Asset Allocation and Portfolios
Building and running portfolios: fixed mixes, tactical allocation, risk parity, rebalancing and diversification.
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- Asset Allocation Based on Trends Defined by Moving Averages SMA10 timing across five asset classes outperformed buy-and-hold (10.5% vs 9.9% annualized; 1973-2012; monthly rebalancing; S&P 500/bonds/EAFE/commodities/REITs).
- Early Retirement Safe Withdrawal Rate ERN finds safe withdrawal rates under 3.25% for early retirement (60-year horizons; 75-100% stock allocation; zero volatility assumption; theoretical analysis with Shiller-style real returns).
- Extension of “A Quantitative Approach to Tactical Asset Allocation” Faber's five-index SMA200 tactical allocation strategy (monthly; S&P 500, MSCI EAFE, 10-year Treasuries, GSCI, NAREIT; T-bills when below) earned 6.0% gross CAGR, 0.68 Sharpe in Jan 2006–Mar 2025, versus 11.7% CAGR, 0.81 Sharpe originally; descriptive, no…
- QQQ:IWM for Risk-on and GLD:TLT for Risk-off? QQQ:IWM-GLD:TLT switching strategy (S&P 500 SMA200 signal) outperformed SPY gross but underperformed net (6.7% vs 8.8% CAGR with frictions; Nov 2004–Nov 2020; risk-on/risk-off allocation).
- Review of the Golden Butterfly Portfolio Golden Butterfly (equal-weight VTI/IJS/TLT/SHY/GLD; monthly or annual rebalancing) had markedly lower CAGR than VTI and GLD but a fairly shallow maximum drawdown (ETFs Nov 2004–Jan 2026; gross of trading costs; mutual-fund proxies from Apr 1992).
- Strategies for Exploiting Index Rebalancing? A reader suggested: "With the annual Russell rebalancing coming later this month, maybe you could post some profitable trading strategies." A search of the Social Science Research Network (SSRN) for "index rebalancing" and "index reconstitution" and…
Fixed and lazy portfolios
51 articles60/40, permanent, all-weather and other set-and-forget mixes.
- Are Target Retirement Date Funds Attractive? Vanguard Target Retirement 2020-2050 funds were generally not preferable to a monthly rebalanced 60% SPY/40% LQD mix on return, volatility and reward-to-risk metrics (inceptions Oct 2003 or Jun 2006 through…
- Retirement Portfolio ETF Allocations by AI Panel Is the evolving set of artificial intelligence (AI) platforms based on large language models interesting as retirement portfolio specification advisors? Are they monolithic, or diverse? As a simple exploration, we…
- Testing the All Weather Portfolio The annually rebalanced 60/40 VTI/TLT benchmark beat the All Weather portfolio (30% VTI, 40% TLT, 15% IEF, 7.5% GLD, 7.5% DBC; annual rebalance) in 13 of 19 calendar years (Feb…
- Review of the Golden Butterfly Portfolio Golden Butterfly (equal-weight VTI/IJS/TLT/SHY/GLD; monthly or annual rebalancing) had markedly lower CAGR than VTI and GLD but a fairly shallow maximum drawdown (ETFs Nov 2004–Jan 2026; gross of trading costs;…
- Best Defense for a 60/40 Portfolio? Defensive Absolute Return (DAR; monthly long lowest-/short highest-correlation thirds of 25 long/short factors) averaged 0.8% gross monthly return in the 60/40 portfolio's worst 10% of months vs -0.4% for gold…
- No Safe Fixed Retirement Withdrawal Rate? With frictions included, the inflation-adjusted 4% withdrawal rule failed for 1960s retirees across 100% stocks, 60/40, 30/70 and 100% corporate bond allocations, but worked for other start dates since 1926…
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- Volatility-adjusted Retirement Income Streams Maximizing volatility-adjusted coverage ratio (coverage ratio divided by portfolio volatility) rather than coverage ratio alone is associated with lower optimal stock allocations (U.S. 1872–2022; 21 other countries 1900–2019; 30-year retirements;…
- Comparing Ivy 5 Allocation Strategy Variations Four Ivy 5 variations (equal-weight or volatility-capped, with/without 10-month SMA) produced gross CAGRs of 4.0% to 5.0% and MaxDDs of -4% to -43% (Feb 2006–Jul 2023; ETF proxies); monthly volatility-cap…
- Performance of non-U.S. 60-40 Monthly-rebalanced 60% ACWX/40% IBND ranked below a 50-50 SACEVS Best Value/SACEMS EW Top 2 mix on all six gross statistics, including CAGR and Sharpe ratio (May 2010–May 2023; frictions ignored;…
- Boosting Retirement Outcome via Capture of Factor Premiums Simulated retirement portfolios tilted to size, value and profitability (Dimensional US Adjusted Market 1) cut failure rates versus CRSP 1-10 (4.7% to 2.5% historical; 19.9% to 12.9% conservative), gross of…
- Global Safe Retirement Withdrawal Rate A 4% real withdrawal rate for a couple retiring at 65 with a 60% domestic stocks/40% bonds portfolio showed a 17.4% ruin probability using 38 developed countries versus 3.5% using…
- Endowments Now Just Passive Stock Market Investors? U.S. educational endowments (100+ with over $1B) underperformed regression-based benchmarks of Bloomberg Aggregate, Russell 3000 and hedged MSCI ACWI ex-U.S. (alpha -2.2% annually over 13 years; -4.2% over last six;…
- Dynamic Retirement Portfolio Sustainable Withdrawal Rate Retirement withdrawal failure rates vary widely by country; for a 4% initial withdrawal and annually rebalanced 60/40 stocks/bonds, failure ranged 1.1% (Canada) to 67% (Italy), 4.4% for the U.S. (21…
- Retirement Income Planning Model Murguia and Pfau develop a six-scale questionnaire mapping retirement preferences to four strategies via risk aversion and flexibility dimensions (survey of 1,478 RetirementResearcher.com readers; 2021; conceptual framework).
- Combining an All Weather Portfolio, Crash Protection and Unemployment Trend RAA strategy (unemployment trend + crash protection signals switching between All Weather-like risky and bond defensive portfolios) achieved 9.7% CAGR with 6.9% volatility and 4.9% max drawdown (Dec 1970–Nov 2020;…
- Overcharging for Target-Date Funds? TDF replications using low-cost Vanguard ETFs outperformed original target-date funds by 1.28% annually (2006-2017; matched via return correlations; two-thirds from lower fees, one-third from eliminating cash drag).
- Market Impacts of Growth in Target Date Funds Target Date Funds dampen S&P 500 momentum by ~20%, with monthly autocorrelation turning significantly negative during 2010-2019 vs prior decades (2008-2018; contrarian rebalancing against asset class performance).
- Allocations and Returns of Endowments U.S. endowments underperformed SPY (5.3% vs 13.5% average net annual return; 2009-2018; manually categorized allocations; 34,170 funds). Large endowments outperformed small ones, with $100M+ funds achieving 7.6% vs 3.8% for…
- Tax-efficient Retirement Withdrawals DiLellio and Ostrov develop a tax-efficient retirement withdrawal algorithm outperforming conventional strategies, finding dividends create large negative effects in taxable accounts (2018; deterministic model with varying assumptions).
- Optimal Retirement Glidepath with Trend Following Trend following overlay improved 60/40 stock-bond retirement portfolios (6.4% vs 6.0% median PWR; 1926-2016; 10-month SMA on S&P 500/bonds, monthly rebalancing; 30-year horizons).
- A Few Notes on Your Complete Guide to a Successful and Secure Retirement Swedroe and Grogan recommend 3% annual withdrawal rates at age 65, passive investment vehicles with multi-factor exposure, and tax-efficient spend-down (taxable first, then tax-deferred, finally tax-exempt accounts; 2019 book).
- Coverage Ratio and Asymmetric Utility for Retirement Portfolio Evaluation Estrada and Kritzman find optimal retirement portfolios average 91% stocks across 21 countries using coverage ratio and asymmetric utility (1900-2014; 30-year overlapping periods; annual rebalancing).
