What Derivatives Really Are

A derivative is a financial contract whose value depends on something else, such as a currency, a share, or a commodity. Companies use these contracts to manage changing prices. Traders also use them to take risks and try to earn a profit.

The main difference between contracts is what each side agrees to do. A forward or a futures contract creates an obligation to buy or sell. An option gives its buyer a choice, in return for a fee.

Fixing the cost of a future payment

Suppose a US company imports equipment from Europe. It must pay its supplier €100,000 in three months. The company earns dollars, so it will need to buy euros to make that payment.

If one euro costs $1.10 when the payment is due, the equipment costs $110,000. If the rate rises to $1.20, it costs $120,000. The supplier still receives the same amount in euros, but the company needs more dollars.

The company can remove this uncertainty by agreeing on an exchange rate today. It makes a contract with a bank to buy €100,000 in three months at $1.10 per euro. This is a forward contract. The future purchase price is fixed, and both sides must complete the deal.

The company agrees to buy euros, so it has a long position. The bank agrees to sell euros, so it has a short position. The date when they complete the exchange is the contract’s maturity.

The company will now pay $110,000 for its euros. If the market rate rises, the contract protects it from the extra cost. If the rate falls, the company must still use the agreed rate. It gives up the chance to buy euros more cheaply.

This use of a contract to reduce an existing risk is called hedging. The company wants a predictable bill, rather than a profit from currency trading.

The numbers here are examples, not bank quotes. We leave out fees, taxes, and interest costs. A real forward rate can differ from today’s exchange rate, partly because interest rates differ between currencies.

Private agreements and exchange trading

The company arranged its forward directly with a bank. This is part of the over-the-counter market, usually shortened to OTC. The two sides can agree on an amount and payment date that fit the company’s needs.

Banks often offer both a buying price and a selling price. These are the bid and ask. From the bank’s point of view, the bid is the price it pays to buy, and the ask is the price it charges to sell. The difference is the spread, which adds to the customer’s trading cost.

A market maker provides these prices and is willing to take either side of a trade. This helps customers find someone to trade with.

An exchange works differently. It lists contracts with set sizes, dates, and settlement rules. Buyers and sellers submit orders, usually through an electronic system. They agree on the price, but do not design a new contract for every trade.

Standard terms make contracts easier to trade. They also mean a contract may not match a company’s exact payment amount or date.

Where a trade takes place is separate from how its obligations are handled. Some OTC deals remain between the original parties. Others go through a central clearing system, as exchange-traded contracts usually do.

How futures change the cash payments

A futures contract also creates an obligation to buy or sell at an agreed price. It normally trades on an exchange, under the exchange’s standard terms.

A central counterparty, or CCP, stands between the two sides. A clearing house can perform this role: it becomes the buyer to the seller and the seller to the buyer. It manages the risk that a party fails to pay. This is called counterparty risk.

The CCP reduces that risk, but does not remove every risk from the trade. Traders still face losses when prices move against their positions.

The timing of payments is an important difference between a typical forward and a futures contract. Futures gains and losses are paid regularly, usually each trading day. Traders also post margin: money or other accepted assets held as security for their obligations.

Return to the importer. To keep the example simple, assume it can take a euro futures position covering exactly €100,000, at $1.10 per euro. This is a simplified position, not the specification of an actual exchange contract.

If the futures price falls to $1.09, the company’s long position loses $1,000:

€100,000 × ($1.09 − $1.10) = −$1,000

That loss must be paid even though the supplier’s bill is still months away. Meanwhile, a lower euro exchange rate makes the future equipment payment cheaper in dollars. The hedge can still serve its purpose, but the company needs cash to cover the futures loss now.

Margin is therefore neither the purchase price of a futures contract nor a limit on its losses. A trader may have to provide more money after opening the position.

Paying for the choice to buy

The importer may want protection against a stronger euro while keeping the benefit of a weaker euro. It can buy an option instead of fixing the rate with a forward.

