Singapore 2004
Developments in Risk AttributionInvestment Managers Association of SingaporeSeptember 23, 2004
Alex CarmichaelDirectorRisk Solutions & OperationsRiskMetrics Group Asia [email protected]
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Agenda
1. Introduction: VaR & TE2. Recent trends in risk measurement
and attribution3. Measuring the risk of alternative
investments4. Ideas for combined risk analysis of
traditional long-only portfolios with alternative investments
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1. Relative VaR & Tracking Error
• Relative VaR measures the risk of under performing a
Benchmark Portfolio
• Extends beyond PV, Duration and Gamma matching
• Tracking Error is a Special Case of Relative VaR
» Confidence Level = 84.13%
» Annualized Measure = 252 Trading Days
• VaR analysis brings standardization and flexibility to
risk analysis
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2. Risk Management for Asset Managers –a spectrum of measures
Risk Measures Requirements
Market ExposureAbsolute and Relative Weights
Portfolio and Benchmark PositionsMultiple Classification Hierarchies
Exposure SensitivitiesDelta, Gamma, Duration
+ Security Modeling+ Cross-Asset Class Aggregation
Stress TestingHistorical, What if Scenarios
+ Market Data and Derived Data+ Volatility and Correlation Generation
Risk DecompositionTracking Error, Spread Risk
+ Full-Valuation Simulations+ Data Granularity
Risk AttributionAllocation and Security Selection
+ Investment Process Modeling+ Investment Process
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A comprehensive approach: a single framework
Portfoliosand Benchmarks
StandardMarket Data
StandardClassifications
Classifications
SecurityModeling
Market Exposure
Exposure Sensitivities
Stress Testing
Risk Decomposition
Risk Attribution
SimulationAggregation
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Risk Attribution
Equity Attribution:» Adjust by weights» Sector Allocation» Security Selection
Fixed Income Attribution:» Adjust by weights or duration» Duration» Segment Allocation» Security Selection» Currency Allocation» Spread
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Risk decomposition and issuer-specific credit risk
TrackingBenchmark Portfolio Bet Risk F/X I/R Market Issuer
Total 100.0 100.0 71.8 22.0 60.4 25.1 44.0
Governments 50.0 45.2 -4.80 49.5 22.0 35.8 35.8 MBS 4.0 3.95 12.7 12.7 12.7
Corporates 50.0 50.8 0.85 44.2 44.2 4.3 44.0
Consumer, Cyclical 13.2 18.5 5.26 38.5 38.5 44.3 40.0 Consumer, Non-cyclical 11.8 6.9 -4.90 35.1 35.1 36.7 9.7
MERCK & CO INC 0.5 0.0 -0.51 7.3 7.3 7.5 0.9 COCA-COLA ENT. 0.4 1.1 0.60 7.6 7.6 7.3 4.3 ARCHER-DANIELS 0.6 0.0 -0.60 7.2 7.2 7.2 0.9
ELI LILLY & CO 0.5 0.0 -0.53 6.6 6.6 7.2 1.7 REVLON INC 0.3 0.1 -0.26 6.9 6.9 1.1 7.2
Basic Materials 3.2 2.2 -0.99 9.3 9.3 11.4 4.7 Technology 1.9 3.2 1.27 16.1 16.1 3.9 16.9
Portfolio Notes:
1) Majority of Corporate Tracking Risk is due to Issuer-Specific Volatility.2) F/X Risk for International Bonds is mitigated by I/R correlations.
Allocation Risk Decomposition
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Marrying risk attribution with performance attribution
Portfolio Benchmark Performance Risk RiskBet Projection Attribution Attribution Index
Total 7.50 127 285 0.45
Pharmaceuticals 4.13 11.50 17 43 0.39 Diversified Finan Serv 3.23 15.75 27 17 1.59 Electric -3.09 4.80 8 20 0.43 Telecommunications -1.35 -5.00 17 13 1.29 Oil&Gas -1.68 6.50 2 30 0.06 Semiconductors 1.21 12.00 5 25 0.22 Banks -3.80 5.00 9 14 0.68 Computers -0.82 6.00 1 5 0.24 Retail 1.44 8.20 1 22 0.05 …..
Portfolio Notes:
1) Retail, Oil&Gas, Computers, and Semiconductors add risk without anticipated reward.2) Phamaceuticals risk far exceeds anticipated reward.
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3. Alternative Investments: Intelligence versus Information
• Position Transparency = Information» Managers providing investors with a list of positions
can be useless for today’s complex fund strategies.» Information ≠ Intelligence
• Analysis + Organization = Intelligence» Value is created when positions are independently
priced (standardized), linked to models and risk factors (data), analyzed, organized and aggregated
• Intelligence = Better Decisions» Better decisions are possible when well organized,
consistent reporting methods allow meaningful comparisons of valuations and risk results
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Risk Types
• Market Risk – potential loss due to market price volatility under normal and stressed conditions. Risk factors include equity time series, yield curves, volatilities, volatility surfaces, commodities, and currencies.
• Credit Risk – potential loss due to issuer specific risk. CreditGrades uses a structural Merton model to calculate issuer specific spread risk.
• Valuation Risk – potential loss due to hard to price, illiquid or mispriced securities.
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4. Combined Risk Analysis
Options:1. Describe alternative investment
exposure as a beta to an index2. Construct a NAV series for a fund or
fund-of-fund3. Combine portfolio using sensitivities4. Describe alternative investment
exposure as a sensitivity instrument within the regular VaR framework
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Considering the Options
• No access to exposure level detail• Hedge Funds do not adhere to benchmarks• Portfolio churn and style drift may lessen the
relevancy of past returns• Standardized models and market data• Sensitivities can be added:
» Exposure to risk type» Exposure to scenario type» Exposure to risk factor
• Hedge fund exposures can be evaluated as a regular asset type with given sensitivities to standard risk factors
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Adding Alternative Investments as an Asset Class in a VaR Framework
TrackingBenchmark Portfolio Bet Risk Total Asset Issuer Security
Total 100.0 100.0 71 71 28 46 -2
Corporates 50.0 50.8 0.85 46 42 2 40 Sun Microsystems Inc 0.4 1.7 1.29 18 11 9 Pep Boys 0.4 1.4 1.05 14 8 6 Ford Motor Co 0.3 1.2 0.90 12 8 6
Governments 50.0 45.2 -4.80 23 21 9 6 6 United States Govt 12.2 10.1 -2.15 13 8 1 3 Italy Govt 4.3 3.4 -0.99 8 5 2 2
Italy 6.50% BTP Nov 27 0.2 0.1 -0.19 2 1 1 Italy 4.25% BTP Nov 2009 0.3 0.0 -0.22 1 1 Italy 4.50% BTP May 2009 0.3 0.1 -0.21 1 1
Netherlands Govt 1.4 0.9 -0.46 3 2 1 1
Alternative Investments 0.0 4.0 3.95 15 9 17 -8 Oceanview Hedge Fund 0.0 3.1 3.06 12 6 -7
Portfolio Notes:
1) Corporate issuer selection is adding most risk.2) Only top 3 issuers and securities displayed.
Allocation Risk Contribution
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Summary
• Detailed analysis and attribution of risk is available for traditional long-only portfolios
• Alternative Investments pose challenging problems but can be solved with:» Transparency» Standardization
• Including Alternative Investments as an asset class can be done with sensitivities to:» Standard risk factors» Standard stress scenarios