cfa2 Flashcards
(438 cards)
Active Return
asset alloc + security selection
Active Risk Squared
Active Factor risk +active specific risk
Active specific risk
Sum(wpi - wbi)^2 Stdev^2
Cvar
Expected loss if given loss exceeds CVaR
VaR
estimate min loss with given probab over a specific period, 5%VaR = (mean annual ret - 1.65stdev)portval
IVaR
Incremental Var, change in VaR from a specific changed in size of a portfolio position
MVaR
Marginal VaR, change in VaR for a small change in a portfolio position, used as estimate of positions contribution to overall VaR
Variance two funds
Wa^2stdeva^2 + Wb^2StdevB^2 + 2WaWbCovAB
chg Val vs change ytm
-durationchg yield + .5Convexitychg yield^2 **( if macauly chg yield/(1+Yield) to get mod)
Survivorship bias
Using data that only includes entities that have persisited until today
look-ahead bias
using info that wasnt available at time of inv decision
Data Snooping
mode chosen by backtestin perform, large t stat small p value
Cross validation
model is first fitted using training data, then assesed using seperate testing data
Scenario analysis
invsetigates a strategys perfoirmance and riskj under different structural regimes
Stress Testing
examines performance under the worst combination of events and scenarios
Historical Simulation
Observations are rondomly chosen from the historical dataset
Monte Carlo Simulation
statistical distribution is specified and calibrated using hisotrical return data
Bootstrapping
samples drawn with replacement, useful when more sims than dataset
Sensitivity analysis
overcomes shortcomings of montecarlo simu by taking into account fat tails and negative skewness
Intertemporal Rate Substitution(mt)
mt = u1/u0=marginal utility consuming 1 unit future/marginaly utility consuming 1 unit now
Real rfr
(1-p0)/p0 = (1/(e(m1)) -1
bond price
p0 = (E(p1)/(1+R)) + Cov(p,m)
Nominal ST IR
real risk free rate + inflation
Nominal LT IR
real risk free rate + inflation + risk premium for inflation uncertainty