensures uniformity, just like Dow futures and S&P 500 futures, where they represent a fixed index value.

Now, every commodity like energy products, livestock, agricultural commodities, industrial metals and precious metals doesn’t have the same lot size. Each commodity has a different price, demand, volatility, usage and market depth. Therefore, the exchange sets different lot sizes to make trading practical and balanced for beginners and institutions. 

Apart from this, the exchange adjusts the lot size according to volatility to avoid extreme profit or loss from small price movements. The higher the volatility, the smaller the lot size and vice versa.

Expiry of Futures Contracts

In the MCX futures contract basics, there is an expiry of the futures contracts. It is a deadline after which the contracts end and are settled by the exchange. After this day, the contract is no longer valid, and it is settled by the exchange in one of the following:

• Cash Settlement

• Physical delivery, depending on the commodity 

On the expiry day, traders must decide whether to close, rollover, or exercise their positions before the contracts expire.

Moreover, some commodities offer weekly expiry, and some offer monthly expiry cycles. Weekly contracts expire on a fixed weekday, usually the same one each week, and monthly contracts expire at the end of the month. 

Expiry impacts volatility. In global markets like Dow futures, traders observe an increased rate of activity near the expiry date and the S&P 500 futures contract experiences sharp movements. 

Margin Requirements in Futures Trading

Margin is a deposit that is kept with the broker as collateral to open and maintain a futures position. Traders don’t pay the full contract value but pay only a small percentage of its margin. The margin ensures that traders can cover potential losses. 

Margins change regularly because they are dependent on the following:

• Market Stability

• Volatility in the commodity

• Exchange risk policies

• Regulatory instructions

• Demand for the business season in delivery commodities

Since the margin is based on the contract value, it is calculated as:

Contract Value = Futures Price x Lot Size

It carries the power of leverage, but equally carries a big risk. For instance, the crude oil price is Rs. 6,500, and the lot size is 100 barrels, the contract value will be Rs. 6,50,000. If the margin requirement is 10%, the margin needed is Rs. 65,000.

So, the trader needs to deposit Rs. 65,000 to control a contract worth Rs. 6.5 lakh.

What is Rollover in Futures?

Rollover refers to closing the current month's futures contract and opening the same position in the next-month contract to continue the trade without hitting expiry. 

Rollover happens in three steps:

• Close the current month contract when the expiry is near

• Check the margin for the next month's contract 

• Open the same position again in the next month's contract

   

Conclusion

Understanding the fundamentals of the futures contracts, such as lot size, margin, rollover and expiry cycles, is essential for avoiding common beginner mistakes. With the right position sizing, proper risk control and awareness of contract specifications, traders can trade more confidently in the commodity market. 

Frequently Asked Questions (FAQs)

1. Why do beginners prefer small lot sizes?

Beginners choose smaller lot sizes as they require less capital, lower risk and reduce the impact of small price movement. New traders can learn safely without risking too much money.

2. How does lot size affect the margin required in futures trading?

Lot size directly decides the contract value, and the margin is calculated as a percentage of that value.

A larger lot size increases the total contract value, which means a higher margin needs to be paid to enter a trade, and a smaller lot size reduces the contract value, acting as beginner-friendly. 

3. What happens if the trader doesn’t close their position on the expiry day?

If traders don’t close their position on the last day, then the exchange will either automatically settle the contract or move the position into delivery.

4. When should a trader choose monthly commodity contracts?

A monthly contract is suitable for beginners and people who want stability and want to hold positions for several days or weeks without facing fast expiry pressure.

5. Why do the last few days before expiry show sudden spikes and reversals?

It happens because many traders tend to take action at the same time, like:

• Rushing to square off positions

• Rollover to the next contract

• Large players like hedgers & institutions adjust positions 

6. What are the main types of margins in the MCX futures contract basics?

The main types of margins are as follows:

• Initial Margin (IM): Required to open a futures position

• Maintenance Margin: Minimum balance to keep the position active

• MTM Margin: Daily adjustment of profit and loss

• Additional Margin: Extra buffer during high volatility

7. Why do traders rollover their future positions?

Traders rollover to avoid expiry, prevent delivery risk and continue holding the trade for the next month’s trend.