Investments Chapter 4/Chapter 5
Risk-Return Characteristics of Alternative Investments
- A risk-return tradeoff exists such that for a higher risk one expects a higher return, and vice versa. - In general, low-risk/low-return investments include U.S. government securities and deposit accounts. - In general, high-risk/high-return investments include real estate and other tangible investments, common stocks, options, and futures.
Applying Beta:
- Beta measures the undiversifiable (or market) risk of a security. - Beta reveals how a security responds to market forces: - If the market is expected to increase 10%, a stock with a beta of 1.5 is expected to increase 15%. - If the market went down 8%, a stock with a beta of 0.50 should only decrease by about 4%. - Stocks with betas greater than 1.0 are more responsive than average to market fluctuations and are more risky than average. - Stocks with betas less than 1.0 are less risky than the average stock.
Limitations of CAPM/Beta
- CAPM generally relies on historical data since the value of beta used in the model is typically based on calculations using historical returns. - Betas estimated from historical data may or may not accurately reflect how the company's stock will perform relative to the overall market in the future.
Costs of International Diversification:
- Investment advisers suggest allocations to foreign investments of 20%-30%: - two-thirds of this allocation in established foreign markets. - other one-third in emerging markets. - Transaction costs of buying securities directly on foreign markets tends to be high. - International mutual funds and American Depository Shares (ADSs) allow you to obtain international diversification with low cost, convenience, transactions in U.S. dollars, and protection under U.S. security laws.
Returns Historical Performance
- Provides a basis for future expectations - Does not guarantee future performance
investment in stock or bonds of foreign companies/gov'ts listed on U.S. exchanges
- Yankee Bonds - American Depository Shares (ADSs)
Deriving Beta:
- derived graphically by plotting the coordinates for the market return and security return of a stock at various points in time and using statistical techniques to fit the "characteristic line" to the data points. - Equation for a straight line takes form: y = mx + b - The slope of the line is beta. - m from the equation y = mx + b
Methods of International Diversification
- direct investment abroad - investment in stock or bonds of foreign companies/gov'ts listed on U.S. exchanges - international mutual fund - portfolio of U.S. based multinational corporations
Direct Investment Abroad
- foreign currency investment brings currency exchange risk - less convenient, more expensive, and riskier than investing in U.S
Level of Return: External Forces
- political environment - business environment - economic environment - general level of price changes: inflation/deflation
Simplicity and Practice Appeal of CAPM
- provides a useful conceptual framework for evaluating and linking risk and return. - Important tool for investors. - Widely used in corporate finance: Many surveys show the primary method that companies use to determine the required rate of return on their stock is the CAPM .
Level of Return: Internal Characteristics
- type of investment - quality of the firm's management - whether the firms finances its operations with debt or equity
What is the beta for the overall market
1.0
Risk Premium
Additional return an investor required on a risky investment to compensate for risks based upon issue and issuer characteristics
risk return tradeoff
An investor must have a portfolio of relatively risky investments to earn a relatively high rate of return. - To earn more return, one must bear more risk.
The Efficient Frontier
Any number of possible portfolios could be constructed from the hundreds of investments available at any point in time.
Sources of Risk:
Business Risk Financial Risk Purchasing Power Risk Interest Rate Risk Liquidity Risk Tax Risk Event Risk Market Risk
Time Value of Money
Generally better to receive cash sooner rather than later
Components of Return
Income Capital Gains (or Losses) Total Return
Why Return is Important?
Indicates how rapidly an investor can build wealth.
Which technique should we use?
Recommended portfolio management policy uses aspects of both approaches: - Determine how much risk you are willing to bear. - Seek diversification among different types of securities and across industry lines. - Pay attention to correlation of return between securities. - Use beta to keep portfolio at acceptable level of risk. - Evaluate alternative portfolios to select highest return for the given level of acceptable risk.