- Unbiased Performance of Endowment Investments Non-profit endowments underperformed a 60%-40% U.S. stock/Treasuries mix by 3.86% annually (6.6% vs 10.46%; 2009-2016; 28,696 organizations; even top universities earned near-zero alphas).
- Retirement Withdrawal Modeling with Actuarial Longevity and Stock Market Mean Reversion Rosenthal finds actuarial longevity estimates and mean-reverting stock returns boost 4% withdrawal success rates to 99% vs 90% under fixed 30-year retirement assumptions (1926-2017; Monte Carlo simulations; in-sample analysis).
- Monthly Rebalanced Shorting of Leveraged ETF Pairs Shorting pairs of 3X/-3X leveraged ETFs generated positive monthly returns for four of six pairs studied (FAS/FAZ, TNA/TZA, JNUG/JDST, ERX/ERY averaging >1% monthly; 2007-2016; monthly rebalancing to equal short positions).
- Trend-following Managed Futures to Make Retirement Safer? 50-50-10 retirement portfolio with trend-following managed futures achieved 4.14% SAFEMAX versus 4.01% for conventional 50-50 stocks-Treasuries (30-year periods 1926-2012; gross of fees).
- Trend Following to Boost Retirement Income SMA10 trend following substantially boosts retirement portfolio performance, with trend following versions of all tested portfolios showing higher reward/risk ratios and suppressed maximum drawdowns (1970-2015; UK assets; Perfect Withdrawal Rate…
- How Large University Endowments Allocate Investments Large university endowments shifted toward alternatives from 23% (2000) to 51% (2014), with endowments over $1B reaching 57% allocation (50 endowments; 2015 disclosures; descriptive analysis).
- Early Retirement Safe Withdrawal Rate ERN finds safe withdrawal rates under 3.25% for early retirement (60-year horizons; 75-100% stock allocation; zero volatility assumption; theoretical analysis with Shiller-style real returns).
- Trend Following for Retirement Portfolio Allocations T8 and T12 trend following (monthly rebalancing among stocks/bonds/cash based on 8- or 12-month EMAs) improved U.S. retirement portfolio outcomes but showed mixed results for UK/Japan (1865-2015 U.S.; 30-year portfolios;…
- Bogle’s Razor Bogle's model predicts 6% annualized U.S. stock returns over the next decade (2.1% dividend yield + 5% earnings growth - 1% P/E mean reversion) with 0.81 correlation to actual outcomes…
- Adequacy of Publicly Available Retirement Planning Tools 25 of 36 publicly available retirement tools failed to warn a test couple of retirement plan inadequacy, using only 57% of theoretically important inputs on average (2016 survey; benchmark scenario…
- Mimicking University Endowment Asset Allocations Yale endowment clone underperformed actual Yale endowment (9.0% vs 14.0% CAGR; 1998-2014; ETF/index proxies, annual rebalancing) but outperformed 60-40 stocks-bonds benchmark (14.2% vs 11.1% CAGR; 2003-2015).
- Reverse Mortgage as Retirement Strategy Component Pfau's Monte Carlo simulations show reverse mortgage coordination strategies (opening credit lines early but using selectively) reduce retirement plan failure rates compared to last-resort usage (Monte Carlo; 40-year retirements; $1M…
- Comparison of Variable Retirement Spending Strategies Actuarial retirement spending strategies outperformed rule-based methods, supporting 4.01%-4.57% initial spending vs 2.85%-4.95% (10,000 Monte Carlo simulations; 50% stocks/50% bonds; 30-year horizon; calibrated to 10% probability of real spending below…
- Global Stocks-bonds Glidepath during Retirement 100% stocks and 60-40 stocks-bonds strategies tie for lowest failure rates during retirement globally, with 100% stocks providing higher upside potential (81 overlapping 30-year periods; 1900-2009; 4% withdrawal rate, 19…
- Options for Retirement? Foltice argues option-based retirement strategies (TIPS core + long-term at-the-money index calls) never fail at 75% income replacement vs conventional allocations failing ~25% of time (age 60-65; simulations based on…
- Retirement Income Modeling Risks Different modeling assumptions for retirement portfolios produce starkly different failure probabilities, ranging from 8% to 53% across 30 simulations (five market scenarios, six sophistication levels).
- Retirement Allocation Strategy Informed by P/E10 Valuation-based retirement allocation strategies using P/E10 thresholds (67%/133% of median) improve worst-case withdrawal rates vs fixed allocations (1871-2013; 30-year overlapping retirement periods).
- Improving the Conventional Retirement Glidepath The conventional 80→20 glidepath underperformed inverse 20→80 and 50-50 strategies across terminal value and annuity metrics (1871-2011; 101 investment experiences; annual rebalancing).
- Retirement Allocations to Floor and Surplus Portfolios Scott and Watson argue a floor-leverage rule optimizes retirement allocations, linking 85% safe assets plus 15% leveraged equity (3X) to near-optimal outcomes (theoretical; assumes 2% real bond returns, 6% equity…
- Safe Retirement Portfolio Withdrawal Rate as of April 2013 The paper argues that current high valuations (P/E10 of 22) and low bond yields (2%) reduce safe withdrawal rates below the conventional 4%, with 4% showing only 48% success probability…
- Safe Retirement Withdrawal Rate? Under current low-yield conditions (4.6% stocks, -1.4% bonds real returns), the 4% withdrawal rule yields 57% failure rates over 30 years; safe rates drop to 2.2% for 95% success (Monte…
- University Endowment Research Summary University endowments outperformed 60% S&P 500/40% Treasuries benchmark in most years, with elite endowments showing persistent performance (survey of research through 2013; self-reported annual data).
- University Endowment Performance: Strategic versus Tactical Allocation Barber and Wang find strategic asset allocation drives endowment outperformance, with Ivy League generating 3.2% annual alpha vs 2-asset benchmark but only 0.02% vs 5-asset model (1991-2010; 279 endowments).
- Benefit of Tax-deferred Retirement Savings? Tax-deferred retirement savings reduce expected average annual lifetime federal income tax rate by 1-2% for typical U.S. workers (1950-2010; lifetime optimization model; constrained by limited tax progressivity and Social Security…
- John Bogle Updates His Beliefs Bogle reaffirms his 1999 principles in his 2009 update, noting passive index funds continued outperforming active peers and fund costs often reached 2.5% annually versus his earlier estimates (1999–2009).
- Allocating Assets for Retirement Stacked portfolios and partial annuitization strategies reduced portfolio exhaustion risk versus 40/60 benchmark allocation (Monte Carlo simulation; 2009 study; 1% fees, 3% inflation assumptions).
- A Few Notes on The Ivy Portfolio: How to Invest Like the Top Endowments and Avoid Bear Markets The Ivy Portfolio's enhanced endowment emulation strategies (momentum timing via 200-day moving averages, tactical rotation) achieved competitive annualized returns versus Harvard/Yale endowments (Jun 1985–Jun 2008; gross returns).
- Invest Like the Ivy League? Ivy Plus schools outperformed other endowments (14% vs 9% average annual returns; 1992-2005; contrarian approach with heavy alternative asset allocations; 1,300+ university endowments).
- Unbalanced Attention? Peng and Xiong's May 2005 model argues investors allocate disproportionate attention to market and sector information over company-specific data, and that company-specific news is associated with less co-movement and more…
Risk parity
9 articlesWeighting assets by risk instead of dollars.
- Inverse-volatility Weighting of Volatility Assets Inverse-volatility weighting of long volatility assets was associated with higher gross Sharpe ratios than constant-weight benchmarks (variance swaps 1.61-1.76 vs 1.54; 1990-2023; VIX futures 2004-2023; S&P 500 straddles 1996-2022; monthly;…
- Making Minimum Variance Stock Portfolios Work Minimum variance portfolios with dynamic correlation forecasting outperformed equal weighting gross of fees, but only long-only versions with relaxed rebalancing beat equal weighting net of 0.2% transaction costs (1970–2013; 7…
- Combining Trend Following and Risk Parity across Asset Classes Long-short trend following with risk parity weighting outperformed inverse volatility weighting (1.48 vs 1.31 gross Sharpe ratio; Jan 1987–Dec 2013; 12-month momentum across 35 futures; monthly rebalancing).
