CFA II Flashcards
What are the three approaches to estimating VaR?
- Parametric method
- Historical simulation
- Monte Carlo simulation
What are the three steps when estimating VaR of a portfolio?
- Decompose risk factors
- Collect historical data
- Third step depends on approach used
How many trading days are there in one year?
250
What is the z-score for a one-tailed test with a 5% significance level?
1.645
What is the z-score for a two-tailed test with a 5% significance level?
1.96
What is surplus at risk cause by?
A mismatch between the duration of the assets and the duration of the liabilities
Leverage for banks (formula)
RWAs
———
Equity
Information Ratio (formula)
Information Coefficient x (Breadth)^0.5 (x Transfer Coefficient)
Or
Active Return
——————— (x Transfer Coefficient)
Active Risk
Optimum Level of Active Risk
IR
——— x sd(b)
SR(b)
Sharpe Ratio of Actively Managed Portfolio (formula)
SR(p)^2 = SR(b)^2 + IR^2
Risk Neutral Probability (Formula)
1 + r - d
————
u - d
What view does a positive delta signify?
Bullish
What view does a negative delta signify?
Bearish
When is gamma at its highest?
When it is ATM and near to expiry
What accounting method(s) is used for <20% ownership in a company?
Cost or FV
What accounting method is used for 20-50% ownership in a company?
Equity method
What accounting method(s) is used for >50% ownership in a company?
Consolidation method
R^2
RSS
——
SST
Standard deviation of the residuals (SEE)
(MSE)^0.5
Adjusted R^2 (formula)
n - 1
1 - [(————) x (1 - R^2)]
n - k - 1
How do you correct for serial correlation? (2 methods)
- Adjust the coefficient standard errors using the Hansen method
- Improve the specification of the model
How to detect serial correlation? (Two methods)
- Scatter plot with residuals
- Durbin-Watson test
How do you detect heteroskedasticity? (Two methods)
- Scatter plot
- Breusch-Pagan Chi-Squared test
Breusch-Pagan test statistic (formula)
n x R^2(resid)