1 Introduction to Financial Derivatives
- HULL, John. Options, futures, and other derivatives. Ninth edition. Harlow: Pearson, 2018. ISBN 978-1-292-21289-0.
- Chapter 1 - Introduction
- Chapter 4 - Interest Rates
- PIRIE, Wendy L. Derivatives. Hoboken: Wiley, 2017. CFA institute investment series. ISBN 978-1-119-38181-5.
- Chapter 1 - Derivative Markets and Instruments
Learning Outcomes:
- Define and explain the concept of derivatives in financial markets.
- Analyze the importance and role of derivatives in finance.
- Distinguish between derivative markets, including their structure and function.
- Compare and contrast forward contracts with contingent claims, highlighting their differences and uses.
- Identify the various types of derivatives.
- Discuss the applications of derivatives in hedging, speculation, and arbitrage.
- Evaluate criticisms and potential misuses of derivatives in financial markets.
1.1 What Are Derivatives?
1.1.1 Understanding Derivatives
- A derivative is a financial contract whose value depends on the performance of an underlying asset.
- This underlying asset, referred to as the underlying, may be a stock, currency, interest rate, commodity, or any other marketable item. Its market price is known as the cash or spot price.
- The range of underlying assets encompasses a wide array, including stocks, currencies, commodities, debt instruments, and even non-traditional metrics like weather conditions or insurance claims.
1.1.2 The Significance of Derivatives
Derivatives are pivotal in the financial ecosystem due to their ability to:
- Facilitate risk management by transferring risks between parties.
- Craft unique investment strategies and returns not feasible with direct investments.
- Serve as a source of market insight and future price expectations.
- Offer cost efficiencies in transactions.
- Minimize required capital investment.
- Simplify the process of taking short positions compared to dealing with the underlying directly.
- Enhance the liquidity and operational efficiency of the primary markets they relate to.
1.2 Derivative Markets
Derivatives are traded in two main venues: organized exchanges and over-the-counter (OTC) markets.
1.2.1 Exchange-Traded Derivatives
These derivatives are standardized contracts with fixed features such as contract size, expiration date, and underlying assets. Their trading is guaranteed by a clearing house, which requires participants to post margins. This arrangement ensures transparency and regulation, safeguarding the integrity of the market.
1.2.2 Over-The-Counter (OTC) Derivatives
In contrast, OTC derivatives offer customization in terms of contract size, asset specification, and expiration dates. This flexibility, however, comes with a higher risk of default (credit risk) for the parties involved.
The OTC Market Evolution
Prior to 2008: The OTC market was largely unregulated, with banks serving as the primary market makers. Transactions were governed by master agreements, and some were cleared through central counterparties (CCPs), similar to clearing houses.
Since 2008: Significant regulatory changes have been implemented to reduce systemic risk and enhance transparency. Standardized OTC transactions must now be cleared through CCPs, and all trades are required to be reported to a central repository. These measures aim to bolster market stability and integrity.
The bankruptcy of Lehman Brothers on September 15, 2008, stands as the largest in U.S. history. Lehman Brothers was heavily involved in the over-the-counter (OTC) derivatives market, engaging in high-risk financial activities. The firm’s inability to refinance its short-term debt ultimately led to its downfall. At the time of its bankruptcy, Lehman Brothers had an extensive network of transactions, with hundreds of thousands outstanding across approximately 8,000 counterparties. The process of unwinding these transactions has posed significant challenges for both the Lehman liquidators and the involved counterparties, illustrating the complex and interconnected nature of modern financial markets.
1.3 Forward Contracts vs. Contingent Claims
Both forward contracts and contingent claims are essential financial instruments that derive their value from the performance of an underlying asset, playing pivotal roles in the global financial markets for hedging, speculation, and arbitrage.
1.3.1 Forward Commitments
Forward commitments are agreements to buy or sell an asset at a predetermined future date and price. They include:
Forward Contracts: Private, non-standardized agreements between two parties to buy or sell an asset at a specified future time at a price agreed upon at the contract’s initiation.
Futures Contracts: Standardized forward contracts traded on organized exchanges that require the posting of a margin. Futures contracts are marked to market daily, which mitigates credit risk.
Swaps: Agreements between two parties to exchange sequences of cash flows for a set period based on a specified principal amount. Swaps often involve the exchange of a fixed interest rate for a floating rate, or vice versa.
1.3.2 Contingent Claims
Contingent claims are financial instruments that offer the holder the right, but not the obligation, to buy or sell an asset at a predetermined price within a specified timeframe. The primary form of contingent claims is:
- Options: Contracts that give the buyer the right, but not the obligation, to buy (call option) or sell (put option) an underlying asset at a specified strike price on or before a certain date. Options are of two types: European options, which can be exercised only at expiration, and American options, which can be exercised at any time before expiration.