- Secular Headwind for Risk Parity? Risk parity portfolios benefited from unprecedented bond yield decline since 1982 (14.6% to 1.91% by 2013), with rising yields potentially creating headwinds (1994–2013; descriptive; not a trading test).
- Risk Parity Strategy Performance When Rates Rise Risk parity outperformed conservative benchmark (60% bonds/30% stocks/10% commodities) but underperformed aggressive benchmark (40% bonds/40% stocks/20% commodities) during rising rates (Jan 1970–Apr 2014; daily rebalancing).
- When (for What) Risk Parity Works Risk parity allocation improves Sharpe ratios for stocks and high-yield bonds but not investment-grade or government bonds, driven by volatility clustering and fat tails (1988-2012; I-GARCH volatility targeting at 5%).
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- Overview of Risk-based Investment Allocations Jurczenko et al. provide a theoretical framework categorizing risk-based allocations by sensitivity to variance/correlation estimates and volatility tolerance, with MV most defensive and EW least sensitive (2002–2012; MSCI World stocks;…
- Assessment of Risk Parity Asset Allocation Risk parity outperformed traditional balanced allocation (3.2% vs 3.4% return but 1.00 vs 0.55 Sharpe ratio; Aug 1992–Jun 2012; daily rebalancing; equity/bond/commodity futures across 5 regions).
- Risk-based Allocation to Frontier Equity Markets Risk parity allocated ~70% to frontier markets vs ~2% market-cap weighting pre-crisis, outperforming during rises but underperforming in crisis (Jun 2002–Nov 2011; weekly returns, 5-year rolling windows).
Tactical allocation
45 articlesShifting among assets with signals and regimes.
- Growth-inflation Regimes and Asset Class Returns Claude-generated charts of annual SPY, TLT, VNQ, GLD and DBC returns across four growth-inflation regimes show no obvious patterns; stagflation favored TLT and GLD but spans only four years (2006–2025;…
- Regime-Optimal Trend Following Regime-dependent optimal allocation (OPT) improved gross Sharpe ratios versus conventional time series momentum in both 2-regime and 4-regime models (U.S. equities from 1926, 14 other countries from 1975, factor portfolios…
- Tactical Signals from a Gold/Silver Ratio? GLD/SLV:SMA12 switching (hold SLV when the GLD/SLV price ratio is above its 12-month SMA, else GLD; monthly) showed higher gross CAGR than GLD, with higher volatility and deeper MaxDD (April…
- Gold Price Regime Changes? Gold showed -0.02 average and 0.20 maximum 10-year rolling monthly return correlation with the S&P 500 Index (Jan 1975–Mar 2025); gold ETF demand correlates 0.71 with gold returns (descriptive; not…
- Extension of “A Quantitative Approach to Tactical Asset Allocation” Faber's five-index SMA200 tactical allocation strategy (monthly; S&P 500, MSCI EAFE, 10-year Treasuries, GSCI, NAREIT; T-bills when below) earned 6.0% gross CAGR, 0.68 Sharpe in Jan 2006–Mar 2025, versus 11.7%…
- Update of a Lumber/Gold Risk-on/Risk-off Strategy The L-G Strategy (weekly SPY if 13-week CUT return exceeds GLD return, else TLT) had mixed results relative to SPY, including a 2022 crash and 116 SPY-TLT switches (weekly data,…
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- Cheap Options for Stock Market Crash Protection Cheap put portfolio hedged S&P 500 better than index puts (7.6% vs 5.1% gross annualized return; Sharpe 0.60 vs 0.42; Jan 1996–Dec 2020; monthly rebalanced; cheapest 20% of ~10-delta single-stock…
- Simplified Offensive, Defensive and Risk Mode Identification Momentum Strategy HAA-Balanced (TIP-signaled offensive/defensive switch across SPY/IWM/VWO/VEA/VNQ/DBC/IEF/TLT, monthly, 0.1% one-way costs) had 15.9% CAGR, -9.7% max drawdown, 1.21 Sharpe, but 8.5% CAGR over the last 10 years (Dec 1970–Dec 2022; modeled…
- Equity Factors Come and Go with Economic Regimes? Adjusting for the secular interest rate decline, 14 of 153 accepted equity factors (9%) were false positives and 63 (41%) robust, versus 100 of 1,395 candidate anomalies (7%) false positives…
- Complex Offensive/Defensive Asset Class Momentum Bold Asset Allocation (BAA-G12; monthly-rebalanced offensive/defensive ETF momentum, 0.1% one-way frictions) produced 14.6% CAGR, -8.7% max drawdown and 472% turnover (Dec 1970–Jun 2022; modeled pre-inception returns); last-10-year CAGR was 7.8%.
- Asset Class and Factor Premium Performances Across Inflation Regimes Global equity and bond gross returns fall in high inflation, with stagflation equities averaging -7.1% nominal, while long/short value, momentum, low-risk and quality/carry premiums stay positive across regimes (1875–2021; gross…
- EEM Risk-on and TLT Risk-off Follow the Leader (monthly hold of EEM after a positive prior-month SPY return, else TLT) beat buy-and-hold SPY in 9 of 19 April-to-April years, with wins concentrated early (gross of…
- Combining Defensive-in-May and Sector Momentum Seasonal-Momentum (cyclical Nov–Apr, defensive May–Oct; top 6-month-return fund per group, semiannual rebalance) beat buy-and-hold SPY on gross CAGR (13.5% vs 10.6%; MaxDD -17% vs -40%; Oct 2006–Oct 2021), but momentum…
- Combining Defensive-in-May and Sector Reversion A seasonal/sector-reversion strategy (lowest 6-month-return cyclical fund Nov–Apr, lowest-return defensive fund May–Oct; semiannual rebalance) outperformed buy-and-hold SPY (12.7% vs 10.6% gross CAGR; Oct 2006–Oct 2021; in-sample).
- Defensive-in-May Sector Rotation Cyclical-to-defensive sector rotation (cyclicals plus small caps Nov–Apr, defensive sectors May–Oct) outperformed buy-and-hold NAESX and equal-weighted Sector EW (gross CAGR 11.2% vs 10.0% and 8.6%; Apr 1999–Oct 2021; semiannual, in-sample).
- Update of Credit as a Tactical Asset Allocation Signal Credit-informed 120/20 strategy (120% long S&P 500 when undervalued vs. Single-B high-yield spread, 20% short when overvalued) outperformed the S&P 500 (22.2% vs 15.3% CAGR; 10 years ending June 2021;…
- Updating Evidence on Equity Index Covered Calls and Protective Puts Covered calls on SPY outperformed SPY buy-and-hold (up to 0.49% monthly gross advantage; Mar 1993–Sep 2020; monthly at-expiry options, 5% OTM to 2% ITM; Black-Scholes pricing), while protective puts underperformed.
- QQQ:IWM for Risk-on and GLD:TLT for Risk-off? QQQ:IWM-GLD:TLT switching strategy (S&P 500 SMA200 signal) outperformed SPY gross but underperformed net (6.7% vs 8.8% CAGR with frictions; Nov 2004–Nov 2020; risk-on/risk-off allocation).
- Cyclical-Defensive Sector Rotation Based on VIX Level VIX-based cyclical-defensive sector rotation generated higher reward-to-risk than S&P 500 (0.71 vs 0.54; Jan 2005–Oct 2020; 100% allocation to favored sectors, equal-weighted, rolling optimization; gross returns).
- Shorting VXX with Crash Protection VXX shorting with monthly crash protection (switching to cash after negative returns) generated attractive returns but still suffered material drawdowns (Feb 2009–Mar 2020; Fixed Reset strategy preferred).
- Testing Tactical Investment Rules Lopez de Prado argues Monte Carlo simulation outperforms walk-forward and resampling for testing tactical rules, linking synthetic datasets to more robust strategy evaluation (theoretical framework; 2019 paper).
- Multi-class Momentum Portfolio with “Canary” Crash Protection DAA outperformed VAA by CAGR across 3 of 4 asset universes but with higher maximum drawdowns (Mar 2008–2018; separate canary universe of VWO/BND for crash protection; in-sample optimization 1971–1993).
