FOR PROFESSIONAL INVESTORS Multi-Alpha Equity Porfolios R. Leote de Carvalho, X. Lu, P. Moulin Inquire Europe – October 2013, Munich, Germany I 08/04/2015 I Smart Beta indexes The buzz of the moment ● Smart Beta indexes have gained huge popularity – Risk-based Indexes: Minimum Variance, Maximum Diversification, Risk Parity – Fundamental Indexation: stock weights determined by company fundamental data ● Back-tests show that Smart Beta indexes would have performed better than market-cap – More performance – Less risk – Or both 2 I 08/04/2015 I What is new in Smart Beta indexes Perhaps not that much new… clumsy approaches exposed to market anomalies? ● “Demystifying Equity Risk-Based Strategies: an alpha plus beta description” Seminar Inquire Europe, Autumn 2012, 28 - 30 October, Pera Palace Hotel Istanbul, Turkey – Risk-based Smart Beta indexation relies on alpha from Low Volatility and Small Cap stocks ● Others have since shown: – Fundamental Indexation relies on alpha from Value stocks Smart Beta indexes are a new form of systematic active strategies where stock selection is based on a formula that determines how portfolios deviate from the market cap index. Despite being transparent with the formula made public, many can be quite complex. And finally, Smart Beta seems to rely on well known market anomalies but in a somewhat clumsy way. 3 I 08/04/2015 I How to build a multi-alpha portfolio? Let’s step back and reconsider the problem again Objective: Build an active portfolio invested in equities Combine different sources of alpha Make sure the portfolio complies with constraints Make sure that constraints have the least possible impact on your alpha 4 I 08/04/2015 I How to build a multi-alpha portfolio? The steps required Identify your sources of alpha Allocate a risk budget to each source of alpha Build an unconstrained target portfolio Get implied returns for unconstrained target portfolio Optimise from implied returns applying constraints R Leote de Carvalho, X. Lu, P. Moulin Multi-Alpha Equity Portfolios: An Integrated Risk Budgeting Approach for Robust Constrained Portfolios. http://papers.ssrn.com/sol3/papers.cfm?abstract_id=2173230 5 I 08/04/2015 I Identify your sources of alpha Allocate a risk budget to each source of alpha Build an unconstrained target portfolio Get implied returns for unconstrained target portfolio Optimise from implied returns applying constraints 6 I 08/04/2015 I Identify sources of alpha ● Where to find sources of alpha? – In any strategy that can generate returns higher than predicted by beta ● Examples of quantitative sources of alpha: – 1972: Low Risk anomaly (Haugen & Stein, Wiscosin University) – 1977: Value anomaly (Basu, Journal of Finance) – 1979: Earnings Revisions anomaly (Lakonishok and Givoly, Journal of Acc. and Economics) – 1981: Small Cap stocks anomaly (Banz, Journal of Financials Economics) – 1990: Short-term reversal anomaly (Jagadeesh, Journal of Finance) – 1993: Momentum anomaly (Jagadeesh and Titman, Journal of Finance) – 1996: Accruals anomaly (Sloan, The Accounting Review) 7 I 08/04/2015 I Identify your sources of alpha Allocate a risk budget to each source of alpha Build an unconstrained target portfolio Get implied returns for unconstrained target portfolio Optimise from implied returns applying constraints 8 I 08/04/2015 I Allocate a risk budget to each source of alpha How much do you know? How accurately? Given expected information ratios and strategy variance-covariance matrix Markowitz if correlations not too large Re-sampling from history (bootstrapping optimisation) Uncorrelated alpha strategies Same expected Information Ratio for each alpha strategy but different correlations Risk budget allocate to each alpha strategy is proportional to expected information ratio Maximum diversification allocation of alpha strategies No accurate forecast of returns or correlations Equal risk budget allocation