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Chapter 10: Understanding Derivatives

Forwards, futures, options, swaps — market structure, purposes, benefits/costs/risks, equity/currency/commodity derivatives, strategies

10.1 Basics of Derivatives

A derivative is a contract or product whose value is derived from an underlying asset (metals, energy, agri-commodities, financial assets like shares/bonds). Under SC(R)A, 1956, derivatives are treated as securities; under RBI Act 1934, Section 45U(a), a derivative is an instrument settled at a future date whose value derives from interest rates, FX rates, credit ratings/index, or security prices — including IRS, FRAs, currency swaps and options.

Derivative
Forwards
Futures
Options
Swaps

10.2 Underlying Concepts

ConceptExplanation
Zero Sum GameOne party's gain = other's loss (assuming no taxes/transaction costs); net position across both sides is zero
Settlement MechanismSEBI mandates physical settlement for stock derivatives; Index derivatives are cash-settled (price differential exchanged, no underlying delivered)
MarginingFunds/securities deposited as collateral. Initial Margin = SPAN® margin + ELM (Extreme Loss Margin), should cover losses in 99% of cases. Premium Margin charged to option buyers = premium × quantity
Open InterestTotal outstanding (unsettled) derivative contracts — a measure of money flow into/out of the market, NOT trading volume

SPAN® (Standard Portfolio Analysis of Risk) is margin-calculation software developed by the Chicago Mercantile Exchange (CME), widely used by global exchanges.

10.3 Types of Derivative Products

10.3.1 Forwards

A bilateral OTC agreement to buy/sell an asset at a future date at a price decided today; both parties are obliged to perform.

Illustration — Gold Forward

Spot price of gold on 9-Mar-2018 = ₹30,425/10g (cash transaction). Instead, agree today to take delivery in 1 month at ₹30,450 (forward price) — no money/gold changes hands now. The buyer is "long forward"; the goldsmith is "short forward".

LimitationExplanation
Liquidity RiskTailor-made, not exchange-listed — hard to find counterparties
Counterparty (Default/Credit) RiskEither party may default if market moves against the contracted price (e.g., rice contract example: buyer/seller may walk away if spot price moves favourably for them)

10.3.2 Futures

Standardized forward contracts traded on an organized exchange; the exchange (via clearing house) becomes counterparty to both sides, eliminating counterparty risk. Buyer = long position; seller = short position.

10.3.3 Options

Gives the buyer the right but not the obligation to buy/sell the underlying at a stated price (strike) on/before a date, for a premium. The seller/writer has the obligation.

TypeRight Granted to Buyer
Call OptionRight to buy the underlying
Put OptionRight to sell the underlying
MoneynessCondition (Call) / Outcome
In-The-Money (ITM)Underlying price > strike price — exercising is profitable
At-The-Money (ATM)Underlying price = strike price — no gain
Out-of-The-Money (OTM)Underlying price < strike price — loss if exercised

Intrinsic Value = excess of current price over strike price (positive for ITM options). Time Value = extra premium paid above intrinsic value, reflecting potential for the option to gain value before expiry.

10.3.4 Swaps

A contract where two parties exchange specified cash flows on future dates — commonly Interest Rate Swaps and Currency Swaps. The notional principal is never exchanged; only interest amounts are exchanged on settlement dates.

Illustration — Converting Floating to Fixed

A borrower owes a floating (T-bill + spread) quarterly payment but prefers fixed. She enters a swap: pays fixed to dealer, receives floating (T-bill + spread) from dealer. The received floating leg cancels her floating obligation, leaving a net fixed-rate obligation — effectively converting floating-rate debt into fixed-rate debt.

FIMMDA (Fixed Income Money Market and Derivatives Association of India) — a voluntary body of banks, FIs and PDs that interfaces with regulators, develops benchmark rates/instruments, standard documentation and market practices for bond, money & derivatives markets.

10.4 Structure of Derivative Markets

Market TypeFeatures
OTC MarketsPrivately negotiated, non-standard, depend on mutual trust between institutions; e.g., forwards, interest-rate swaps
Exchange Traded MarketsStandardized contracts settled via clearing house; margining enables anonymous counterparties to trade safely; e.g., futures, options

Derivative products available in India: indices, stocks, interest rates and commodities (plus OTC forward markets for agri-commodities and interest-rate swaps).