- Putting Strategic Edges and Tactical Views into Portfolios A three-step portfolio optimization approach (strategic factor tilts plus tactical timing) outperformed benchmarks (8.9% vs 5.5% gross annual return; Jan 2000–Jun 2017; monthly rebalancing of five equity factors).
- Conservative Breadth Rule for Asset Class Momentum Crash Protection VAA breadth momentum strategy outperformed benchmarks (10-16% vs 7-8% CAGR; out-of-sample 1993-2016; breadth-based crash protection with optimized thresholds; 12 global asset classes).
- Do Protective Equity Index Puts Work Well? CBOE S&P 500 5% Put Protection Index underperformed equivalent-return stock-cash allocation (2.5% vs 2.5% CAGR but deeper drawdowns -32.1% vs -20.9%; Jul 1986–May 2016; monthly 5% OTM puts vs optimized…
- Do Conventional SMAs Identify Gold Market Regimes? SMA-based regime indicators work for gold early in sample but fail since 1990, while consistently identifying S&P 500 regimes throughout (Jan 1973–Apr 2016; 200-day SMA and 50/200-day combination tests).
- Dual Momentum with Multi-market Breadth Crash Protection PAA2 (dual momentum with high crash protection) outperformed 60/40 (10.4% vs 8.2% CAGR; 1993–2015 out-of-sample; monthly rebalancing of top 6 risky assets from 13-ETF universe with breadth-based safe allocation; 0.1%…
- Combining SMA Crash Protection and Momentum in Asset Allocation Combining 10-month SMA trend following with volatility-weighted momentum screens outperformed equal-weight allocation (14.5% vs 6.6% gross annualized return; Jan 1993–Mar 2015; top 20 of 95 global assets, cash filter; monthly…
- Tactical U.S. Stock Market Allocations Based on Valuation Ratios Tactical allocation strategies based on D/P, P/E, and CAPE ratios generally matched or underperformed the 60-40 benchmark on a gross basis (1920-2014; annual/monthly rebalancing with 1SD/2SD triggers; S&P 500/T-bills).
- Survey of Recent Research on Factors, Regimes and Robustness Homescu surveys recent research finding multi-factor portfolios can generate smooth performance while capturing risk premiums, with regime-switching models enhancing timing and robustness testing reducing overfitting (conceptual survey; no empirical tests).
- Long-run Test of a Tactical, Tractable MPT Golden EAA strategies outperformed S&P 500 and equally weighted benchmarks (Sharpe ratios 0.60-0.97 vs 0.32-0.48; out-of-sample Apr 1964–Aug 2014; momentum-driven MPT across 7/15/38 asset universes).
- Crash Protection Strategies The paper categorizes tail risk protection into diversification, all-weather, hedging, and alternative alpha strategies, noting that dynamic hedging may boost long-term returns (conceptual framework; no specific backtest data).
- Relative Strength of 10-year and 30-year Treasuries as Regime Indicator TRRS outperformed buy-and-hold stocks (32% cumulative for TRRS10, 58% for TRRS30; Apr 1977–Dec 2013; monthly switching between stocks/Treasuries based on 10yr vs 30yr Treasury relative performance).
- Tactical, Simplified, Long-only MPT with Momentum MAA (tactical MPT using 4-month momentum, shrunken volatility estimates) outperformed equally weighted benchmarks (9.3% vs 6.7% annualized return, 1.1 vs 0.3 Sharpe ratio; Nov 1997–Nov 2013; 7-asset universe).
- Using Multi-asset Correlations to Define Market Regimes Multi-asset correlations shifted from four pre-2008 regimes (8-9 distinct asset groups) to post-Lehman regime dominance with only two groups, suggesting risk-on/risk-off paradigm (25 futures series; Jul 1998–Jan 2013; descriptive study).
- Diversifying Across Tactical Asset Allocation Strategies Gupta and Skallsjo argue diversifying across tactical asset allocation strategies (alpha-only, economic view, risk-based, fundamental systematic, long-term risk premia) may improve risk-adjusted performance beyond traditional asset class diversification (Sep 2000–Sep…
- Asset Allocation Combining Momentum, Volatility, Correlation and Crash Protection FAA strategy combining momentum, volatility and correlation rankings outperformed equal-weighted benchmark (14.7% vs 5.6% annualized return; Jan 2005-Dec 2012; top 3 of 7 asset class funds monthly).
- Stable Expected Shortfall Tactical Asset Allocation Framework Risk-based tactical allocation using expected shortfall outperformed passive diversified portfolio (equity-like returns with lower volatility; 2000–Aug 2011; weekly rebalancing across 10 global indexes; net 2% vs 0.6% fees).
- Stock Market Volatility by Bull-Bear Regime Volatility more consistently aligns with SMA-based regime classification than returns; 58% of extreme up/down days (>2σ) occur during bear regimes despite bears comprising only 31.7% of time (Jan 1954–Jul 2011;…
- Overview of Financial Market Regime Change Ang and Timmermann review regime-switching models, finding volatility-based regimes often align with policy changes and substantially affect optimal asset allocation (2011 survey; theoretical framework with empirical evidence).
- Credit as a Tactical Asset Allocation Signal Credit-signaled timing strategy outperformed Russell 2000 buy-and-hold (16.1% vs 7.3% annual arithmetic mean; May 1997–April 2011; stocks/cash based on 6-month credit-equity relative valuation; ~28 intervals).
- Out-of-Sample Tests of Bullish Regime 2-day RSI Signals TradingMarkets.com 2-day RSI rules showed mixed results in out-of-sample tests, with XLK averaging 0.25% per trade (70% win rate) and SPY averaging 0.69% per trade (83% win rate; Jan 2007–Mar…
- Four Factors and Two Regimes Two-regime style switching (momentum in low-volatility, value in high-volatility regimes) outperformed consistent styles (1927-2004 out-of-sample backtest; regime identification via multivariate model).
- Stock Market Returns and Inflation: Illusion or Regimes? Lee finds inflation-stock return relationships switched from positive pre-WWII to negative post-WWII, supporting a two-regime hypothesis over inflation illusion (1927-2007; U.S. data; regime analysis).
- Combined Value-Momentum Tactical Asset Class Allocation Combined value-momentum tactical allocation across 12 asset classes outperformed a long-short hedge approach (9% annualized before costs vs benchmarked quartiles; Jan 1985–Sep 2007; 25% 1-month momentum/25% 12-1 momentum/50% valuation weighting,…
Rebalancing and diversification
142 articlesHow often to rebalance and what diversifies.
- AI Panel Equity Diversification Allocations Five AI platforms (Grok, ChatGPT, Claude, Perplexity, Gemini) gave similar SPY/QQQ/IWM/EFA/EEM allocations, with Perplexity most distinctive (prompts end of Aug 2026; 22.3-year backtest of CAGR and MaxDD; descriptive, not a…
- Weighting Investment Bank Asset Allocation Pronouncements How should investors weight investment banker pronouncements on asset allocation as reported in financial media? Can the evolving set of artificial intelligence (AI) platforms based on large language models assist?…
- Are iShares Core Allocation ETFs Attractive? iShares Core Allocation ETFs (AOK, AOM, AOR, AOA) were mostly less attractive than comparably weighted, semiannually rebalanced SPY-LQD mixes, and at 60-40 and 80-20 also than SPY-TLT mixes, on CAGR,…
- Reassessing Use of Machine Learning in Stock Portfolio Construction Elastic net and neural network portfolio gains weaken in recent samples, especially after 2020, and are concentrated in small, illiquid stocks; firm characteristics dominate predictive power (extended through 2023; gross…
- XLE and XLK Mutually Diversifying? XLE and XLK showed low return correlations, and a 50-50 annually rebalanced portfolio had a higher CAGR than either ETF (10.1% vs 9.1% XLE, 9.2% XLK; Dec 1998–Mar 2026; monthly…
- Size Effect-based Hybrid Asset Allocation Strategy HAA 13612 (monthly TIP-return regime: offense in SPY/MDY/IJR by 1/3/6/12-month momentum, else SHY) outperformed buy-and-hold VTI (12.1% vs 10.8% gross CAGR; Sharpe 0.95 vs 0.74; Jan 2005–Dec 2025; monthly rebalance).