to each alpha strategy 9 I 08/04/2015 I Identify your sources of alpha Allocate a risk budget to each source of alpha Build an unconstrained target portfolio Get implied returns for unconstrained target portfolio Optimise from implied returns applying constraints 10 I 08/04/2015 I 11 Build an unconstrained target portfolio SC VS HM LU TI LIT M HM LT EL EC O HM LM AT ER IA LS TE CH HM LI NF O HM LI ND US TR IA LS CA RE HM LH EA LT H IA LS HM LF IN AN C HM LE NE R S HM LC ON GY ST AP L SC DI S 0% -12% -14% -7% -7% -20% 4% -8% -24% 9% 8% 18% 24% 9% 0% 16% 14% 7% -4% 38% 18% 31% 31% 36% 26% 25% 31% 27% 9% 52% 43% 27% 42% 26% 45% 20% 36% 24% 46% 27% 37% 28% 22% 18% 8% 58% 23% 29% 31% 39% 18% 36% 28% 38% 24% 29% 38% 28% 41% 19% 37% 35% 20% 29% 2% -10% 6% -15% 14% -6% 27% -11% -1% 1% 2% -25% -6% -10% -1% -15% 14% -23% 3% -9% -11% -3% 6% -25% 9% -23% 6% -18% 9% -1% 7% -13% -15% -61% 8% -7% -1% 3% 2% -17% 22% 2% 7% 0% 28% 13% 32% 7% 21% 14% 3% -6% 7% -19% 12% -18% 19% -17% 4% 9% 3% -15% 2% -26% 12% -10% 29% -2% 1% 1% -7% -15% 4% -6% -3% -7% -3% -9% -3% -3% -8% -10% -18% -12% -3% -6% -11% -18% -16% -4% 8% 18% 17% 5% 11% 15% 13% 10% 14% 26% 46% 35% 26% 37% 28% 34% 45% 43% 21% 34% 60% 54% 47% 47% 43% 55% 38% 31% 47% 51% 53% 54% 38% 36% 25% 13% 55% 29% 12% 12% 6% 12% 19% 16% 20% 16% 20% 15% 14% 13% 18% 20% 17% 14% 6% HML CONS DISC HML CONS STAPLES HML ENERGY HML FINANCIALS HML HEALTH CARE HML INDUSTRIALS HML INFO TECH HML MATERIALS HML TELECOM SCVS ON HM LC UT ILI TI ES ES SC VS M LV MH V TE LE CO LV MH V MA TE RI AL S LV MH V LV MH V LV MH V IN F O TE CH US TR IA LS IA LS AN C LV MH V FI N LV MH V EN ER GY LV MH V CO NS DI SC -4% LVMHV CONS DISC LVMHV CONS STAPLES LVMHV ENERGY LVMHV FINANCIALS LVMHV HEALTH CARE LVMHV INDUSTRIALS LVMHV INFO TECH LVMHV MATERIALS LVMHV TELECOM SCVS LVMHV UTILITIES LV MH V CO NS LV MH V MSCI World - Rf Sector Neutral IN D Low Volatility and Value CA RE HE AL TH How much alpha? ST AP LE S Correlation of low volatility and value alpha by sector I 08/04/2015 I 12 Build an unconstrained target portfolio SC VS HM LU TI LIT M HM LT EL EC O HM LM AT ER IA LS TE CH HM LI NF O HM LI ND US TR IA LS CA RE HM LH EA LT H IA LS HM LF IN AN C HM LE NE R S HM LC ON GY ST AP L SC DI S 0% -12% -14% -7% -7% -20% 4% -8% -24% 9% 8% 18% 24% 9% 0% 16% 14% 7% -4% 38% 18% 31% 31% 36% 26% 25% 31% 27% 9% 52% 43% 27% 42% 26% 45% 20% 36% 24% 46% 27% 37% 28% 22% 18% 8% 58% 23% 29% 31% 39% 18% 36% 28% 38% 24% 29% 38% 28% 41% 19% 37% 35% 20% 29% 2% -10% 6% -15% 14% -6% 27% -11% -1% 1% 2% -25% -6% -10% -1% -15% 14% -23% 3% -9% -11% -3% 6% -25% 9% -23% 6% -18% 9% -1% 7% -13% -15% -61% 8% -7% -1% 3% 2% -17% 22% 2% 7% 0% 28% 13% 32% 7% 21% 14% 3% -6% 7% -19% 12% -18% 19% -17% 4% 9% 3% -15% 2% -26% 12% -10% 29% -2% 1% 1% -7% -15% 4% -6% -3% -7% -3% -9% -3% -3% -8% -10% -18% -12% -3% -6% -11% -18% -16% -4% 8% 18% 17% 5% 11% 15% 13% 10% 14% 26% 46% 35% 26% 37% 28% 34% 45% 43% 21% 34% 60% 54% 47% 47% 43% 55% 38% 31% 47% 51% 53% 54% 38% 36% 25% 13% 55% 29% 12% 12% 6% 12% 19% 16% 20% 16% 20% 15% 14% 13% 18% 20% 17% 14% 6% Average = 30% HML CONS DISC HML CONS STAPLES HML ENERGY HML FINANCIALS HML HEALTH CARE HML INDUSTRIALS HML INFO TECH HML MATERIALS HML TELECOM SCVS ON HM LC UT ILI TI ES ES SC VS M LV MH V TE LE CO LV MH V MA TE RI AL S LV MH V LV MH V LV MH V IN F O TE CH US TR IA LS IA LS AN C LV MH V FI N LV MH V EN ER GY LV MH V CO NS DI SC -4% LVMHV CONS DISC LVMHV CONS STAPLES LVMHV ENERGY LVMHV FINANCIALS LVMHV HEALTH CARE LVMHV INDUSTRIALS LVMHV INFO TECH LVMHV MATERIALS LVMHV TELECOM SCVS LVMHV UTILITIES LV MH V CO NS LV MH V MSCI World - Rf Sector Neutral IN D Low Volatility and Value CA RE HE AL TH How much alpha? ST AP LE S Correlation of low volatility and value alpha by sector Average = 0% Average = 30% I 08/04/2015 I Build an unconstrained target portfolio Alpha Capture strategy based on long-short portfolios long stocks with expected positive alpha short stocks