Investment Analysis
Expert-defined terms from the Investment Portfolio Analysis course at London School of Business and Administration. Free to read, free to share, paired with a professional course.
Alpha – The excess return of an investment relative to a benchmark index #
Related terms: Beta, Sharpe Ratio, Market‑adjusted return. Example: A mutual fund that earns 12% when the S&P 500 returns 8% has an alpha of 4%. Challenge: Isolating true alpha from luck or data‑snooping bias.
Arbitrage Pricing Theory (APT) – A multi‑factor model that explains asset… #
Related terms: Factor model, Systematic risk, Regression analysis. Example: Using inflation, GDP growth, and interest rates to estimate expected return of a corporate bond. Challenge: Identifying appropriate factors and measuring their sensitivities accurately.
Asset Allocation – The process of dividing a portfolio among different as… #
g., equities, fixed income, real estate). Related terms: Strategic allocation, Tactical allocation, Diversification. Example: A 60/30/10 split between stocks, bonds, and commodities. Challenge: Balancing long‑term objectives with short‑term market fluctuations.
Beta – A measure of an asset’s volatility relative to the market; indicat… #
Related terms: Alpha, CAPM, Market beta. Example: A stock with beta 1.3 tends to move 30% more than the overall market. Challenge: Beta can change over time and may not capture non‑linear risk exposures.
Black‑Scholes Model – A mathematical formula for pricing European‑style o… #
Related terms: Option pricing, Implied volatility, Greeks. Example: Valuing a call option on a tech stock. Challenge: Assumes constant volatility and log‑normal price distribution, which may not hold in practice.
Bond Duration – The weighted average time to receive cash flows from a bo… #
Related terms: Modified duration, Convexity, Yield curve. Example: A 5‑year bond with a duration of 4.2 years will lose approximately 4.2% in value if rates rise by 1%. Challenge: Duration is an approximation; convexity must be considered for large rate moves.
Capital Asset Pricing Model (CAPM) – Calculates expected return as risk‑f… #
Related terms: Systematic risk, Market portfolio, Security Market Line. Example: If risk‑free rate is 2%, market premium 6%, and beta 1.5, expected return = 2% + 1.5×6% = 11%. Challenge: Real‑world markets often violate CAPM assumptions (e.g., investor homogeneity).
Cash Flow Forecasting – Estimating future cash inflows and outflows to as… #
Related terms: Discounted cash flow, Pro forma statements, Sensitivity analysis. Example: Projecting cash flows for a new factory over ten years. Challenge: Uncertainty in revenue growth, cost inflation, and regulatory changes.
Clustering Analysis – Statistical technique that groups assets with simil… #
Related terms: K‑means, Hierarchical clustering, Portfolio construction. Example: Grouping technology stocks that move together. Challenge: Determining the optimal number of clusters and ensuring stability over time.
Cost of Capital – The weighted average cost of all financing sources (deb… #
Related terms: WACC, Hurdle rate, Opportunity cost. Example: A firm with 30% equity at 8% cost and 70% debt at 4% cost has a WACC of 5.2%. Challenge: Estimating market risk premiums and adjusting for tax shields.
Credit Spread – The yield difference between a corporate bond and a risk‑… #
Related terms: Yield curve, Default risk, Z‑score. Example: A BBB‑rated bond yielding 5% versus a Treasury at 2% has a credit spread of 3%. Challenge: Spreads can widen sharply during market stress, affecting valuation.
Cross‑Sectional Regression – Analyzes the relationship between asset retu… #
Related terms: Fama‑French factors, Panel data, Time series regression. Example: Regressing stock returns on size and book‑to‑market ratios for a given quarter. Challenge: Potential omitted variable bias and multicollinearity.
Currency Risk – The risk that changes in exchange rates will affect the v… #
Related terms: Hedging, Forward contracts, FX exposure. Example: A U.S. investor holding European equities faces risk if the euro depreciates against the dollar. Challenge: Hedging costs and imperfect correlation between currency and asset returns.
Dark Pool – Private trading venues where large orders are executed withou… #
Related terms: Block trade, Liquidity, Trade‑through. Example: An institutional investor routing a $200 million equity purchase through a dark pool. Challenge: Lack of transparency may lead to information asymmetry and regulatory scrutiny.
Discounted Cash Flow (DCF) Model – Valuation method that projects future… #
Related terms: Net present value, Terminal value, Sensitivity analysis. Example: Valuing a software startup by forecasting free cash flow for five years and applying a terminal growth rate. Challenge: Small changes in discount rate or cash‑flow assumptions can dramatically alter valuation.
Dividend Discount Model (DDM) – Estimates a stock’s value as the present… #
Related terms: Gordon growth model, Payout ratio, Yield. Example: A firm paying a $2 dividend with 5% growth and a required return of 10% yields a price of $40. Challenge: Not applicable to firms that do not pay dividends or have irregular payout policies.