1.3.3 Key Differences and Risks
Obligation vs. Right: A forward contract represents an obligation to carry out the transaction, potentially leading to large losses depending on the market’s movement. In contrast, a contingent claim like an option provides a right, limiting the buyer’s potential loss to the premium paid for acquiring this right.
Risk Profile: The potential loss on a long forward contract can equal the full contract price, while for a short position, the loss can be theoretically infinite due to the asset’s price potential to rise indefinitely. Conversely, the risk of a contingent claim is limited to the premium paid, providing a risk-averse strategy for speculators and hedgers.
Uses and Applications: Forward contracts and futures are commonly used for hedging against price movements in commodities, currencies, and interest rates. Swaps are utilized for managing interest rate risk and currency exposure. Options are employed for hedging, speculative trading, and income generation through premium collection.
Incorporating these instruments into investment and risk management strategies requires an understanding of their mechanics, risks, and market behavior. Their usage reflects the financial goals, risk tolerance, and market outlook of the participants, illustrating the complexity and diversity of modern financial markets.
1.4 Types of Derivatives
1.4.1 Forward Contract
A forward contract is a customized, over-the-counter derivative agreement between two parties, where the buyer agrees to purchase, and the seller agrees to sell, an underlying asset at a predetermined future date and price established at the contract’s inception.
- Long Position: The party committing to purchase the asset.
- Short Position: The party committing to sell the asset.
Characteristics of Forward Contracts
- Underlying Asset: Specifies the type and quantity of the asset to be traded.
- Settlement Method: Describes how the contract will be executed or settled upon expiration.
- Forward Price: The agreed-upon price for the underlying asset exchange, designed to make the contract’s initial value zero.
Key Points
- Popularity in Foreign Exchange: Forward contracts are frequently used for hedging in the foreign exchange markets.
- OTC Markets: Typically involves at least one financial institution, allowing for customization but lacking centralized regulation.
- Flexibility and Risk Management: Forward contracts offer tailored solutions for specific hedging needs, particularly in markets lacking standardized instruments. This customization enables precise risk management tailored to the parties’ unique requirements.
- Market Dynamics and Pricing: The determination of forward prices is influenced by various factors, including the underlying asset’s current price, interest rates, and the asset’s expected future price volatility. This dynamic pricing mechanism reflects the market’s consensus on future price movements, adjusted for the time value of money.
1.4.2 Futures Contract
A futures contract is a standardized derivative traded on futures exchanges, like the CME Group or Intercontinental Exchange, facilitating the buying and selling of underlying assets at future dates.
Futures and Liquidity: Futures contracts provide liquidity and price discovery in a regulated environment, offering a transparent and efficient means for market participants to hedge against price volatility or speculate on future price movements.
Forwards vs. Futures
Forwards | Futures |
---|---|
Customized terms, traded over-the-counter. | Standardized terms, traded on regulated exchanges. |
Counterparty risk, with less regulatory oversight. | Mitigated counterparty risk through clearinghouses. |
Settlement occurs at contract maturity. | Daily mark-to-market settlement. |
1.4.3 Swap Contract
A swap is an OTC derivative where two parties exchange cash flow series, addressing multi-period risks. Unlike a forward contract focusing on a single-period risk, swaps often manage interest rate, currency, or commodity exposure over extended periods.
Swaps can be structured in numerous ways to suit different types of risk management strategies. For example, interest rate swaps exchange fixed for floating interest rate payments to manage interest rate risk, while currency swaps exchange cash flows in different currencies to hedge against currency risk.
1.4.4 Options
Options are versatile financial derivatives allowing the holder to buy (call option) or sell (put option) an underlying asset at a predetermined price (strike price) within a specific timeframe. The buyer of the option pays a premium to the seller or writer for this right, without the obligation to execute the transaction.
Types of Options
Call Options: Grant the holder the right to purchase the underlying asset at the strike price. Investors buy calls when they anticipate the underlying asset’s price will increase.
Put Options: Provide the holder the right to sell the underlying asset at the strike price. Puts are purchased when an investor expects the underlying asset’s price to decline.
Exercise Styles
American Options: These can be exercised at any point up to and including the expiration date, offering maximum flexibility to the holder.
European Options: Can only be exercised on the expiration date itself, limiting the timing of execution to this single moment.
1.5 Applications of Derivatives
1.5.1 Hedging
Hedging is a strategic financial practice aimed at reducing potential risks and mitigating financial exposure. Its core purpose is to minimize risk, though it does not assure a more favorable outcome. This strategy employs various financial instruments, such as forward and option contracts, each with distinct characteristics and uses.
