Performance Evaluation Flashcards
Performance measurement
A component of performance evaluation; the relatively simple procedure of calculating an asset’s or portfolio’s rate of return
Performance attribution
A comparison of an account’s performance with that of a designated benchmark and the identification and quantification of sources of differential returns
Performance appraisal
The evaluation of portfolio performance; a quantitative assessment of a manager’s investment skill
Rate of return with contribution made at the beginning/end of the period
Time-Weighted Rate of Return (TWR)
Money-Weighted Rate of Return (MWR) (same thing as IRR)
TWR versus MWR
- TWR represents the growth of one unit of money invested into the account
- MWR represents the average growth of all the money invested into the account
- MWR is sensible to the timing of cash flow whereas TWR isn’t
Linked Internal Rate of Return LIRR
Chain link of MWRs calculated periodically
- Example: (1 + r1) * (1 + r2) * (1 + r3) * (1 + r4) where rn is the MWR for the week
Returns due to style and active management
- M = Return on market index
- S = Return from manager’s investment style (B – M)
- B = Return on selected benchmark
- A = Return from manager’s active decisions (P - B)
Value-added return on a long–short portfolio where the active weights sum to zero (calculation)
- rv = rp – rB
- rν = value-added return
- rp = portfolio return
- rB = benchmark return
- wνi = the active weight of security i in the portfolio
- wpi = the weight of security i in the portfolio
- wBi = the weight of security i in the benchmark
Ex Ante CAPM (SML) over a single period
- E(RA) = the expected return on the account, given its beta
- rf = the risk-free rate of return (known constant for the evaluation period)
- E(RM) = the expected return on the market portfolio
- βA = the account’s beta or sensitivity to returns on the market portfolio, equal to the ratio of covariance to variance as Cov(RA, RM)/Var(RM)
Ex Post Alpha (also Jensens alpha)
- RAt is the return on the account
- rft is the risk-free return
- RMt is the return on the market proxy (market index)
Treynor Measure
Sharpe Ratio
M2