Risk Management and Financial Modelling
Expert-defined terms from the Graduate Certificate in Finance and Sustainability course at London School of International Business. Free to read, free to share, paired with a globally recognised certification pathway.
**Alpha (α)** #
**Alpha (α)**
: A measure of an investment's excess return relative to the benchmark index or… #
A positive alpha indicates that the investment has outperformed its benchmark, while a negative alpha indicates underperformance. Alpha is a key component of the Capital Asset Pricing Model (CAPM) and is often used to evaluate the performance of portfolio managers.
**Beta (β)** #
**Beta (β)**
: A measure of an investment's systematic risk or sensitivity to market movement… #
A beta of 1 indicates that the investment's price will move in line with the market, while a beta less than 1 indicates lower volatility and a beta greater than 1 indicates higher volatility. Beta is a key component of the Capital Asset Pricing Model (CAPM) and is used to calculate the expected return on an investment.
**Capital Asset Pricing Model (CAPM)** #
**Capital Asset Pricing Model (CAPM)**
: A financial model used to determine the expected return on an investment, base… #
The CAPM is widely used in finance to evaluate the performance of portfolio managers and to price securities.
**Correlation** #
**Correlation**
: A statistical measure that describes the degree to which two variables move in… #
A positive correlation indicates that the variables move in the same direction, while a negative correlation indicates that they move in opposite directions. Correlation is a key concept in risk management and financial modeling, as it is used to measure the relationship between different investments and to construct diversified portfolios.
**Covariance** #
**Covariance**
: A statistical measure of the degree to which two variables vary together #
Covariance is similar to correlation, but it is not standardized and is measured in the same units as the variables being studied. Covariance is used in financial modeling to measure the risk of a portfolio, as it takes into account the relationships between the individual investments in the portfolio.
**Derivative** #
**Derivative**
: A financial instrument that derives its value from an underlying asset, such a… #
Derivatives can be used for hedging or speculating, and include options, futures, and swaps.
**Diversification** #
**Diversification**
: The process of allocating investments among different asset classes, sectors,… #
Diversification is a key concept in risk management and financial modeling, as it helps to smooth out the performance of a portfolio and to reduce the impact of any one investment on the overall portfolio return.
**Expected Return** #
**Expected Return**
: The average return on an investment, calculated by multiplying the probability… #
The expected return is a key concept in financial modeling, as it is used to evaluate the performance of different investments and to make decisions about portfolio allocation.
**Expected Value** #
**Expected Value**
: The weighted average of all possible outcomes, calculated by multiplying each… #
Expected value is a key concept in financial modeling, as it is used to make decisions about investments and to evaluate the risks and rewards of different options.
**Factor Analysis** #
**Factor Analysis**
: A statistical technique used to identify the underlying factors that drive the… #
Factor analysis is used in financial modeling to identify the sources of risk and return in a portfolio, and to construct portfolios that are optimally balanced in terms of these factors.
**Fama #
French Three-Factor Model**
: A financial model that extends the Capital Asset Pricing Model (CAPM) by addin… #
The Fama-French model is used to explain the returns of small-cap and value stocks, which are not fully captured by the CAPM.
**Historical Simulation** #
**Historical Simulation**
: A method of estimating the value at risk (VaR) of a portfolio by simulating th… #
Historical simulation is a simple and intuitive method of VaR estimation, but it assumes that the future will be similar to the past, which may not always be the case.
**Modern Portfolio Theory (MPT)** #
**Modern Portfolio Theory (MPT)**
: A financial theory that suggests that it is possible to construct a portfolio… #
MPT is based on the concept of diversification and the idea that different investments have different risk and return characteristics.
**Monte Carlo Simulation** #
**Monte Carlo Simulation**
: A method of estimating the value at risk (VaR) of a portfolio by simulating th… #
Monte Carlo simulation is a more sophisticated method of VaR estimation than historical simulation, as it takes into account the uncertainty and randomness of financial markets.
**Portfolio Management** #
**Portfolio Management**
: The process of selecting and managing a portfolio of investments in order to a… #
Portfolio management is a key concept in finance, as it is used to make decisions about the allocation of resources, the selection of investments, and the monitoring of performance.
**Risk** #
**Risk**
: The possibility of loss or negative consequences, such as the loss of capital,… #
Risk is a key concept in finance, as it is used to evaluate the potential rewards and drawbacks of different investments and to make decisions about portfolio allocation.
**Risk Management** #
**Risk Management**
: The process of identifying, assessing, and mitigating the risks associated wit… #
Risk management is a key function of finance, as it is used to protect the value of investments and to ensure the stability and sustainability of financial systems.
**Scenario Analysis** #
**Scenario Analysis**
: A method of estimating the value at risk (VaR) of a portfolio by simulating sp… #
Scenario analysis is a more sophisticated method of VaR estimation than historical simulation, as it takes into account specific risks and events that may affect the portfolio.
**Value at Risk (VaR)** #
**Value at Risk (VaR)**
: A statistical measure of the potential loss in the value of a portfolio over a… #
VaR is a key concept in risk management, as it is used to evaluate the risks and rewards of different investments and to make decisions about portfolio allocation.
**Volatility** #
**Volatility**
: A measure of the variability or uncertainty of the returns of an investment #
Volatility is often measured using the standard deviation of returns, and is a key concept in risk management and financial modeling, as it is used to evaluate the risks and rewards of different investments and to make decisions about portfolio allocation.
**Yield Curve** #
**Yield Curve**
: A graph that shows the relationship between interest rates and the time to mat… #
The yield curve is a key concept in finance, as it is used to evaluate the performance of different bonds and to make decisions about portfolio allocation. A normal yield curve slopes upward, indicating that longer-term bonds have higher yields than shorter-term bonds, while an inverted yield curve slopes downward, indicating that shorter-term bonds have higher yields than longer-term bonds. A flat yield curve indicates that there is little difference in yield between short- and long-term bonds.