From Global Price to Indian Price: How USD/INR Shapes MCX Commodity Prices

In Chapter 9, we saw that Gold can react to interest rates, Crude Oil to supply disruptions and Copper to changes in industrial demand. But for an Indian trader, there is another layer between that global development and the price that finally appears on the screen.

Gold may be quoted internationally in US dollars per troy ounce. Crude Oil is tracked through global benchmarks such as WTI and Brent. Yet the Indian trader sees a rupee-denominated contract on a domestic exchange.

So when an international commodity moves, the Indian price has to absorb both the global commodity move and the currency conversion into rupees.

Major commodities trade across countries, so international markets use recognised benchmarks as reference prices.

Gold has international benchmark pricing in US dollars per troy ounce. Crude Oil has benchmarks such as Brent and WTI, while different metals have their own international reference markets. MCX Crude Oil futures, for example, use NYMEX WTI as the underlying benchmark.

These benchmarks are important because the commodity itself is part of a global market. If expectations around oil supply change, international Crude prices can react. If financial conditions change, Gold can move globally. An Indian contract is therefore not developing its price in isolation from what is happening elsewhere.

But the international benchmark is only the first part of the Indian price.

Most major international commodity prices are quoted in US dollars, while Indian commodity contracts are traded in rupees.

That makes USD/INR an important part of the translation.

Suppose the international price of Gold does not move at all, but the rupee weakens against the dollar. The same dollar price now converts into more rupees.

If the rupee strengthens, the opposite happens.

So an Indian trader can be looking at two things moving at the same time: the commodity itself and the exchange rate between the dollar and the rupee.

This also means the two can reinforce or partly offset each other.

If international Gold rises and the rupee weakens, both movements push the rupee value in the same direction. If international Gold rises while the rupee strengthens, part of that global move can be offset when translated into rupees.

Gold gives us a simple way to see the conversion.

Suppose international Gold is trading at $4,000 per troy ounce and USD/INR is ₹95.

One troy ounce is approximately 31.1 grams, so the international value of 10 grams of Gold, converted into rupees, would be roughly:

$4,000 × ₹95 × 10 ÷ 31.1 = ~₹1,22,186.50 per 10 grams

Now suppose international Gold remains at $4,000, but USD/INR moves from ₹95 to ₹97.

The same calculation gives a value of ~₹1,24,759 per 10 grams.

Nothing happened to the international Gold price. The rupee simply weakened, making the same dollar-priced Gold more expensive when translated into Indian currency.

Note: This is only a simplified conversion. The actual Indian futures price can also reflect domestic costs, contract specifications and other market factors. The purpose of the example is to separate the two moving parts: international Gold and USD/INR.

If international Gold rises 2%, it does not follow that an Indian Gold contract must also rise exactly 2%.

Currency is one reason. Contract structure is another.

The international benchmark and the Indian futures contract are related, but they are not the same instrument. They can use different quotation units, expiry dates and contract specifications. Domestic duties, costs and local supply-demand conditions can also affect the price seen in India.

That is why looking at an international chart and expecting the Indian contract to reproduce every move tick for tick can be misleading.

The international market gives you an important reference. USD/INR helps translate that reference into rupees. The Indian contract then trades within its own domestic market and contract structure.

There is also a timing difference.

As we saw in Chapter 6, Indian commodity trading extends well beyond regular equity-market hours, so a large part of the global trading day overlaps with MCX. This means many international developments can already begin feeding into Indian prices while the domestic commodity market is open.

But the overlap is not complete.

Global commodity and currency markets can continue moving after the Indian contract has stopped trading. If an important development happens during that gap, the international benchmark may move while the Indian price remains unchanged simply because the domestic market is closed.

When trading resumes, the Indian contract may then adjust to the information that arrived during those hours.

So an overnight move on the international chart is not necessarily a fresh Indian development the next morning. It may simply be information that the domestic contract has not yet had a chance to reflect.

Suppose international Gold rises overnight.

Before assuming the Indian contract should rise by exactly the same amount, there are a few things to check.

What happened to Gold internationally? What happened to USD/INR? Was the Indian market open when the move occurred? And is there anything about the domestic contract or Indian market that could change the translation?

The same logic applies to Crude Oil, Copper and other globally connected commodities.

That distinction becomes useful in the next chapter because knowing what moved the commodity still does not give you a trade by itself.

You now have to decide whether there is actually a setup worth taking.

That takes us to Chapter 11: How Do You Analyse A Commodity Trade?

• Many commodities traded in India are connected to international benchmark prices.
• Because major global commodities are commonly quoted in US dollars, USD/INR becomes an additional price driver for an Indian trader.
• A weaker rupee can amplify a rise in the international commodity price, while a stronger rupee can partly offset it.
• Indian commodity prices do not have to move exactly like international benchmarks because currency, contract specifications, domestic costs and local conditions can also matter.
• Differences in trading hours mean some global moves may already be reflected while Indian commodity markets are open, while others may be absorbed when domestic trading resumes.