with expected negative alpha Quantitative sources of alpha: Exposure to factors predicts stock alpha Value Low Volatility Momentum Small cap Etc 13 I 08/04/2015 I Build an unconstrained target portfolio Target portfolio = Benchmark Market Capitalisation Index + Long-Short factor tilts ● Quantitative alpha can be captured using the set of selected of factors: – Each factor contributes to the final stock tilts via a long/short portfolio. ● Long-short factor tilts = active stock deviations from benchmark: – Leverage to each long-short factor tilt to meet assigned risk budget – Leverage to combination of long-short factor tilts to meet target tracking error risk budget ● Add tilts to Benchmark Market Capitalisation Index – Target constant level of ex-ante portfolio tracking error risk – Keep constant he contribution of each alpha factor to portfolio tracking error 14 I 08/04/2015 I 15 Build an unconstrained active target portfolio Combine the different systematic alpha portfolios Market Portfolio Target active deviations from market capitalization portfolio cheap 100% 90% 80% 70% 60% 50% 40% 30% 20% 10% expensive Value low risk high Risk Low Volatility positive trend negative trend Momentum small cap large cap 30% 20% 10% -10% -20% -30% Small Cap Tilts in favour of Cheap, Low Volatility, Trending and Small Cap stocks Tilts away from Expensive, High Volatility, Negative Trending and Large Cap stocks Size of tils is determined by the allocated risk budget to each source of alpha 80% 70% 60% 50% 40% 30% 20% 10% -10% -20% -30% -40% -50% -60% -70% -80% small cap positive trend low risk cheap expensive high Risk negative trend large cap Combined target deviations from market capitalization portfolio I 08/04/2015 I Identify your sources of alpha Allocate a risk budget to each source of alpha Build an unconstrained target portfolio Get implied returns for unconstrained target portfolio Optimise from implied returns applying constraints 16 I 08/04/2015 I Get implied returns for unconstrained active target portfolio What are implied returns? The implied return of each stock are return which renders the portfolio efficient Implied returns are obtained through reverse optimisation of the unconstrained portfolio small cap positive trend Reverse optimization low risk cheap expensive high Risk negative trend large cap Combined target deviations from market capitalization portfolio Optimization Implied stock returns 17 I 08/04/2015 I Identify your sources of alpha Allocate a risk budget to each source of alpha Build an unconstrained target portfolio Get implied returns for unconstrained target portfolio Optimise from implied returns applying constraints 18 I 08/04/2015 I Optimise from implied returns applying constraints Robust optimisation The efficient portfolio obtained from the implied returns using constrained optimisation will: respect the constraints while minimizing their impact! represent as much as possible the views in the original unconstrained portfolio Implied stock returns Constraints Optimisation Constrained Porftolio 19 I 08/04/2015 I Robust framework for model portfolio construction How are constraints handled? Starting unconstrained portfolio Do not apply constraints Implied returns Apply constraints Target same TE as in unconstrained portfolio Target same risk aversion as in unconstrained portfolio Target same TE as in unconstrained portfolio Starting unconstrained portfolio Portfolio with the lowest tracking error against unconstrained portfolio Portfolio with the largest correlation against unconstrained portfolio Constraints impact specific risk exposures. Exposures to risk factors are mimicked as much as possible. 