Efficient Frontier – The set of optimal portfolios offering the highest e… #
Related terms: Mean‑variance optimization, Risk‑return trade‑off, Portfolio variance. Example: Plotting portfolios of stocks and bonds to identify the curve where no other portfolio has better return for the same volatility. Challenge: Estimation error in expected returns and covariances can shift the frontier.
Emerging Market Risk – Additional uncertainties associated with investing… #
Related terms: Sovereign risk, Country risk premium, Frontier markets. Example: Investing in a Brazilian equity fund exposes investors to currency devaluation and policy shifts. Challenge: Limited historical data and rapidly changing macro‑economic conditions.
Ex‑Post vs #
Ex‑Ante Returns – Ex‑post refers to realized historical returns; ex‑ante denotes expected future returns. Related terms: Historical performance, Forecasting, Risk‑adjusted return. Example: An ex‑post Sharpe ratio of 0.8 based on past data versus an ex‑ante estimate of 0.9 using forward‑looking assumptions. Challenge: Ex‑ante estimates are prone to model risk and optimism bias.
Factor Investing – Strategy that targets specific drivers of return, such… #
Related terms: Smart beta, Multi‑factor model, Risk premia. Example: A portfolio overweighting high‑momentum stocks. Challenge: Factor performance can be cyclical, and factor exposure may unintentionally increase other risks.
Financial Leverage – The use of borrowed capital to increase the potentia… #
Related terms: Debt‑to‑equity ratio, Gearing, Interest coverage. Example: A company financing a project with 70% debt to boost equity returns. Challenge: Higher leverage amplifies losses and raises bankruptcy risk during downturns.
Forward Rate Agreement (FRA) – A contract that locks in an interest rate… #
Related terms: Interest rate swap, Futures, Hedging. Example: An institution agreeing to pay LIBOR + 0.5% for a six‑month loan starting in three months. Challenge: Counterparty risk and basis risk if actual rates diverge from the agreed forward.
Fundamental Analysis – Evaluating securities by examining economic, finan… #
Related terms: Valuation ratios, Earnings forecasts, Industry analysis. Example: Assessing a retailer’s profitability, competitive position, and macro‑economic trends before buying its stock. Challenge: Requires extensive data collection and may be subjective.
GARP (Growth at a Reasonable Price) – Investment approach that seeks comp… #
Related terms: PEG ratio, Value investing, Growth investing. Example: Selecting a tech firm with a PEG of 1.2, indicating modest growth relative to its price. Challenge: Determining the “reasonable” price threshold can be ambiguous.
Geographic Diversification – Spreading investments across different regio… #
Related terms: Currency exposure, Regional ETFs, Political risk. Example: Holding assets in North America, Europe, and Asia to mitigate the impact of a regional recession. Challenge: Correlation among global markets can increase during crises, limiting diversification benefits.
Growth Stock – A company expected to grow earnings above the market avera… #
Related terms: Price‑to‑earnings ratio, Revenue growth, Valuation premium. Example: A biotech firm with 30% annual revenue growth. Challenge: High valuations may be unsustainable, leading to sharp price corrections.
Hedging – Using financial instruments to offset potential losses in an in… #
Related terms: Futures, Options, Swaps. Example: An exporter buying a forward contract to lock in the exchange rate for future sales. Challenge: Hedging incurs costs and may reduce upside potential.
Holding Period Return (HPR) – The total return earned on an investment ov… #
Related terms: Annualized return, Time‑weighted return, Money‑weighted return. Example: Buying a bond for $1,000, receiving $30 interest, and selling for $1,050 after one year yields an HPR of 8%. Challenge: Comparing HPRs across different holding periods requires proper annualization.
Implied Volatility (IV) – The market’s forecast of a security’s volatilit… #
Related terms: Black‑Scholes, Volatility smile, Vega. Example: An option with a high IV suggests traders expect large price swings. Challenge: IV reflects market sentiment, not actual future volatility, and can be influenced by supply‑demand imbalances.
Interest Rate Risk – The risk that changes in interest rates will affect… #
Related terms: Duration, Convexity, Yield curve. Example: A 10‑year Treasury loses value when the Federal Reserve raises rates. Challenge: Managing exposure across a portfolio with bonds of varying maturities and coupons.
Intrinsic Value – The true or fundamental worth of an asset based on disc… #
Related terms: Fair value, Market price, Valuation gap. Example: A stock trading at $45 while its DCF analysis suggests $55 indicates a potential buying opportunity. Challenge: Estimations rely on assumptions that can be highly uncertain.