Forward contracts are pivotal in risk management, enabling the hedger to lock in a future transaction price for an underlying asset, thereby neutralizing the risk of adverse price fluctuations. This fixed-price agreement ensures predictability in financial planning.
Option contracts, on the other hand, serve as a form of financial insurance. They grant investors the right, but not the obligation, to buy (call option) or sell (put option) an underlying asset at a predetermined price (strike price) within a specific timeframe. This mechanism allows investors to safeguard against potential adverse price movements while preserving the opportunity to capitalize on favorable price changes. Unlike forward contracts, acquiring an option requires paying an upfront premium, which represents the cost of the protection offered.
Examples to Illustrate Hedging
Consider a U.S. company that anticipates a payment of GBP 10 million for imports from Britain in three months. To hedge against the risk of GBP appreciating against USD, the company can enter into a long position in a forward contract. By doing so, it secures a fixed exchange rate for the future payment, thus avoiding the uncertainty of currency fluctuations.
An investor holding 1,000 shares of Microsoft, valued at $28 per share, faces the risk of a potential decrease in share value. To mitigate this risk, the investor can purchase a put option, which provides the right to sell the shares at a strike price of $27.50. For example, if a two-month put option costs $1 per share, the investor would buy 10 contracts (each contract typically covers 100 shares), paying a total premium of $1,000. This strategy protects the investor’s portfolio from a decline below the strike price, while still allowing participation in any upward price movements.
1.5.2 Arbitrage
Arbitrage represents a foundational concept in financial markets, involving the exploitation of price differentials across different markets or forms of an asset to secure risk-free profits. This practice underscores the Law of One Price, which posits that in efficient markets with minimal transaction costs and unrestricted information flow, identical assets should uniformly price.
When disparities arise, arbitrageurs can purchase the undervalued asset in one market and sell it at a higher price in another, leveraging these discrepancies to generate a risk-free return. This activity not only capitalizes on the price differentials but also plays a crucial role in driving the prices of identical assets towards convergence, thus contributing to market efficiency.
Arbitrage serves as a relative valuation method, providing insights into the correct pricing of one asset or derivative in relation to another. It operates under the principle that no two identical assets should exist with different pricing or that equivalent asset combinations yielding the same returns should not vary in price.
The presence and subsequent elimination of arbitrage opportunities are indicative of market efficiency, where markets compensate investors for risks appropriately. However, when arbitrage allows for returns above the risk-free rate without exposure to risk, it challenges the notions of market efficiency by presenting an anomaly of abnormal returns.
Example to Illustrate Arbitrage
Imagine a scenario where a stock is priced at GBP 100 in London and USD 150 in New York, with the current exchange rate being 1.5300 GBP/USD. Purchase the stock for USD 150 in New York, then sell it in London for GBP 100. Convert GBP 100 to USD 153 to secure a profit of USD 3.
1.5.3 Speculation
Speculation in financial markets is driven by the intention to profit from anticipated market movements. Speculators engage in market positions with the expectation that prices will either rise or fall, aiming to capitalize on these predicted changes.
When engaging in futures contracts, speculators face significant risk and reward potential. Futures contracts obligate the purchase or sale of an asset at a predetermined future date and price, exposing the speculator to potentially unlimited losses or gains, depending on market movements.
Conversely, options contracts offer a different risk profile. By purchasing options, a speculator gains the right, but not the obligation, to buy (call option) or sell (put option) an asset at a specified price within a certain period. The maximum loss in this scenario is limited to the premium paid for the options, providing a safety net against adverse market movements.
Examples to Illustrate Speculation
Trading strategies for an investor with $2,000 anticipating a stock price increase:
Buying Shares Outright: If the investor is confident in their prediction and prefers direct exposure, they could use their $2,000 to buy shares of the stock directly. This approach offers unlimited upside potential if the stock price increases but also exposes the investor to potential losses if the price falls.
Buying Call Options: The investor could purchase call options on the stock they believe will increase in value. This strategy allows the investor to control a larger amount of stock with a smaller investment (the premium paid for the options), with the potential for significant gains if the stock price rises as anticipated. The risk is limited to the premium paid.
Futures Contracts: If the investor has access to futures trading and is knowledgeable about its risks, they could engage in a futures contract that bets on the stock price increasing. This strategy requires careful risk management due to the potential for large losses.