20 I 08/04/2015 I 1. Combine Value, Low Volatility, Momentum and Small Cap Build a benchmarked long-only constrained portfolio Small Value Momentum Low Volatility Information Ratio 0.43 0.25 0.79 0.47 Value 75 Correlation (%) Momentum Low Volatility 0 -4 -26 4 -7 Jan-95 through Dec-11. USD. MSCI World index stock universe. Source http://papers.ssrn.com/sol3/papers.cfm?abstract_id=2173230 21 I 08/04/2015 I 1. Combine Value, Low Volatility, Momentum and Small Cap Build a benchmarked long-only constrained portfolio 900 Cumulated returns of unconstrained and constrained portfolios compared to the MSCI World Index benchmark 800 700 600 500 400 300 200 100 0 MSCI World Index Unconstrained Long-only + Liquidity Constrained Long-only + Liquidity + # of stocks Constrained Jan-95 through Dec-11. USD. MSCI World index stock universe. Almost indistinguishable performance for different portfolios, whether constrained or unconstrained! Source http://papers.ssrn.com/sol3/papers.cfm?abstract_id=2173230 22 I 08/04/2015 I 1. Combine Value, Low Volatility, Momentum and Small Cap Build a benchmarked long-only constrained portfolio Small Value Momentum Low Volatility Target Risk Budget (%) Mean Maximum Equal Variance Diversification Risk Budget 0.19 0.05 0.45 0.30 0.64 0.45 0.85 0.72 0.45 0.49 0.53 0.45 Intercept Small Value Momentum Low Volatility R-square Unconstrained Factor exposures from regression Mean Maximum Equal Variance Diversification Risk Budget 0.00 0.00 0.00 0.21 0.08 0.43 0.22 0.52 0.39 0.70 0.57 0.36 0.40 0.43 0.38 96% 96% 98% 3 approaches to ex-ante risk budgeting Ex-post, risk budgets are in line with ex-ante, even with constraints. First achievement of the framework! Long-only + Liquidity constraints Long-only + Liquidity + # stocks constraints Factor exposures from regression Factor exposures from regression Mean Maximum Equal Mean Maximum Equal Variance Diversification Risk Budget Variance Diversification Risk Budget 0.00 0.00 0.00 0.00 0.00 0.00 0.14 -0.02 0.28 -0.05 -0.11 0.04 0.21 0.50 0.38 0.18 0.41 0.37 0.73 0.59 0.39 0.78 0.63 0.45 0.45 0.49 0.45 0.48 0.42 0.55 91% 90% 89% 73% 66% 70% Jan-95 through Dec-11. USD. MSCI World index stock universe. Source http://papers.ssrn.com/sol3/papers.cfm?abstract_id=2173230 23 I 08/04/2015 I 24 1. Combine Value, Low Volatility, Momentum and Small Cap Build a benchmarked long-only constrained portfolio Mean-Variance Risk Budget Maximum Diversification Risk Budget Equal-Risk Budget Long-only Long-only Long-only Long-only Liquidity # Long-only Liquidity # Long-only Liquidity # MSCI World Liquidity Liquidity Liquidity Unconstrained Liquidity Unconstrained Liquidity Unconstrained Liquidity index # of Stocks # of Stocks # of Stocks constraints constraints constraints constraints constraints constraints Average return (%) 6.1 11.4 11.7 12.0 10.9 11.1 11.6 10.6 10.9 11.0 Volatility (%) 16.0 15.2 15.1 14.7 15.4 15.2 15.2 16.0 15.6 14.9 Sharpe ratio 0.15 0.51 0.53 0.56 0.47 0.49 0.52 0.43 0.46 0.49 Excess return (%) 5.3 5.6 5.9 4.8 5.0 5.5 4.5 4.8 4.8 Tracking error risk (%) 4.7 5.1 5.6 4.9 5.0 5.2 5.1 5.1 5.0 Information ratio 1.13 1.09 1.04 0.98 1.00 1.07 0.87 0.95 0.97 Average number of stocks (long / short) 839 / 883 1008 / 0 216 / 0 837 / 885 954 / 0 226 / 0 825 / 897 1083 / 0 220 / 0 Benchmark Performance and risk are little impacted by constraints. Long only implementation with much smaller number of stocks still achieves comparable results. Second achievement of the framework! Capturing alpha around constraints is possible if the portfolio is constructed thoughtfully. Jan-95 through Dec-11. USD. MSCI World index stock universe. Source http://papers.ssrn.com/sol3/papers.cfm?abstract_id=2173230 I 08/04/2015 I 2. Combine Value, Low Volatility, Momentum and Profitability Build a benchmarked long-only constrained portfolio ● Long-only ● Max 200 stocks ● Max 2% weight for each stock ● 5% tracking error risk against the benchmark index ● Turnover constrained to max 150% annual 25 I 08/04/2015 I 2. Combine Value, Low Volatility, Momentum and Profitability Build a benchmarked long-only constrained portfolio Backtest - 2002-2013 35% LowVol - 30% Momentum - 20% Value - 15% Profitability 12 Without Constraint Constrained except Turn-Over 10 All Constraints MSCI 8 6 4 2 0 Source: Theam, BNP Paribas Investment Partners 26 I 08/04/2015 I 2. Combine Value, Low Volatility, Momentum and Profitability Attribution analysis U.S. Dollars Since 1995 Since 2002 Since 2008 MSCI (World reconstructed) Absolute return 6.9% 5.9% 0.9% Absolute volatility (ex-post) 15.7% 16.4% 20.5% Absolute return 12.0% 10.4% 3.8% Absolute volatility (ex-post) 14.6% 16.0% 20.0% 0.59 0.52 0.14 +5.1% +4.5% +2.9% Low Vol contribution +2.0% +3.0% +1.9% Momentum contribution +1.8% +1.1% +0.0% Value contribution +2.5% +2.2% +1.7% Profitability contribution +1.2% +0.6% +0.6% ex-TO constraint impact -1.2% -1.3% -0.4% Turnover impact -1.1% -1.0% -1.0% Turnover 150% 150% 157% Tracking error (ex-post) 4.6% 3.7% 3.6% Information ratio 1.13 1.22 0.79 Beta 0.89 0.95 0.96 Alpha 5.5% 4.7% 2.9% Final Portfolio Sharpe ratio Excess return over BM Source: Theam, BNP Paribas Investment Partners Based on monthly returns 27 I 08/04/2015 I 2. Combine Value, Low Volatility, Momentum and Profitability Performance breakdown of 1995-2013: contributions to excess returns 140% 120% Profitability 100% 80% Value 60% Momentum 40% 20% Low Volatility 0% -20% -40% -60% ex-To Constraints Impact Turnover impact Profitability Source: Theam, BNP Paribas Investment Partners Value Momentum Low Vol 28 I 08/04/2015 I 2. Combine Value, Low Volatility, Momentum and Profitability Decomposition of ex-post active risk allocation compared to ex-ante target 100% 90% Constraints Profitability (15% ex-ante unconstrained target) 80% 70% Value (20% ex-ante unconstrained target) 60% 50% Momentum (30% ex-ante unconstrained target) 40% 30% 20% Low Volatility (35% ex-ante unconstrained target) 10% 0% Low Volconstraints Momentum Value including Profitability Constraints Impact Final portfolio, all turnover constraint Source: Theam, BNP Paribas Investment Partners 29 I 08/04/2015 I Conclusions Intuitive but robust approach to portfolio construction Separates the process of mixing unconstrained views from managing of constraints Different approaches to mixing unconstrained views depending of information available In any case, at stock level, all boils down to weighted average of portfolios representing views to form unconstrained target portfolio Back-test results show application to real portfolios Intuition confirmed Large correlation between unconstrained and constrained results Management of portfolio constraints and risk while keeping simplicity Achieves similar results to “Index + Long-Short hedge fund” while staying long-only 30 I 08/04/2015 I Disclaimer The facts and figures in this document are valid as at the date of publication of this document and are subject to change in the future. This document is issued and has been prepared by THEAM*, a member of BNP Paribas Investment Partners (BNPP IP)**,. This document is produced for information purposes only and it may not be reproduced, in whole or in part, in any way and under any circumstances, without the prior written consent of THEAM. This document does not constitute: 1. an offer to buy nor a solicitation to sell, nor shall it form the basis of or be relied upon in connection with any contract or commitment whatsoever; 2. any investment advice but rather, a basis from which strategies can be built, taking into account the specific objectives of any fund or portfolio, in terms of return, time horizon, and risk constraints, as well as diverging investment perspectives and assumptions. This document may make reference to certain collective investment schemes, such as FCP, compartments of funds, SICAVs or other structures with multiple compartments, compliant with the provisions of French law or part I of the Luxembourg law dated 20 December 2002 on UCITS and/or any other relevant laws and regulations, referred to as a fund or funds (a “Fund” or