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- Managing Rebalance Timing Luck Rebalance timing luck for a monthly Russell 3000 momentum strategy (20 top-quality stocks from the top 100 momentum names among the 1,000 most liquid) is a 3.5% CAGR spread between…
- Musical Diversification? How should investors think about the risks and returns of music royalties, which have become transparent in the streaming era, as an asset class? In their September 2025 paper entitled…
- How to Approach Long-only Equity Factor Allocations Long-only U.S. low volatility had the highest gross Sharpe ratio (0.57) and momentum the highest gross information ratio (0.61); the optimal mix differs by objective (U.S. July 1963–May 2025; global…
- Alpha Relative to Simple Diversified Portfolios Few active funds add utility to a 60% S&P 500 Total Return/40% Bloomberg US Aggregate base portfolio: 12% of 1,203 equity funds and 36% of 47 bond funds; median willingness…
- Exploiting Predictable Institutional Portfolio Rebalancing A strategy trading E-mini S&P 500 and 10-year T-note futures ahead of 60/40 Threshold and Calendar rebalancing outperformed both markets (gross Sharpe 1.08 vs 0.38 stocks, 0.50 bonds; Sep 1997–Mar…
- Static or Dynamic Asset Class Allocations? Success of dynamic asset class allocations assumes that expected asset class returns, return riskiness and investor risk aversion change at least somewhat predictably over time. Are individual investors truly better…
- Less Frequent Reformations/Rebalancings for SACEVS and SACEMS? Quarterly instead of monthly reformation did not improve gross performance of SACEVS Best Value or SACEMS EW Top 2 combinations; SACEMS degraded, SACEVS changed little (monthly data, Jul 2006-Jun 2024;…
- Testing a Countercyclical Asset Allocation Strategy Countercyclical allocation (next-year stock/bond weights tilted against prior-year aggregate fund allocations; annual April rebalance) showed modestly higher Sharpe ratio and lower MaxDD than 60% FFIDX/40% FBNDX (allocations 1984–2023; returns 1985–2024).
- Yield-based Allocation to Stocks and Bonds YBAR (yield-based allocation between S&P 500 and 10-year T-note, monthly assessment) had a higher minimum rolling 20-year real CAGR (1.9% vs -2.3%, -0.4%, 0.1% for monthly rebalanced 6%, 60%, 85%…
- Limited Rebalancing for SACEMS? SACEMS EW Top 2 gross performance was very similar whether rebalanced monthly (Rinse-and-Repeat) or only when two new assets are selected (Let-It-Ride), with a slight, not statistically tested edge for…
- Why Did SACEVS Allocations Just Change So Much? SACEVS (monthly value-premium allocation across SPY/TLT/LQD/cash) shifted to 100% Cash at end of June 2023, as term, credit and equity premiums sat 2.69, 0.53 and 0.12 standard deviations below inception-to-date…
- Equal-weight vs. 19 Other Allocation Strategies Within and Across Asset Classes Across stocks, bonds, commodities and real estate, minimum variance strategies produced higher Sharpe ratios and lower VaR than equal weighting in multi-class portfolios, while mean-variance strategies did not consistently beat…
- Sensitivity of Put-Spread Collar Performance to Rebalancing Schedule JAN/APR/JUL/OCT (JAJO) put-spread collars on the S&P 500 beat FEB/MAY/AUG/NOV (FMAN) by 1% gross annualized (40% cumulative), with 0.8% lower volatility; rebalance timing luck is about 2.9% annually (2008–2022; gross…
- Long Run Performance of Currently Popular Allocation Strategies Among seven allocation strategies, Endowment had the highest cumulative gross return and Dynamic Asset Allocation (11-month momentum, U.S. large caps vs. aggregate bonds, volatility-targeted, monthly) the shallowest maximum drawdown (Dec…
- Testing a Term Premium Asset Allocation Strategy Term Spread Strategy (monthly 10-year minus 3-month Treasury spread: 2% TLT/VNQ) trailed 50-50 SACEVS Best Value/SACEMS EW Top 2 on most aggregate measures, with a -40% maximum drawdown (Jun 2006-Nov…
- Lucky Test Portfolio Construction Decisions? Original researcher portfolio construction decisions are associated with 0.099% monthly gross return bias, 18.2% of predictability (92 published predictors; 12 decisions; 1926–2021; in-sample 0.545% vs random-decision 0.340%, out-of-sample 0.309% vs…
- Trend Following Plus Relative Sentiment for Stocks-Bonds Allocation Over Nov 1994–Aug 2022, a 50-50 mix of trend following (10-month SMA, U.S. stocks/aggregate bonds) and relative sentiment (weekly COT/Sentix) thinned return tails versus each component, but relative sentiment alone…
- Optimal Bitcoin Allocations Adding BTC to a 100% alternatives portfolio (HFRX Global Hedge Fund Index, SG Macro Trading Index, SG CTA Index, GLD) raised gross annual return to 5.0% from 3.0% (Jul 2010–Aug…
- Update of Findings for a Highly Influential Asset Allocation Paper QA-TAA (10-month SMA timing on SPY/TLT/EFA/DBC/VNQ ETFs, equal-weighted, monthly rebalanced) beat SPY in 4 of 15 full years and SPY:SMA10 in 8 of 15 (returns Dec 2006-Jun 2022; 0.1% switching…
- Investor Preferences and Bitcoin Allocations Modeled BTC allocations are positive for investors with positive-skewness preferences: power utility and CPT investors both allocate 3% to BTC under low bliss-regime probabilities (BTC, S&P 500, Treasury Index monthly…
- Testing a SPY-EEMV-VT-TLT-PBBBX Allocation Strategy The annually rebalanced SPY-EEMV-VT-TLT-PBBBX allocation (25/10/15/25/25) was not preferable to 50-50 SACEVS Best Value/SACEMS EW Top 2 on a gross basis, with both showing reasonably attractive Sharpe ratios (Dec 2011–Jun…
- Stock Portfolio Periodic Rebalancing vs. Buy-and-Hold Is periodic rebalancing of a stock portfolio advantageous? In his May 2021 paper entitled "Does Volatility Harvesting Really Work?", Magnus Pedersen compares performances of periodic rebalancing versus no rebalancing (buy-and-hold)…
- SPY-TLT Allocation Momentum? SPY-TLT allocation momentum (daily choice among 11 SPY/TLT mixes by best 63-day mean-to-standard-deviation return ratio) sees even low frictions materially reduce CAGR (Jul 30, 2002–Apr 20, 2021; 1,187 allocation changes;…
- Ascendance of Automated ETF Allocation Models Investors seeking low-cost, automated, tax-efficient and potentially alpha-generating solutions increasingly follow model portfolios of exchange-traded funds (ETF). Is there a top-down way to characterize those models? In their November 2020…
- Diversifying across Growth/Inflation States of the Economy Adding a defensive economic factor overlay to a classic 60%/40% portfolio improved annualized return and Sharpe ratio while reducing maximum drawdown in-sample (Jan 2006–May 2020; perfect foresight modeling).
- Update on Classic Portfolio Allocations with Leveraged ETFs A 40% TQQQ/20% TMF/40% TLT leveraged portfolio generated 24.5% average annual return with 22.8% volatility (Aug 2005–Jan 2021; monthly rebalancing; last 3 years out-of-sample).
- Asset Class Return Expectations and Allocations of Sophisticated Investors U.S. pension funds exhibit return extrapolation bias, with 1% higher past-year return raising expected returns 0.25% (228 funds; 2014-2017; correlation analysis, not trading test).
- The Decision Moose Asset Allocation Framework Decision Moose outperformed SPY (15.9% vs 8.7% CAGR; 8/30/96–9/30/19; momentum-based allocation across 9 asset classes, 5.3-7.5 switches/year) but underperformed markedly post-2009 with deteriorating alpha trend.
- Best Factor Allocation Strategy? Equal-weighted factor allocation outperformed cash (0.71 Sharpe ratio, -8.2% max drawdown) and generally matched sophisticated strategies across 10 factors (Jan 2001–Dec 2018; factor hedge portfolio).