Two approaches used to plan and construct portfolios:
The Traditional Approach Modern Portfolio Theory (MPT)
Interest on Interest: The Critical Assumption
Using IRR to measure return assumes that all income earned over the investment horizon is reinvested at the same rate as the original investment
Steps in the Decision Process: Combining Return and Risk
When you are deciding among alternative investments, you should take the following steps to combine return and risk: - Estimate the expected return using present value methods and historical or projected return data - Assess the risk of the investment by looking at historical/projected returns using standard deviation. - Evaluate the risk-return characteristics of each investment option to make sure the return is reasonable given the level of risk. - Select the investments that offer the highest expected returns associated with the level of risk you are willing to accept.
What does the positive or negative sign in from to the beta indicate?
Whether the stock's return moves in the same direction as the general market (positive beta) or in the opposite direction (negative beta) - Most stocks have betas that fall between .50 and 1.75
Standard Deviation (risk) of a portfolio's return
a function of the portfolio's individual assets' weights, standard deviations, and correlations with all other assets.
Capital Asset Pricing Model (CAPM)
a model that uses beta to qualify the relation between risk and return for different investments
beta
a number that quantifies undiversifiable risk, indicating how the security's return responds to fluctuations in market returns.
Correlation
a statistical measure of the relationship between two series of numbers
Portfolio return is calculated as...
a weighted average of returns on the assets that make up the portfolio.
Standard Deviation
an indicator of an asset's risk, it measure the dispersion (variation) of returns around an asset's average or expected return
Yankee Bonds
bonds issued in the U.S. bond market by a foreign entity
Income
cash that investors periodically receive as a result of owning an investment
Portfolio
collection of investments assembled to meet one or more investment goals
Risk-indifferent (risk-neutral)
describes an investor who does not require a change in return as compensation for greater risk
Risk-averse
describes an investor who requires greater return in exchange for greater risk
risk-seeking
describes an investor who will accept a lower return in exchange for greater risk
Income-oriented portfolio
designed to produce regular dividends and interest payments
Traditional portfolio management
emphasizes balancing the portfolio by assembling a wide variety of stocks and/or bonds
Security Market Line (SML)
graphically shows the expected return (y-acis) for any security given its beta (x-axis)
Realized Return
income received by the investor during the investment period
Indifference curves
indicate for a given level of utility (satisfaction), the set of risk-return combinations about which an investor would be indifferent.
Issuer Characteristics
industry and company factors
correlation coefficient
measures the degree of correlations, whether positive or negative
Real Rate of Return
measures the increase in purchasing power that the investment provides
Event Risk
occurs when an unexpected event has a significant and unusually immediate effect on the underlying value of an investment
Effectiveness of International Diversification
offers more diverse investment alternatives the U.S. only based investing
Satisfactory Investment
one for which the present value of benefits (discounted at the appropriate discount rate) equals or exceeds the present value of its costs
relevant risk
only relevant risk is that which is undiversifiable given an investor can create a portfolio of assets that will eliminate virtually all diversifiable risk.