the “Fund(s)”) authorised and regulated in its/their jurisdiction(s) of incorporation. No action has been taken which would permit the public offering of the shares in any other jurisdiction, except as indicated in the most recent prospectus of the relevant Fund(s), where such action would be required, in particular, in the United States, to US persons (as such term is defined in Regulation S of the United States Securities Act of 1933). Prior to any subscription in a country in which a Fund is registered, investors should verify which compartments and which classes of shares are authorised for public sale there, as well as any legal constraints or restrictions there may be in connection with their subscription, purchase, possession or sale of the shares of the Fund(s). The information contained in this document is provided without prior knowledge of your circumstances, including your financial position, risk profile and investment objectives, and does not constitute a personal recommendation nor investment advice. Investors are recommended to seek the independent advice of their usual financial adviser in order to assess the suitability and appropriateness of the relevant Fund(s) or any investment vehicle or investment. Investors should consult their own legal and tax advisors in respect of legal, accounting, domicile and tax advice prior to investing in the Fund(s) or any investment vehicle or investment in order to make an independent determination of the suitability and consequences of an investment in the securities / financial instrument, if permitted. Please note that different types of investments, if contained within this document, involve varying degrees of risk and there can be no assurance that any specific investment may either be suitable, appropriate or profitable for a client or prospective client’s investment portfolio. Opinions included in this document constitute the judgement of THEAM or BNPP IP at the time specified and may be subject to change without notice, they are not to be relied upon as authoritative or taken in substitution for the exercise of judgement by any recipient and are not intended to provide the sole basis of evaluation of any strategy or instrument discussed herein. THEAM and/or BNPP IP are not obliged to update or alter the information or opinions contained within this document. Sources: All externally sourced information has been obtained from providers believed to be reliable, but its accuracy and completeness are not guaranteed. For further information on Fund(s), please contact an authorised distributor of the Fund(s). The list of authorised distributors is available from the registered office of the Fund(s) as detailed in the relevant prospectus(es). This document is prepared for eligible counterparties and professional clients only, it is not intended for retail clients (as such terms are defined in the Markets in Financial Instruments Directive 2004/39/EC (“MiFID”)), and should not be circulated to any such retail clients. By accepting this document you agree to be bound by the foregoing limitations. * THEAM is an investment manager registered with the Autorité des marchés financiers in France under number 04000048, a simplified joint stock company with a capital of 8.317.840 Euros with its registered office at 1, boulevard Haussmann 75009 Paris, France, RCS Paris 428 753 214 and is member of the Association Française de la Gestion Financière (AFG), a professional body for third-party asset management in France. ** BNP Paribas Investment Partners is the global brand name of the BNP Paribas group’s asset management services. The individual asset management entities within BNP Paribas Investment Partners if specified herein, are specified for information only and do not necessarily carry on business in your jurisdiction. For further information, please contact your locally licensed Investment Partner. 31