Jensen’s Alpha – The risk‑adjusted performance measure that compares actu… #
Related terms: Alpha, Sharpe ratio, Market model. Example: A fund with a Jensen’s alpha of 2% outperforms the benchmark after accounting for beta. Challenge: Requires accurate estimation of market risk premium and beta.
Kurtosis – A statistical measure of the “tailedness” of a return distribu… #
Related terms: Skewness, Normal distribution, Tail risk. Example: Asset returns with kurtosis of 5 exhibit fatter tails than a normal distribution (kurtosis = 3). Challenge: High kurtosis complicates risk models that assume normality.
Liquidity Risk – The risk that an asset cannot be bought or sold quickly… #
Related terms: Market depth, Bid‑ask spread, Turnover. Example: Selling a small‑cap stock during a market crash may force a steep discount. Challenge: Liquidity can evaporate abruptly during systemic events.
Long‑Short Strategy – An investment approach that takes long positions in… #
Related terms: Market neutral, Hedge fund, Beta neutrality. Example: Buying a growth stock while shorting a similar sector’s laggard. Challenge: Short‑selling costs, borrowing constraints, and potential for unlimited losses on the short side.
Macro‑Economic Indicator – Data points that reflect the overall health of… #
Related terms: Leading indicator, Lagging indicator, Business cycle. Example: Rising CPI may signal upcoming interest‑rate hikes, influencing bond prices. Challenge: Indicators are often released with lag and can be revised, leading to misinterpretation.
Monte Carlo Simulation – A computational technique that uses random sampl… #
Related terms: Scenario analysis, Stochastic modeling, VaR. Example: Simulating 10,000 possible portfolio paths to estimate the probability of achieving a target retirement balance. Challenge: Results depend heavily on input assumptions for volatility and correlation.
Noise Trader – Market participants who trade on irrational or non‑fundame… #
Related terms: Behavioral finance, Market inefficiency, Herding. Example: A sudden surge in a stock’s price due to viral social‑media hype rather than earnings news. Challenge: Identifying and exploiting noise without becoming a victim of the same sentiment.
Option Greeks – Sensitivities that measure how option price changes with… #
Related terms: Implied volatility, Hedging, Sensitivity analysis. Example: Delta of 0.6 means the option price will move $0.60 for a $1 change in the underlying stock. Challenge: Greeks are dynamic; managing a portfolio of options requires continuous rebalancing.
Performance Attribution – The process of dissecting portfolio returns to… #
g., asset allocation, security selection). Related terms: Brinson model, Benchmark comparison, Return decomposition. Example: Identifying that 70% of excess return came from sector tilt while 30% stemmed from security picking. Challenge: Attribution can be distorted by timing differences and data quality.
Portfolio Turnover – The percentage of a portfolio’s holdings that are re… #
Related terms: Transaction costs, Tax efficiency, Active management. Example: A mutual fund with 80% annual turnover may incur higher costs than a passive index fund. Challenge: High turnover can erode net returns, especially in taxable accounts.
Present Value (PV) – The current worth of a future cash flow discounted a… #
Related terms: Future value, Discount rate, Time value of money. Example: A $1,000 payment due in two years discounted at 5% has a PV of $907. Example: Calculating the PV of a series of dividend payments to value a stock. Challenge: Selecting an appropriate discount rate is often subjective.
Price‑Earnings Ratio (P/E) – A valuation metric that compares a company’s… #
Related terms: Earnings yield, PEG ratio, Valuation multiple. Example: A stock priced at $40 with EPS of $2 has a P/E of 20. Challenge: P/E can be misleading for companies with volatile earnings or negative earnings.
Quantitative Easing (QE) – A monetary policy where a central bank purchas… #
Related terms: Monetary stimulus, Yield curve, Inflation expectations. Example: The Federal Reserve buying Treasury bonds to push yields down, influencing bond prices. Challenge: QE can inflate asset bubbles and complicate exit strategies for policymakers.
Real Options – The application of option‑pricing logic to investment oppo… #
g., expand, abandon) as valuable options. Related terms: DCF, Strategic investment, Option valuation. Example: Valuing the option to delay a mining project until commodity prices improve. Challenge: Modeling real options requires sophisticated assumptions about volatility and decision timing.
Relative Strength Index (RSI) – A momentum oscillator that measures the s… #
Related terms: Overbought, Oversold, Technical analysis. Example: An RSI above 70 may signal that a stock is overbought, while below 30 suggests oversold conditions. Challenge: RSI signals can generate false positives in trending markets.
Risk‑Adjusted Return – A measure that evaluates investment performance re… #
Related terms: Sharpe ratio, Alpha, Volatility. Example: A portfolio with 12% return and 10% volatility has a Sharpe ratio of 1.0 (assuming risk‑free rate of 2%). Challenge: Different ratios emphasize different risk dimensions; selecting the appropriate metric is crucial.
