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Asset Allocation – What have you done for me lately?. Tom Robinson, PhD, CFA, CFP, CAIA Managing Director, Education Tom.robinson@cfainstitute.org http://www.linkedin.com/in/ trrphd. Agenda. The Investment Management Process Asset Allocation in Practice: How Important Is It?
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Asset Allocation – What have you done for me lately? Tom Robinson, PhD, CFA, CFP, CAIA Managing Director, Education Tom.robinson@cfainstitute.org http://www.linkedin.com/in/trrphd
Agenda • The Investment Management Process • Asset Allocation in Practice: How Important Is It? • Asset Allocation in Practice: The Financial Crisis
Asset Allocation Asset Allocation in Practice – How Important is it?
Relative Importance • How important is strategic asset allocation versus other parts of the process? • Determinants of Portfolio Performance
Brinson Hood & Beebower 1986 (FAJ) 91 Large Corporate Pension Plans 40 quarters of data 1974-1983
Ibbotson & Kaplan 2000 (FAJ) Question 1 – Time Series Analysis ” …high r-squared result primarily from funds participation in capital markets in general.” Question 2 Cross Sectional Analysis of 94 balanced mutual funds 1988 – 1998 40% Question 3 Impact of strategic asset allocation on average returns for balanced mutual funds and pension funds (active managementdid not contribute on average) 100%
Xiong, Ibbotson, Idzorek and Chen 2010 (FAJ) • Variation in a portfolio’s returns from: • Cash or risk-free asset • The market portfolio (average in this case) • Strategic Asset Allocation Policy • Active Management • Tactical Asset Allocation • Security Selection • Fees
Xiong, Ibbotson, Idzorek and Chen 2010 (FAJ) Sample: 5,628 mutual Funds, up to 11 asset Classes; Time Series Analysis Variability of returns explainded.
Xiong, Ibbotson, Idzorek and Chen 2010 (FAJ) Sample: 5,628 mutual Funds, up to 11 asset Classes; Time Series Analysis after removing market returns. Variability of returns explained.
Xiong, Ibbotson, Idzorek and Chen 2010 (FAJ) • Monthly cross-sectional analysis. • 120 regressions to explain variation among funds as opposed to over time. • Also effectively removes market return as it is the same for all funds. • On average strategic asset allocation explained 40% of variability.
Ibbotson 2010 (FAJ) • Asset allocation provides passive return (beta). • Remainder of return is active (alpha). • On average alpha sums to zero across all portfolios. • Asset allocation, on average, determines 100% of returns before costs. • After controlling for interaction effects – at the firm level: • About 75% of return variation comes from market movement • Remaining variation split about evenly between asset allocation and active management.
Observations • Beta versus Alpha • Passive versus Active • Average alpha/returns from active management should be zero. • Importance of asset allocation
Asset Allocation Asset Allocation in Practice: The Financial Crisis
Modern Portfolio Theory & The Crisis • Efficient Frontier versus Efficient Markets • Assumptions • Returns are normally distributed. • Risk can be measured by standard deviation. • Investors are risk averse and rational. • Investments are infinitely divisible and priced in line with risk levels. • Limitations • Investors are not always rational and markets are not particularly efficient at pricing – fear, panic and greed also drive markets and as we saw in this crisis markets can seize up. • Asset Allocation Inputs • Expected Returns: Returns are not quite normally distributed and extreme events occur much more frequently than normal. • Expected Variability (SD): Variability is variable! • Expected Correlations: Correlations are not stable, they change over time and are asymmetrical, particularly in periods of market stress like the recent crisis.
Black Monday and Black Swans • Bogle (2008) • 19 October 1987 • Still a record daily decline – US Stock Market dropped 22.6% in one day • Risk versus uncertainty: risk is a measurable quantity for which probabilities and distributions are known whereas uncertainty is immeasurable.
Three Sigma or More Events • Black Monday is still a record: Next two largest daily declines were 28 October 1929 at 13.5% and 29 October 1929 at 11.7%. Largest daily gain in DJIA was 15.3% on 15 March 1933. • 20,839 DJIA daily returns from 1 October 1928 (when it began using 30 stocks) through 23 September 2011. Mean daily return 0.025%, Standard deviation 1.16%. • Three sigma or greater events expected for a normal distribution would be about 0.27% or about 56 events • Actual number was 364 or six and a half more times than would be expected for a normal distribution. (203 negative events and 161 positive). • There is also a clustering of these events in short time periods. Seven three sigma days occurred from 4 August 2011 to 23 September 2011. 25 such days occurred from 15 September 2008 to 1 December 2008.
Large Cap Stock Return Distribution Fat-tailed (Excess kurtosis = 2.95), Negatively Skewed (Skewness = -.91)
30 Year US Government Bonds Return Distribution Fat-tailed (Excess kurtosis = 3.22, Positively Skewed (Skewness = .51)
Fat-Tailed Events How rare are black swans, really? “Once-in-a-century crisis” — Alan Greenspan Q: What is the probability of a 50% drawdown in stocks during a 100-year period? Assume: 7.5% annual return 18% standard deviation A: 90% (50% decline almost certain!) Source: Zhou, Guofu, and Yingzi Zhu. 2010. “Is the Recent Financial Crisis Really a ‘Once-in-a-Century’ Event?” Financial Analysts Journal, vol. 66, no. 1(January/February). Image source: sxc.hu
Black Turkeys Source: Siegel, Laurence B. 2010. “Black Swan or Black Turkey?” Financial Analysts Journal , vol. 66, no. 4 (July/August).
Variability of Variability Trailing 252 day standard deviations- DJIA
Returns Across Stocks More Correlated Pairwise Correlation of Price Changes Source: R. Sullivan and J. Xiong , Forthcoming 2012, Financial Analysts Journal
Asymmetrical Correlations • Chua, Kritzman & Page, 1999, JPM and others. • Downside correlations are higher than upside correlations. • Portfolios should be designed like airplanes – able to withstand turbulence whenever it arises as it is unpredictable. • Need to factor the correlation asymmetry into optimization – design portfolios with asset classes with less correlation on the downside and more correlation on the upside. • Stress testing portfolios using downside correlations.
“Asset Allocation in a Crisis’ • Jacobson 2009 SSRN, 2010 JFP and CFAM 2010 • Lessons Learned (mainly aimed at PW) • Strategic asset allocation should not be static asset allocation. • Awareness of economic and market conditions should inform portfolio allocations. • Risk management/allocation goes beyond style and size factors – Other factors such as liquidity matter. • “Asset” Allocation not just across asset classes but across risk factors, Beta risk, Alpha risk, liquidity. Still a work in progress to implement. • “Insurance like” allocations
Higher Correlations – Crisis Related or systematic? Rise of Index Investing Source: R. Sullivan and J. Xiong , Forthcoming 2012, Financial Analysts Journal
Observations • Markets and models are not perfect. • That does not mean we should not diversify our portfolios – portfolios that included high quality government bonds performed well in the 2008 crisis and this year. • Research by Ibbotson and others continues on how to best incorporate non-normal distributions into asset allocation. • Be prepared for continued high correlations • Stress test portfolios