- Risk Premium Allocation Tail Diversification Vatanen and Suhonen argue tail correlations differ from full-sample correlations for alternative risk premiums, linking extreme equity/bond returns to higher ARP betas (Jan 2007–May 2018; conceptual framework).
- Rebalance Timing Noise Rebalance timing materially affects 60-40 performance, with 0.36% standard deviation across monthly schedules (8.49% vs 8.27% annualized return for May vs October; Jan 1922–Jun 2018; equally weighted staggered portfolios suppress…
- U.S. Equity Turn-of-the-Month as a Diversifying Portfolio TOTM portfolio (buys last trading day, sells 3rd day of next month) generates 2.4% average annualized net CER as diversifier across asset allocation methods (Jul 1961–Dec 2015; 0.50% equity trading…
- Currency Exchange Style Factors for Incremental Diversification Currency exchange carry, value and momentum strategies improved risk-adjusted returns when added to conventional asset portfolios (1999–2016; G10 currencies; European investor perspective with dollar/euro hedging).
- Diversify with Crypto-assets? Crypto-assets improved Sharpe ratios when added to traditional portfolios, with even a 1% allocation showing material benefits (Apr 2013–Nov 2017; top 10 coins/tokens; quarterly rebalancing; correlation analysis confirms crypto as…
- Shorting Equity Options to Automate Portfolio Rebalancing Option overlay rebalancing matched 60-40 SPY/bond daily rebalancing (5.23% excess return, 0.53 Sharpe vs monthly rebalancing 5.12%, 0.52 Sharpe; 1996-2015; short OTM calls/puts, ~15-day maturity).
- How Best to Diversify Smart Betas Integrated multifactor portfolios outperformed mixed approaches (13.6% vs 11.8% gross annual return; Jun 1968–Dec 2016; integrated selects top 20% stocks by average factor scores vs mixed holds equal-weighted single-factor portfolios;…
- Global Smart Beta Strategy Diversification Global equity factor hedge portfolios achieve 30% average volatility reduction through regional diversification, with profitability showing strongest benefit and momentum weakest (Oct 1990–Feb 2016; 8 regions; 5 factors).
- Optimal Rebalancing Frequency/Months? Annual rebalancing matched semiannual/quarterly performance for 60% SPY/40% VBMFX portfolios (8.1% vs 8.0% CAGR; Jan 1993–Jun 2017; end-February/March timing showed slight advantage).
- Equity Factor Diversification Benefits Cross-country equity factor diversification reduces portfolio volatility by 20%-60% depending on factor, with international diversification roughly doubling gross Sharpe ratios (6 factors across 20 developed markets; Jan 1991-Apr 2015).
- Simple Asset Class Allocation Strategy Horse Race SPY:SMA10-VFITX outperformed seasonal SPY-VFITX (11.1% vs 8.9% CAGR; Jan 1993-Jan 2017; switches based on 10-month moving average vs calendar; monthly rebalancing).
- Disappearance of Diversification Diversification indexes for equity, government debt and REIT markets declined from 100 in late-1990s to 50-60 range by 2012, associated with rising return volatility (40 indexes, 23 countries; 1986-2012).
- Combining Asset Class Diversification, Value/Momentum and Crash Avoidance Trinity portfolio outperformed 60-40 (11.4% vs 9.0% CAGR; 1973-2015; 50% value/momentum screened assets, 50% trend-following overlay; combines global diversification, factor tilts, crash protection).
- Twisting Buffett’s Preferred Stocks-bonds Allocation Internationally Buffett's 90-10 allocation averaged slightly lower terminal wealth than 100-0 but marginally lower failure rates across 21 countries (86 rolling 30-year periods, 1900-2014; dynamic twist offered mixed modest improvements).
- Contrarian Sports Betting as a Diversifying Investment Contrarian horse racing strategy outperformed S&P 500 (1.12 vs 0.69 Sharpe ratio; 2010-2016; betting against top 4 favorites per race; 57,000 UK races) with uncorrelated returns.
- Mean-Variance Asset Allocation for Individual Investors Mean-variance optimization of eight asset classes yields optimal portfolios dominated by bonds (76%) and gold (8%), dramatically differing from conventional allocations (Sep 1998–Jun 2015; in-sample analysis).
- Countercyclical Asset Allocation Strategy Countercyclical allocation (inverting aggregate allocations) outperformed 60-40 during turbulent equity periods (7.6% vs 7.1% CAGR; 1990-2015 world stocks/bonds; annual rebalancing).
- A Few Notes on Adaptive Asset Allocation Adaptive Asset Allocation argues regime-diversified portfolios with risk parity and momentum enhance returns while controlling drawdowns, reporting 15.0% returns with -8.8% max drawdown (10-asset universe; 1995–present; integrated volatility/correlation/return forecasts).
- Twisting Buffett’s Preferred Stocks-bonds Allocation Buffett's 90/10 stocks/bonds allocation had 2.3% failure rate vs 0% for 60/40 (86 rolling 30-year retirements, 1900-2014; 4% withdrawal rule); two timing "twists" matched 90/10's failure rate with modest upside…
- Frontier Government Bonds as Diversifiers Frontier government bonds did not materially reduce portfolio volatility beyond emerging bonds despite 7.85% yields (Dec 2001–Dec 2013; mean-variance optimization; 29 markets in JPM Next Generation Index).
- Multi-class RSI-based Dynamic Asset Allocation Dynamic RSI-based rotation to Top 5 assets within fixed allocations outperformed passive benchmarks (13.8% vs 11.2% CAGR for 50/30/20; 1991-2014; monthly equity, annual fixed income, quarterly hedge fund rotation; gross…
- Sector vs. Factor U.S. Stock Diversification? Factor investing narrowly outperforms sector investing when short sales allowed, but outcomes are mostly draws across diverse market conditions (Jul 1963–Nov 2014; sectors show lower 0.62 vs 0.92 average correlation).
- Timing of Asset Class Allocations by Multi-class Funds Multi-class mutual funds show poor asset allocation timing, with only ~7% exhibiting statistically significant skill across equity, government bond, and corporate bond allocations (617 funds; 2000-2012; US/UK/Canada).
- Dependence of Optimal Allocations on Investment Horizon Sharpe ratio-optimal stock allocation increases with investment horizon when preserving historical autocorrelations (40% at 1-year to 85% at 25-year horizons; 1926–2012; simulation with annual rebalancing).
- Simple Asset Class ETF Momentum Strategy as Diversifier SACEMS (5-month momentum across 9 ETFs/cash) shows moderate diversification with SPY (0.29 correlation; Jan 2003-Jan 2015), with 50-50 combinations improving Sharpe ratios but underperforming standalone SACEMS.
- Net Benefits of Diversification Jennings-Payne find investment management fees consume most gross allocation alpha for 5 of 11 diversifying asset classes, with 40% becoming unattractive when fees exceed half of gross alpha (45 asset…
- Average Investor Stock Allocation a Better Predictor than P/E10? Stock allocation timing strategies underperformed buy-and-hold SPY ($6.50 terminal value; Mar 1993–Sep 2014; quarterly rebalancing between SPY/T-bills based on allocation thresholds; 54 strategy variations tested).
- Momentum as Moderator of Portfolio Rebalancing Risk A momentum overlay reduces drawdowns and improves Sharpe ratios for rebalanced 60% S&P 500/40% T-note portfolios (Jan 1990–Feb 2014; complex daily MA crossover with 10% target vol, 400% turnover).
- Optimal Rebalancing Method/Frequency? Rebalancing stocks-bonds portfolios outperformed buy-and-hold by ~5% higher Sharpe ratio for 50%-60% stock allocations; effectiveness largely insensitive to rebalancing method or frequency (100k simulated 10-year paths; 1982-2011; 0.15% transaction costs).
- Mutual Fund Hot Hand Diversification Hot hand strategies (top Fidelity/Vanguard equity funds) underperformed SPY through much of the 1990s but ultimately outperformed, with Vanguard funds dominating rankings (Jun 1993–Jun 2014; annual reconstitution).
