12.3 Performance Measures & Reporting
Accurate performance measurement is essential for evaluating investment results and comparing managers. Understanding various performance metrics and reporting standards is critical for investment advisers.
Return Calculations
Total Return
Total return captures all sources of investment gain:
Total Return = (Ending Value - Beginning Value + Income) / Beginning Value
Example: An investment of $10,000 grows to $11,000 and pays $200 in dividends:
- Total Return = ($11,000 - $10,000 + $200) / $10,000 = 12%
Annualized Return
Converts returns to an annual equivalent for comparison:
Annualized Return = (1 + Total Return)^(1/Years) - 1
Example: A 33.1% return over 3 years:
- Annualized = (1.331)^(1/3) - 1 = 10% per year
Time-Weighted Return (TWR)
TWR eliminates the impact of cash flows to measure pure investment performance:
Purpose: Measure manager skill
Cash Flows: Eliminates their effect
GIPS Required: Yes
Best For: Comparing managers
How It Works: Links sub-period returns before and after each cash flow
Money-Weighted Return (MWR / IRR)
MWR reflects the investor's actual experience, including the timing of cash flows:
Purpose: Measure investor's actual return
Cash Flows: Reflects their timing
Best For: Personal performance assessment
Calculation: Internal rate of return (IRR)
On the Exam: TWR is for comparing managers (GIPS requirement). MWR shows the investor's actual experience and is affected by the timing of their contributions and withdrawals.
Risk-Adjusted Performance Measures
Sharpe Ratio
Measures excess return per unit of total risk (standard deviation):
Sharpe Ratio = (Portfolio Return - Risk-Free Rate) / Standard Deviation
Risk Measure: Standard deviation (total risk)
Interpretation: Higher is better
Best For: Undiversified portfolios or sole investments
Limitation: Penalizes both upside and downside volatility
Treynor Ratio
Measures excess return per unit of systematic risk (beta):
Treynor Ratio = (Portfolio Return - Risk-Free Rate) / Beta
Risk Measure: Beta (systematic risk only)
Interpretation: Higher is better
Best For: Well-diversified portfolios
Assumption: Unsystematic risk has been diversified away
Jensen's Alpha
Measures the excess return above what CAPM predicts:
Alpha = Actual Return - [Risk-Free Rate + Beta x (Market Return - Risk-Free Rate)]
Positive: Outperformed risk-adjusted expectation
Zero: Performed as expected
Negative: Underperformed risk-adjusted expectation
Example: If CAPM predicts a 10% return but the portfolio earned 12%, alpha = 2%
Information Ratio
Measures the consistency of outperformance relative to a benchmark:
Information Ratio = Active Return / Tracking Error
Where:
- Active Return = Portfolio Return - Benchmark Return
- Tracking Error = Standard deviation of active returns
0.5+: Good
0.75+: Very Good
1.0+: Excellent
Comparison of Measures
Sharpe Ratio: Risk Basis - Total risk (std dev). Best Use: Single portfolio evaluation
Treynor Ratio: Risk Basis - Systematic risk (beta). Best Use: Diversified portfolios
Jensen's Alpha: Risk Basis - Systematic risk (beta). Best Use: Manager skill assessment
Information Ratio: Risk Basis - Tracking error. Best Use: Active manager consistency
Benchmarking
Benchmark Selection Criteria
An appropriate benchmark should be:
Investable: Could actually be purchased
Measurable: Returns can be calculated
Appropriate: Reflects strategy and style
Unambiguous: Clearly defined constituents
Specified in Advance: Known before the period
Owned: Manager accepts it as valid comparison
Common Benchmarks
U.S. Large Cap: S&P 500
U.S. Small Cap: Russell 2000
U.S. Aggregate Bonds: Bloomberg U.S. Aggregate
International Developed: MSCI EAFE
Emerging Markets: MSCI Emerging Markets
Real Estate: NCREIF, FTSE NAREIT
Global Investment Performance Standards (GIPS)
GIPS are voluntary ethical standards for investment performance presentation, created by CFA Institute.
Objectives of GIPS
1. Promote investor confidence
2. Ensure accurate and consistent performance data
3. Establish a global standard for comparison
4. Promote fair competition among firms
5. Encourage industry self-regulation
Who Can Claim GIPS Compliance
Can Claim: Investment management firms; Asset owners managing discretionary assets; Firms competing for business
Cannot Claim: Individual advisers; Brokers without discretion; Non-investment firms
Key GIPS Requirements
Minimum Performance History: At least 5 years (building to 10)
Return Calculation: Time-weighted returns required
Composite Construction: All discretionary, fee-paying accounts
Fee Disclosure: Both gross and net-of-fee returns
Verification: Voluntary but recommended
GIPS Composite Requirements
All fee-paying discretionary portfolios must be included in at least one composite based on:
- Similar investment strategy
- Similar risk/return objectives
- Comparable mandates
On the Exam: GIPS is voluntary, requires time-weighted returns, and all discretionary fee-paying accounts must be in composites. No "cherry-picking" of best performers.
Key Takeaways
1. TWR measures manager performance (GIPS required); MWR measures investor experience
2. Sharpe uses total risk (std dev); Treynor uses systematic risk (beta)
3. Positive Jensen's alpha means outperformance vs. CAPM prediction
4. GIPS are voluntary standards requiring TWR and composite presentation
5. Benchmarks must be investable, measurable, appropriate, and specified in advance