A call option gives its buyer the right to buy an asset at an agreed price. A put option gives its buyer the right to sell. That agreed price is the strike price. The buyer pays a fee called the premium.

Suppose the company pays $2,000 for a call that lets it buy €100,000 at $1.10 per euro in three months. The company can use this right, but does not have to.

If the market rate reaches $1.20, the company uses the option. It pays $110,000 for the euros, plus the $2,000 premium already paid. Its total cost is $112,000.

If the rate falls to $1.00, the company lets the option expire and buys euros at the market rate. Its total cost is $102,000, including the premium.

Dollar cost of the €100,000 payment	Euro at $1.20	Euro at $1.00
Without a hedge	$120,000	$100,000
With the forward	$110,000	$110,000
With the call, including its premium	$112,000	$102,000

The forward fixes the cost. The call sets a maximum cost under these assumptions, while allowing the company to benefit if the euro falls.

The option’s payoff is the value received from the right at expiry, before counting its purchase cost. At $1.20, the right to buy euros at $1.10 is worth $10,000. After subtracting the $2,000 premium, the profit on the option itself is $8,000.

The seller has a different position. It receives the premium but must meet the contract’s obligations if the buyer uses the right. The buyer can lose the full premium; the seller can lose much more than the premium received.

Options also differ in when they can be used. A European-style option can be exercised only at expiry. An American-style option allows earlier exercise during the period set by the contract. These names describe the rules, not where the option trades.

The purpose of the trade matters

The importer buys a derivative because it already has a euro payment to make. Another trader could buy the same contract without any bill to pay. That trader would be taking a currency risk to try to earn a profit. This is speculation.

Derivatives can give traders a large exposure for a relatively small initial payment. This is called leverage. It can increase gains, but it also makes losses large compared with the money first committed. A futures loss can exceed the original margin. A purchased option can lose its entire premium.

Arbitrage has a different aim. A trader buys and sells equivalent assets or contracts at different prices to secure the difference. Both sides of the trade must be available, and the difference must cover trading and funding costs. Expecting two prices to move closer later is not enough to make a trade risk-free.

These activities help explain why the same contract can serve different purposes. Its terms determine the payments. The trader’s other assets and obligations determine which risks those payments reduce or add.

Where the Indian market fits

India’s modern exchange-traded share and index derivatives developed around 2000. BSE launched index futures on 9 June 2000, followed by NSE on 12 June. NSE added index options, options on individual shares, and futures on individual shares during 2001.

That was not the beginning of every Indian derivatives market. Commodity trading had an earlier history. The Reserve Bank of India also allowed certain financial institutions to use rupee interest-rate swaps and forward rate agreements in July 1999.

An interest-rate swap lets two sides exchange interest payments, often fixed-rate payments for payments based on a changing rate. It is another common type of derivative.

SEBI regulates the exchange-traded share and commodity derivatives segments. RBI regulates relevant currency and interest-rate markets. CCIL provides central clearing for eligible rupee interest-rate contracts. These are different roles: trading, regulation, and clearing are separate functions.

What can go wrong

A hedge can fail to match the amount, timing, or price risk of the original payment. A company can also struggle to fund margin payments before the benefit of its hedge arrives. If the supplier’s order is cancelled, a currency contract left open may create a risk the company no longer needs.

For this reason, companies need to track both the contract and the business payment it supports. They also need limits on position size and enough cash for possible losses and margin requirements.

A common mistake is to judge a hedge by the derivative’s result alone. If the euro falls to $1.00, the importer’s forward is $10,000 worse than buying euros at the market rate. But the purpose was to fix the equipment bill at $110,000. The company achieved that result.

A forward fixes a future purchase or sale price. A futures contract adds standard exchange terms and regular payments of gains and losses. An option provides a choice for a premium; understanding the full position shows whether any of these contracts reduces risk or adds it.