1.6 Criticisms and Misuses of Derivatives
Derivatives, while fundamental to risk management and price discovery in financial markets, have faced criticisms and concerns regarding their potential for misuse and the risks they can introduce to the financial system. These criticisms encompass several key areas:
Speculation and Gambling: Derivatives are often utilized for speculative purposes, where investors bet on the direction of market prices with the aim of generating profits. This speculative use can resemble gambling when trades are made based on predictions rather than informed decisions, potentially leading to significant losses.
Systemic Risk and Destabilization: Derivatives can add systemic risk to the financial system, especially when used in large volumes or in complex combinations that are difficult to understand and manage. The interconnectedness of market participants through derivatives can lead to contagion effects, where the failure of one entity can trigger a chain reaction affecting others.
Complexity: The inherent complexity of many derivative products makes them difficult to value and understand, even for sophisticated investors. This complexity can obscure the real risks involved and lead to mispricing or inappropriate use of these instruments.
Role Shifting: Traders and institutions may shift roles between being hedgers, who use derivatives to manage risk, to speculators, who seek to profit from market movements, or from being arbitrageurs, who exploit price discrepancies, to speculators. This shifting can blur the lines between risk management and speculative activities, increasing the potential for losses and systemic risks.
Need for Controls: Given the potential for misuse and the complex nature of derivatives, it is crucial to establish comprehensive controls and regulatory frameworks. These controls should ensure that derivatives are used for their intended purposes, such as hedging risk, rather than for unchecked speculation. Proper oversight, transparent reporting requirements, and clear guidelines for risk assessment and management are essential components of a robust regulatory framework.
To address these criticisms and mitigate the risks associated with derivatives, financial markets and regulatory bodies have implemented measures such as:
Central Clearing Counterparties (CCPs): These entities act as intermediaries for derivative transactions, reducing counterparty risk and increasing transparency.
Margin Requirements: These requirements ensure that parties in derivative contracts have sufficient capital to cover potential losses, reducing the risk of default.
Regulatory Reforms: Post-2008 financial crisis, reforms like the Dodd-Frank Act in the United States and EMIR in Europe have increased oversight and regulation of derivative markets, aiming to improve transparency, reduce systemic risk, and ensure that derivatives fulfill their role in financial markets responsibly.
1.7 Practice Questions and Problems
1.7.1 Time Value of Money
- A bank quotes an interest rate of 7% per annum with quarterly compounding. How much you will earn from $100 investment after (a) 1 year and (b) 3 years? What is the equivalent rate with (a) continuous compounding and (b) annual compounding? Verify your results.
1.7.2 Theoretical Foundations of Derivatives
- Explain carefully the difference between hedging, speculation, and arbitrage.
- What is the difference between the over-the-counter market and the exchange-traded market?
- “Options and futures are zero-sum games.” What do you think is meant by this statement?
- What is the difference between a long forward position and a short forward position?
- What is the difference between entering into a long forward contract when the forward price is $50 and taking a long position in a call option with a strike price of $50?
- Explain carefully the difference between selling a call option and buying a put option.
- When first issued, a stock provides funds for a company. Is the same true of an exchange-traded stock option? Discuss.
1.7.3 Practical Applications of Forwards and Futures
- A trader enters into a short cotton futures contract when the futures price is 50 cents per pound. The contract is for the delivery of 50,000 pounds. How much does the trader gain or lose if the cotton price at the end of the contract is (a) 48.20 cents per pound; (b) 51.30 cents per pound?
- An investor enters into a short forward contract to sell 100,000 British pounds for US dollars at an exchange rate of 1.5000 US dollars per pound. How much does the investor gain or lose if the exchange rate at the end of the contract is (a) 1.4900 and (b) 1.5200?
1.7.4 Practical Applications of Options
- A trader buys a call option with a strike price of $30 for $3. Does the trader ever exercise the option and lose money on the trade. Explain.
- Suppose that you write a put contract with a strike price of $40 and an expiration date in three months. The current stock price is $41 and the contract is on 100 shares. What have you committed yourself to? How much could you gain or lose?
- Suppose you own 5,000 shares that are worth $25 each. How can put options be used to provide you with insurance against a decline in the value of your holding over the next four months?
- You would like to speculate on a rise in the price of a certain stock. The current stock price is $29, and a three-month call with a strike of $30 costs $2.90. You have $5,800 to invest. Identify two alternative strategies, one involving an investment in the stock and the other involving investment in the option. What are the potential gains and losses from each?
1.7.5 Hedging Strategies
- Explain why a futures contract can be used for either speculation or hedging.
- A US company expects to have to pay 1 million Canadian dollars in six months. Explain how the exchange rate risk can be hedged using (a) a forward contract and (b) an option.
- The CME Group offers a futures contract on long-term Treasury bonds. Characterize the investors likely to use this contract.