USD INR Futures: Contract Specifications and Margin Requirements

The USD INR Pair (Part 1)

The contract specification of a currency futures instrument defines the precise terms under which trading takes place. For anyone considering participation in the USD-INR futures market, understanding these specifications is not optional; it is the foundation upon which every trading decision rests. The key features of the USD-INR futures contract are outlined in the table provided above.

To bring these specifications to life, consider the following practical illustration.

A trader observing a 15-minute chart of the USD-INR pair identifies a bearish Marubuzo candlestick pattern, marked by the encircled candle in the chart above. The pattern suggests downward momentum, and the trader decides to initiate a short position, placing a stop-loss at the high of the Marubuzo candle. The purpose here is not to validate the trade setup but to demonstrate how the mechanics of a USD-INR futures contract work in practice.

The trade parameters are as follows.

Date: 1st July 2016

Position: Short

Entry price: Rs. 67.6900

Stop-loss: Rs. 67.7500

Number of lots: 10

Lot size: 1,000 US Dollars

The contract value of a single lot is calculated by multiplying the lot size by the entry price.

1,000 multiplied by Rs. 67.70 equals Rs. 67,700.

With current USD-INR rates in the range of Rs. 86 to Rs. 87, the contract value of a single lot would be in the region of Rs. 86,000 to Rs. 87,000, illustrating how contract values shift with prevailing exchange rates.

Margin Requirements

The margin required to open a single USD-INR futures position is approximately Rs. 1,524, against a contract value of Rs. 67,700. Expressed as a percentage, this represents roughly 2.25 per cent of the total contract value. Of this, approximately 1.5 per cent constitutes the SPAN margin, which is the minimum margin mandated by the exchange, with the remainder representing the exposure margin.

For the trade in question involving 10 lots, the total margin requirement is calculated as follows.

10 multiplied by Rs. 1,525 equals Rs. 15,250.

This margin profile stands in sharp contrast to equity futures, where margin requirements typically range between 15 and 65 per cent of contract value depending on the underlying stock. Currency futures offer significantly lower margin requirements, enabling higher leverage. This is made possible by the relatively narrow trading ranges that currency pairs exhibit compared to individual equities. A stock can move several percentage points in a single session; a major currency pair rarely moves more than 1 to 2 per cent on any given day under normal market conditions. For those using a stock screener to compare leverage opportunities across asset classes, this distinction is worth noting.

Contract Logistics

Currency futures in India are quoted to four decimal places. This level of precision is deliberate and meaningful. The Reserve Bank of India publishes its reference rate to four decimal places, and even a movement at the fourth decimal can have material consequences when applied across billions of Dollars in foreign reserves or large institutional positions.

The minimum price movement, known as the tick size or pip, for the USD-INR contract is 0.0025. This means the smallest increment by which the USD-INR rate can move on the exchange is 0.0025 Rupees. When the rate moves from Rs. 86.9000 to Rs. 86.9025, it has moved by one pip.

Calculating the Rupee value of a single pip movement is straightforward.

Lot size multiplied by tick size equals pip value.

1,000 multiplied by 0.0025 equals Rs. 2.50.

Every pip movement in the USD-INR rate therefore generates a gain or loss of Rs. 2.50 per lot held.

Returning to the short trade, suppose the currency pair moves down to Rs. 67.6000 after the position is opened at Rs. 67.6900. The profit calculation proceeds as follows.

Entry price: Rs. 67.6900

Current market price: Rs. 67.6000

Total points moved: 67.6900 minus 67.6000 equals 0.0900

To convert this into pips, the total points moved are divided by the tick size.

0.0900 divided by 0.0025 equals 36 pips.

The total profit on the position is then calculated as follows.

Lot size multiplied by number of lots multiplied by total points equals profit.

1,000 multiplied by 10 multiplied by 0.0900 equals Rs. 900.

Expiry and Settlement

Currency futures contracts in India follow a monthly expiry cycle. The contract expires two working days before the last working day of the expiry month. In the example above, with July’s last working day falling on 29th July, the expiry date of the July series is 27th July. Importantly, trading in the expiring contract ceases at 12:30 PM on the expiry date, not at the close of the regular trading session.

Settlement at expiry is based on the RBI’s reference rate published on the expiry date, and all profits and losses are settled in Indian Rupees. If the position were held through to expiry on 27th July with the pair settling at Rs. 67.4000, the profit calculation would be as follows.

1,000 multiplied by 0.2900 multiplied by 10 equals Rs. 2,900.

The settled amount would be credited to the trader’s account on 28th July, the following working day. Throughout the life of the contract, daily mark-to-market settlements apply in the same manner as equity futures, with gains and losses reflected in the trading account at the close of each session.

This example provides a working illustration of how USD-INR currency futures operate from entry through to settlement. The subsequent chapters will examine the USD-INR options contract, offering a complementary perspective on currency derivatives for those building a comprehensive understanding of this segment of the stock market.