- Personal/Social Drivers of Individual Investor Asset Allocation How strong is investor herding with respect to friends, family and co-workers? In their June 2014 paper entitled "Peer Effects, Personal Characteristics and Asset Allocation", Annie Zhang, Ben Jacobsen and Ben Marshall examine…
- Tax Impact on Optimal Allocations Tax-adjusted mean-variance optimization shifts allocations substantially from tax-inefficient assets (hedge funds) to tax-efficient ones (private equity) compared to pre-tax Yale model (2013 allocations; Dec 1998–Jun 2013 covariances).
- Alternative Asset Class ETF Momentum Allocations The EW Top 3 momentum strategy (1.28% monthly return, 3.64% volatility) offers better risk-adjusted returns than pure Top 1 momentum (1.38%, 5.83%) across 9 asset class ETFs (Feb 2006–May 2014;…
- Asset Class Diversification Effectiveness Factors Asset diversification effectiveness correlates most strongly with low cross-correlations (R²=0.62), secondarily with low volatility and high returns (9-asset ETF portfolio; Sep 2006–Apr 2014; exclusion analysis).
- When Rebalancing Works? Hallerbach argues periodic rebalancing generates positive returns when assets have high volatilities, high volatility dispersion, and low correlations, but loses to dispersion effects over longer intervals (theoretical; mathematical derivations).
- Intrinsic Momentum Diversified across Futures Intrinsic momentum strategy (long/short based on 1/3/12-month returns vs risk-free rate) achieved 1.8 gross Sharpe ratio diversified across 58 futures/forwards (Jan 1985–Jun 2012; weekly rebalancing; 40% vol target per position).
- Investment Factor Diversification Factor diversification outperformed asset class diversification across equal-weighting, risk parity, and crash protection methods (U.S./European data; 1929-2012; gross returns ignoring frictions).
- Diversifying and Pair Trading with Volatility Futures VIX and VSTOXX futures improved gross Sharpe ratios when added to stock-bond portfolios, while a regression-based pair trading strategy generated large gross profits over 6 months (Mar 2004–Feb 2012; weekly…
- Diversification Power of Financialized Commodities Financialization reduces commodity futures diversification benefits through lower roll returns (-0.38%/month vs average) and higher stock correlations (1990-2012; mean-variance framework; descriptive analysis).
- U-shaped Lifetime Allocation to Stocks? Pfau and Kitces find rising equity glidepaths outperform declining ones for retirement withdrawals, with optimal allocations of 20-40% at retirement rising to 40-80% later (Monte Carlo simulations; 4-5% withdrawal rates…
- Optimal Allocation to Equities Versus Investment Horizon Blanchett, Finke and Pfau find optimal equity allocation increases with investment horizon, rising 1.3%-2.7% annually depending on risk aversion (20 countries; 1900-2012; utility-based optimization across bills/bonds/stocks).
- Asset Allocation Based on Trends Defined by Moving Averages SMA10 timing across five asset classes outperformed buy-and-hold (10.5% vs 9.9% annualized; 1973-2012; monthly rebalancing; S&P 500/bonds/EAFE/commodities/REITs).
- Diversification Power Failure? Gold-S&P 500-oil correlations increased post-2008 financial crisis with pronounced structural breaks, reducing diversification effectiveness (1987-2012; futures contracts; multiple sampling frequencies).
- Extracting Strategic Benefits from a Commodities Allocation Commodity factor portfolios (momentum, carry, low-risk) outperformed broad commodities and stocks (0.70 vs 0.38 Sharpe; 2002-2012; equally weighted combinations, monthly rebalancing; S&P GSCI universe).
- Simple Tests of PSP as Diversifier Adding PSP to a 9-asset equally-weighted portfolio reduced performance (return-to-volatility ratio 0.11 vs 0.14; Nov 2006–Apr 2013; monthly rebalancing; PSP showed 0.50 average correlation with other assets).
- Simple Tests of RWX as Diversifier RWX did not improve diversified portfolio performance, reducing return-to-risk ratio from 0.13 to 0.11 with 0.53 average pairwise correlation (Apr 2007–Apr 2013; monthly rebalanced EW portfolio vs 9-asset benchmark).
- Simple Tests of DBV as Diversifier DBV showed poor diversification benefits with 0.45 average pairwise correlation and mostly degraded cumulative performance when added to a 9-asset equally weighted portfolio (Sep 2006–Apr 2013; monthly rebalancing).
- Simple Tests of BWX as Diversifier BWX modestly enhanced diversified portfolio performance with 0.40 average pairwise correlation (Nov 2007–Apr 2013; equally weighted monthly rebalanced portfolio vs 9-asset benchmark; 66 monthly returns).
- Simple Tests of HYG as Diversifier HYG did not materially impact EW portfolio performance versus 9-asset baseline (0.13 vs 0.12 return-to-volatility ratio; May 2007–Apr 2013; monthly rebalanced; high 0.45 correlation with equities).
- Simple Tests of TIP as Diversifier TIP did not materially improve diversified portfolio performance, generating comparable returns to equally-weighted 9-asset portfolio with slightly lower volatility (0.21 return-to-risk ratio both cases; Jan 2004–Apr 2013; monthly rebalanced; 112…
- Simple Tests of IEF as Diversifier Adding IEF to a diversified 9-asset EW portfolio marginally reduced returns and increased volatility despite low average pairwise correlation of -0.03 (Jan 2003–Apr 2013; monthly rebalancing; 124 observations).
- Simple Tests of AMJ as Diversifier Adding AMJ to a 9-asset diversified portfolio slightly improved cumulative value with minimal volatility impact (0.35 vs 0.38 return-to-risk ratio; Jul 2009–Apr 2013; equal-weighted monthly rebalancing; 46 monthly returns).
- Simple Tests of USO as Diversifier USO marginally reduced return and increased volatility in equally weighted portfolios, with poor diversification due to 0.87 correlation with DBC (May 2006–Apr 2013; monthly rebalancing; 9-asset baseline).
- Simple Tests of JJC as Diversifier JJC modestly worsened risk-adjusted returns in equally weighted portfolios (0.09 vs 0.10 return-to-volatility ratio; Nov 2007–Apr 2013; monthly rebalancing; 9-asset baseline vs 10-asset with JJC).
- Simple Tests of FRN as Diversifier Adding FRN to a 9-asset equally-weighted portfolio marginally reduced return-to-risk ratio (0.12 vs 0.10) with FRN averaging 0.50 correlation to other assets (Jul 2008–Apr 2013; monthly rebalancing; 58 observations).
- Simple Tests of VXZ as Diversifier VXZ underperformed a 9-asset diversified portfolio (-1.44% vs 0.37% average monthly return; Mar 2009–Apr 2013; equal-weighted, monthly rebalanced; despite -0.29 average pairwise correlation with other assets).
- Simple Tests of VXX as Diversifier Adding VXX to diversified portfolios reduced both return and volatility, with return-to-risk ratio falling from 0.34 to 0.17 (Feb 2009–Apr 2013; equal-weighted monthly rebalancing; 9 asset classes).
- Most Diversified Portfolio Performance MDP outperformed market cap weighting (7.9% vs 2.9% annualized return; 1999-2010; maximizes diversification ratio, semi-annual rebalance; top half MSCI World stocks by market cap).
- Formal Asset Allocation with Price Trending Dubois proposes a three-segment allocation framework explicitly incorporating trend-following: risk-free assets (RB1), liquid risky assets with stop-loss exits (RB2), and buy-and-hold assets (RB3) (qualitative framework; no empirical testing).
- Sources of Asset Class Allocation Alpha The paper argues economic indicators, relative asset valuations, and business cycle timing can generate tactical asset allocation alpha over strategic benchmarks (conceptual framework; no empirical testing).
- Optimally Diversified Currency Carry Trade Mean-variance optimized currency carry trades outperformed naive carry strategies (1.01 vs 0.45-0.60 Sharpe ratio; Jan 1990-Jun 2012; monthly rebalancing across 11 currencies with 5% annual excess return target).
- Testing Volatility-Based Allocation with ETFs VBA underperformed equally weighted ETFs (0.20 vs 0.21 monthly Sharpe ratio; Apr 2003–Aug 2012; VIX 10/30-day SMA + asset class 2/12-month SMA timing; SPY/EFA/EEM/RWR/TLT portfolio with 0.1% switching friction).
