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Questions and Answers
Which of the following is a feature of Value-at-Risk (VaR) as a risk metric?
Which of the following is a feature of Value-at-Risk (VaR) as a risk metric?
- Difficult to interpret
- Measures the potential upside of a portfolio
- Can only be compared within the same market
- Applies to all activities and types of risk (correct)
What does a downside/quantile risk metric focus on?
What does a downside/quantile risk metric focus on?
- Risk factor sensitivities
- Returns falling short of a target return (correct)
- Returns exceeding a target return
- Good risk
What is the definition of the α-quantile of a continuous random variable X?
What is the definition of the α-quantile of a continuous random variable X?
- The minimum value of X
- The maximum value of X
- The average value of X
- The value of X below which α% of the distribution falls (correct)
What is the range of α for the α-quantile of a continuous random variable X?
What is the range of α for the α-quantile of a continuous random variable X?
What does VaR measure in terms of risk factor sensitivities?
What does VaR measure in terms of risk factor sensitivities?
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Study Notes
Value-at-Risk (VaR) Features
- VaR is a statistical measure used to assess the level of financial risk within a firm or portfolio over a specific time frame.
- It provides a quantifiable figure representing potential losses in normal market conditions, defined at a certain confidence level (e.g., 95% or 99%).
Downside/Quantile Risk Metric Focus
- Downside risk metrics, like VaR, focus on potential losses rather than overall volatility or upside risks.
- They measure the probability of extreme adverse price movements and are particularly important for risk-averse investors.
Definition of α-Quantile
- The α-quantile of a continuous random variable X is the value below which a given percentage α of observations fall.
- It effectively separates the lowest α proportion of the data from the remainder.
Range of α for α-Quantile
- The range of α for calculating the α-quantile is between 0 and 1 (0 ≤ α ≤ 1).
- An α of 0.5 would represent the median, while α values closer to 0 represent lower quantiles and those closer to 1 represent higher quantiles.
VaR and Risk Factor Sensitivities
- VaR measures the risk factor sensitivities by evaluating how a portfolio's value could decline based on changes in market risk factors.
- It encompasses various risk components, including market risk, credit risk, and operational risk, providing a holistic view of potential financial exposure.
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