10.5 Purpose of Derivatives

Hedging

Protecting the value of an existing investment/portfolio from adverse future price movements to achieve a desired return objective.

Speculation

Taking a position based purely on a view of future prices, without an underlying exposure — e.g., buying futures expecting prices to rise.

Arbitrage

Exploiting price differences for the same asset across markets (Law of One Price) for riskless profit; such activity itself narrows the gap.

10.6 Benefits, Costs and Risks of Derivatives

Benefits

  • Better risk management via symmetrical/asymmetrical pay-off structuring
  • Enhances liquidity of underlying markets, lowers overall trading costs
  • Boosts participation, information dissemination and price discovery

Risks

  • Counterparty risk (default)
  • Price risk (adverse price movement)
  • Liquidity risk (cannot exit position)
  • Legal/regulatory risk (enforceability)
  • Operational risk (fraud, poor documentation/execution)

Being leveraged instruments, derivatives may not suit investors with limited resources/experience/risk tolerance. Brokers must provide the Model Risk Disclosure Document before clients trade in F&O.

10.7 Equity, Currency & Commodity Derivatives

Commodity Derivatives

Used for risk management (reduction/transfer), price discovery and transactional efficiency — help farmers, traders, processors hedge against price volatility. Contracts are standardized (quantity, quality, delivery date/place, price-fluctuation limits). Traded on SEBI-registered exchanges: MCX, NCDEX, ICEX, NSE, BSE. Categories: Bullion, Metals, Energy, Agriculture.

Illustration

A biscuit manufacturer needing wheat in future can buy wheat futures on a commodity exchange to lock in today's price for future delivery, regardless of the spot price then prevailing.

Currency Derivatives

Underlying = an exchange rate; instruments include forwards, futures, swaps and options on currency pairs (USD, EUR, GBP, JPY, plus cross-currency pairs EUR-USD, GBP-USD, USD-JPY).

InstrumentDescription
Currency Future (FX Future)Exchange one currency for another at a fixed future date and rate
Currency OptionRight (not obligation) to buy/sell currency at specified rate in a period, for a premium

10.8 Derivative Markets, Products & Strategies

Derivatives trading was introduced in India in June 2000; India's equity derivatives markets are now among the largest globally.

Pricing a Futures Contract — Cost of Carry

F = S + Carry Costs

Illustration

Spot price (S) = ₹100; Futures price (F, 20-day delivery) = ₹120. The ₹20 difference equals the interest cost of carrying the position for 20 days: 120 = 100 + (interest for 20 days).

If the actual cost of borrowing to buy spot & carry equals exactly ₹20, there is no arbitrage profit — the law of one price holds (net of costs).

Basis = Spot Price − Futures Price (positive basis when futures > spot). On expiry, spot and futures converge (spot-future convergence) since carry cost becomes zero.

Spot-Future Arbitrage Illustration

3-Mar-2017: XYZ cash market price = ₹3,984; XYZ futures (expiry 30-Mar) = ₹4,032.

Buy cash ₹3,984, sell futures ₹4,032 → locked difference = ₹48.

Annualized Profit = (48 / 3,984) × (365 / 27) = 16.287% p.a.

Profit is locked-in because of guaranteed spot-future convergence at settlement.

Option Pay-offs

PositionRight/ObligationMax LossMax Gain
Long on Option (Buyer)Right, no obligationLimited to premium paidDepends on underlying price at exercise/expiry (theoretically unlimited for calls)
Short on Option (Writer)Obligation, no rightTheoretically unlimitedLimited to premium received

In India, equity options are mostly European-style (exercised only on expiry); American options can be exercised/assigned any time before expiry.

Key Takeaways

Self-Test: Quiz

1. Which of the following best describes a "zero sum game" in derivatives?

2. As per SEBI's settlement mandate, how are equity Index derivatives settled in India?

3. The maximum loss for the buyer (holder) of a call option is:

4. The pricing relationship between a stock's spot price (S) and its futures price (F) based on cost of carry is expressed as:

5. Which voluntary market body interfaces with regulators on bond, money and derivatives market issues and develops standardized practices/documentation?