Sector Rotation – The strategy of moving capital among industry sectors b… #
Related terms: Business cycle, Cyclical vs. defensive, Momentum. Example: Shifting from technology to utilities as an economic downturn looms. Challenge: Timing rotations accurately is difficult; misreading signals can lead to underperformance.
Sharpe Ratio – A risk‑adjusted performance metric that divides excess ret… #
Related terms: Risk‑adjusted return, Volatility, Treynor ratio. Example: A fund earning 10% with a 5% standard deviation and a risk‑free rate of 2% has a Sharpe ratio of (10‑2)/5 = 1.6. Challenge: Assumes returns are normally distributed and penalizes upside volatility.
Short‑Selling – The practice of borrowing and selling securities with the… #
Related terms: Covering, Margin call, Short interest. Example: An investor shorts a stock at $50, expecting it to fall to $35, then buys back to close the position. Challenge: Unlimited loss potential if the price rises, and borrowing costs can be high.
Standard Deviation – A statistical measure of the dispersion of returns a… #
Related terms: Volatility, Variance, Risk metric. Example: A portfolio with a 12% average return and a 4% standard deviation is considered less volatile than one with 8% standard deviation. Challenge: Standard deviation treats upside and downside volatility equally, which may not align with investor preferences.
Strategic Asset Allocation – A long‑term, policy‑driven distribution of a… #
Related terms: Rebalancing, Target allocation, Investment policy statement. Example: Maintaining a 70/30 split between equities and bonds over a 30‑year horizon. Challenge: Sticking to the plan during market stress and avoiding short‑term emotional adjustments.
Systematic Risk – The portion of an asset’s risk that cannot be diversifi… #
Related terms: Beta, Market risk, Unsystematic risk. Example: A recession affecting all equities represents systematic risk. Challenge: Measuring and hedging systematic risk often requires derivatives or factor exposure.
Technical Analysis – The study of historical price and volume patterns to… #
Related terms: Chart patterns, Moving averages, Momentum indicators. Example: Using a 200‑day moving average crossover to signal a bullish trend. Challenge: Critics argue that technical analysis may reflect self‑fulfilling prophecies rather than fundamental value.
Time‑Weighted Rate of Return (TWRR) – A performance measure that eliminat… #
Related terms: Money‑weighted return, IRR, Performance measurement. Example: Calculating TWRR for a portfolio that receives contributions and withdrawals throughout the year. Challenge: Requires precise sub‑period calculations and can differ markedly from money‑weighted returns.
Treynor Ratio – A risk‑adjusted performance metric that divides excess re… #
Related terms: Sharpe ratio, Alpha, Systematic risk. Example: A fund with 9% excess return and beta of 1.2 yields a Treynor ratio of 7.5% (9%/1.2). Challenge: Relies on accurate beta estimation and assumes the market portfolio is the appropriate benchmark.
Unsystematic Risk – The portion of risk specific to a particular company… #
Related terms: Idiosyncratic risk, Diversification, Specific risk. Example: A product recall affecting a single firm’s stock price. Challenge: Identifying and quantifying unsystematic risk requires detailed firm‑level analysis.
Value Investing – An approach that seeks securities priced below their in… #
Related terms: Margin of safety, Graham‑Dodd, Contrarian investing. Example: Purchasing a utility stock trading at a P/E of 8 when its fair value suggests a P/E of 12. Challenge: Value traps can arise when low prices reflect fundamental deterioration rather than temporary mispricing.
Volatility Smile – A pattern where implied volatility varies with strike… #
Related terms: Implied volatility, Option pricing, Skew. Example: At-the‑money options may show 15% IV, while far OTM options display 25% IV. Challenge: Modeling the smile requires advanced option‑pricing techniques beyond Black‑Scholes.
Weighted Average Cost of Capital (WACC) – The average rate a company is e… #
Related terms: Cost of equity, Cost of debt, Hurdle rate. Example: A firm with 40% equity at 10% cost and 60% debt at 5% cost (after tax) has a WACC of 7%. Challenge: Accurate estimation of market risk premium and tax effects is critical.
Yield Curve – A graph plotting interest rates of bonds having equal credi… #
Related terms: Term structure, Spread, Inversion. Example: An upward‑sloping curve indicates higher rates for longer maturities, reflecting expectations of economic growth. Challenge: Curve inversions can signal recessions, but timing the market based on the curve is uncertain.
Zero‑Coupon Bond – A bond that does not pay periodic interest; instead, i… #
Related terms: Discount bond, Duration, Yield to maturity. Example: A $1,000 zero‑coupon bond purchased for $600 will mature at $1,000, delivering a 6.7% annualized return over ten years. Challenge: Sensitive to interest‑rate changes and may have tax implications on accrued interest.