Holding Period
period of time over which one wishes to measure the return on an investment
Efficient frontier
portfolios that provide the best tradeoff between risk and return - Portfolios that fall below the frontier are not desirable because portfolios on the frontier offer higher returns for the same risk level - Portfolios that fall to the left are not feasible/available
Growth-oriented portfolio
primary goal is long-term price appreciation
Risk free rate
rate of return that can be earned on a risk-free investment, such as short-term U.S. Treasury Bill
Fully compounded Rate of Return
rate of return that includes interest earned on interest
Risk Diversification
recommend holding 40 or more carefully selected securities to achieve efficient diversification
Diversifiable (unsystematic) risk
results from factors that are firm specific. ex. whether a new product succeeds or fails, the performance of senior managers, or a firms' relationship with its customers and suppliers
Expected Return
return an investor thinks an investment will earn in the future; determines what an investor is willing to pay for an investment or if they are willing to make an investment
perfectly positively correlated
series with a correlation coefficient of +1.0
perfectly negatively correlated
series with a correlation coefficient of -1.0
Feasible (attainable) set
set of all possible portfolio combinations if the risk and return of each were plotted on a graph
total risk
sum of undivserifiable and diversifiable risk
The Traditional Approach -
tends to focus on well-known companies - perceived as less risky - stocks are more liquid and available - familiarity provides higher comfort levels for investors - "window dressing"
the portfolio beta (bp)
the beta of a portfolio, calculated as the weighted average of the betas of the individual assets in the portfolio. - interpreted exactly the same way as individual stock betas
Paper Return
the capital gain or loss that has been achieved but not yet realized (no sale has taken place)
Tax Risk
the chance that Congress will make unfavorable changes in tax laws, driving down the after-tax returns and market values of certain investments
Interest Rate Risk
the chance that changes in interest rates will adversely affect a security's value
Purchasing Power Risk
the chance that unanticipated changes in price levels (inflation or deflation) will adversely affect investment returns
Rate of Growth
the compound annual rate of change in some financial quantity, such as the price of a stock or the size of its dividend
Business Risk
the degree of uncertainty associated with an investment's earnings and the investment's ability to pay the returns (interest, principal, dividends) that investors expect. - Tied to a firm's industry - Generally, investments from similar kinds of firms have similar business risk - Differences in management, costs, and location can cause variation
Capital Gains (or Losses)
the difference between the proceeds from the sale of an investment and its original purchase price
Internal Rate of Return
the discount rate that equates an investment's cost to the present value of the benefits that it provides for the investor
Financial Risk
the increased uncertainty that results when a firm borrows money
Undiversifiable (systemic) risk
the inescapable portion of an investment's risk that remains even if a portfolio is well diversified. - associated with broad forces such as economic growth, inflation, interest rates, and political views - also called market risk
Return
the level of profit from an investment - that is, the reward for investing
Optimal portfolio
the point at which an investor's highest possible indifference curve is tangent to the efficient frontier represents the highest level of satisfaction the investor can achieve given the available set of portfolios.
Expected inflation premium
the rate of inflation expected over an investment's life
Reinvestment Rate
the rate of return earned on interest or other income received from an investment over its investment horizon
Required Return
the rate of return that fully compensates for an investment's risk
Risk-Return Tradeoff
the relationship between risk and return in which investors want to obtain the highest possible return for the level of risk that they are willing to take
Risk-free rate
the return an investor can earn on a risk-free investment such as a U.S. treasury bill or an insured money market deposit account. - As the risk of an investment portfolio increases from 0, the return provided should increase above the risk-free rate.
Nominal Rate of Return
the return that the investment earns expressed in current dollars. It does not take into account the effects of inflation
Liquidity Risk
the risk of not being able to sell an investment quickly without reducing its price
Market Risk
the risk that investment returns will decline because of factors that affect the broader market, not just one company or one investment
Total Return
the sum of the income and the capital gain (loss) earned on an investment over a specified period of time
Risk
the uncertainty surrounding the actual return that an investment will generate
Holding Period Return (HPR)
total return earned from holding an investment for a specified time ( the holding period); usually one year or less. Offers a relative comparison, by dividing the total return by the amount of the investment.
uncorrelated
two series bear no relationship to each other
negatively correlations
two series tend to move in opposite directions
Positively correlated
two series tend to move in the same direction
Issue Characteristics
type, maturity and features
interindustry diversification
typical emphasis uses securities of companies from a broad range of industries to diversify the portfolio.
Efficient portfolio
ultimate goal; one that provides the highest return for a given risk level; requires search for investment alternatives to get the best combinations of risk and return.
Modern Portfolio Theory
uses several basic statistical measures to develop a portfolio plan from: - expected returns - standard deviations - correlations Uses these measures among many combinations of investments to find an optimal portfolio. Maximum benefits of diversification occur when investors find securities that are relatively uncorrelated and combine them in the portfolio.
If PV of the benefits = costs...
you earn a rate equal to the discount rate
If PV of the benefits exceeds costs...
you earn a rate of return greater than the discount rate
If PV of the benefits is less than the costs....
you earn a rate of return less than the discount rate