- Equity Market Liquidity as an Asset Allocation Signal DAA strategy using Amihud illiquidity changes outperformed 50-50 SAA (higher Sharpe ratios across all six equity proxies; Dec 1980–Sep 2010; 60-40 vs 30-70 allocation based on liquidity threshold).
- Essential Versus Asset Class Risk Allocation Risk parity strategies show considerable variation in dependencies on essential growth and inflation risk factors, with these dependencies changing substantially over time (4 commercial implementations; Jan 1990–May 2012; principal component…
- Volatility-based Equity Market Allocations Minimum Variance with Portfolio Volatility Target outperformed equal-weighted low-P/E10 country indexes (1.09 vs 0.44 gross Sharpe ratio; Apr 1999–Aug 2012; monthly rebalancing; 32 countries).
- How Important Is Strategic Allocation? Strategic allocation accounts for 81% of total fund returns and 88% of return variability, while timing contributes essentially nothing (Vanguard Australian funds; Jan 2003–Jun 2012; return decomposition analysis).
- Diversification Power of Commodities S&P GSCI commodities showed low correlation with global stocks (-0.02) and bonds (-0.08), with Dynamic Roll strategy delivering superior diversification in 50% equity/30% bond/20% commodity portfolios (Dec 1972–Jun 2012; monthly…
- Managed Futures as Portfolio Diversifier Managed futures outperformed hedge funds as portfolio diversifiers for stocks-bonds (-0.15 vs 0.80 correlation with S&P 500; Jun 2001–Dec 2011; monthly rebalancing; Barclay Systematic Traders vs HFRI indices).
- Gold as Diversifier Versus Safe Haven The research examines gold's changing crisis response across major market shocks, finding that initial safe haven reactions may be strengthening but becoming increasingly transient (1987 crash, Sept 2001, 2008 crisis;…
- Tests of Strategic Allocations Based on Risk Metrics Minimum Variance and Minimum Expected Shortfall strategies achieve superior gross return-risk ratios versus Equal Weighting but exhibit highest portfolio turnover (monthly rebalancing; 500-day risk windows; multiple asset universes).
- Fundamentals of Portfolio Weights and Rebalancing Rebalanced 60% stocks/40% Treasuries outperformed individual components ($7.41 vs $6.10 stocks, $7.12 bonds terminal value; 1990-2011; quarterly rebalancing; theoretical framework with limited empirical testing).
- Worst Case Asset Allocation Minimax allocation (worst-case optimization via 250-day Monte Carlo) achieved second-highest gross return and Sharpe ratio among five strategies (1990–2010; S&P 500/bonds/REITs/commodities; annual rebalancing).
- Persistent Usefulness of Emerging Markets in Equity Diversification Emerging markets retain diversification benefits versus developed markets despite increasing interdependence, with tail risk contributions remaining lower for emerging markets (1989–2009; dynamic copula analysis of weekly returns).
- Correlation Timing of Sector Allocations Dynamic correlation timing beats static sector allocation (6.0% to 22.8% annualized gross gains with monthly rebalancing; Jun 2005–May 2007; mean-variance optimization across 10 sectors in Japan/UK/US markets).
- Active Asset Allocation via Drawdown Control REDD-COPS outperformed traditional allocations by roughly 5% annualized (Jan 1991–Jun 2011; out-of-sample drawdown control vs risk-matched portfolios; stocks/bonds/commodities/T-bills with monthly rebalancing).
- Optimized Currency Trading as Portfolio Diversifier Utility-optimized currency strategies outperformed US stocks (16% annual excess return; Feb 1996–Sep 2010; exploiting carry, momentum, reversal signals; 27 developed economies), though returns fade post-2005.
- Melding Momentum, Diversification and Absolute Return Antonacci's composite momentum strategy outperformed equally weighted asset classes (gross Sharpe ratios not specified numerically; Jan 1974–Dec 2011; 12-month momentum across 4 asset pairs with T-bill substitution).
- Diversification with VIX Futures and Related ETNs VIX futures diversification beats equity-only portfolios solely during crisis periods, with VXX declining -92% and VXZ declining -46% since Apr 2009 (Apr 2004-Dec 2011; constant maturity methodology; 3 subperiods).
- How to Beat Equal Weight Asset Allocation? Are there strategic asset allocation methodologies that reliably beat equal weight? In the February 2012 version of their paper entitled "Portfolio Optimization Using Forward-Looking Information", Alexander Kempf, Olaf Korn and Sven…
- Diversifying Across Strategic Allocation Strategies? Strategy diversification across eight minimum variance approaches outperformed equal weighting (20% to 75% higher Sharpe ratios; July 1963–Dec 2008; momentum weighting optimal but high turnover; four industry sets plus 250…
- Fading Diversification Value of Commodity Futures? Commodities-stocks correlations increased across 43 of 45 global equity markets post-2008, with developed market correlations rising from -0.01-0.18 (2000-2007) to 0.14-0.62 (2008-2010) using GSCI vs country indexes.
- Combining Sharpe Ratio and Pairwise Correlation for Diversification Bailey and Lopez de Prado argue portfolio Sharpe ratio improvement depends on both new stream Sharpe ratio and average pairwise correlation with existing streams (theoretical framework; equal risk weighting).
- Pension Fund Real Estate Allocation, Cost and Performance Pension fund REITs outperformed direct real estate (10.9% vs 6.7% annual gross returns; 1990-2009; 884 funds across U.S./Canada/Europe/Australia-NZ) despite lower allocations and costs.
- Adaptive Asset Allocation Policy Lo argues evolutionary market adaptation explains volatility clustering, linking U.S. economic dominance decline to equity volatility regime shifts (1926-2009; theoretical framework with Great Moderation evidence).
- Asset Allocation Strategy Horse Race Risk Parity and Equal Weight strategies produced the most consistent Sharpe ratios across subperiods, both outperforming Mean-Variance and Minimum-Variance approaches (Jan 1980–Jun 2010; 9 asset classes; annual rebalancing).
- Alternative Global Equity Diversification Approaches Global equity diversification via any international index significantly improves U.S.-only portfolios, with emerging market small-cap stocks ($1-5B) providing best incremental benefits (Jul 2002–Feb 2011; mean-variance spanning tests).
- Diversifying with Equity Volatility Exposure? A three-asset portfolio (26% S&P 500, 29% scaled long VIX futures, 44% short variance swaps) outperformed 100% S&P 500 (11.6% vs 0.84% annualized return; Feb 1990–Aug 2008; out-of-sample 2nd subperiod).
- Overview of Research on Asset Allocation in the Face of Disaster Meinerding and Stoyanov et al. find academic research offers little practical guidance for protecting diversified portfolios from systemic risk, with contagion effects potentially offsetting diversification gains (2011 literature reviews).
- Feasibility of Diversifying Equities with Volatility Futures VIX futures diversification of SPY underperformed due to negative volatility risk premium, with longest-maturity strategy showing least negative returns (Mar 2004–Dec 2010; rolling positions).
- Best Global Equity Diversification Approach? Region-industry combinations best balance feasibility and optimality for global equity diversification, with industry groupings increasingly effective over geography (23 developed markets; July 1989–March 2010; R-squared analysis).
- REIT Funds as a Diversifier for Stocks VGSIX-SPY correlation increased materially over time, with REIT diversification capacity essentially disappearing by study end (Jul 1996–Dec 2010; 60-month rolling correlations; descriptive analysis).
- Liquidity in Asset Selection and Asset Class Allocation Damodaran argues that conventional asset allocation and security selection overweight illiquid assets by ignoring trading friction, linking liquidity variations to systematic valuation biases (conceptual framework; descriptive analysis).
- Diversifying within Versus across Hedge Strategies Funds of hedge funds (FoF) diversify investments across hedge funds to achieve steady return streams. Some FoFs diversify within a single hedge fund strategy (category), while others diversify both within…
- Testing Bond Allocation Strategies Bond allocation strategies using FOMC discount rate pivots to time duration and credit exposure enhanced risk-adjusted returns versus benchmarks (1973-2006; high-yield corporate bonds showed 9.56% annual return difference between rate…
- Strategies for Exploiting Index Rebalancing? A reader suggested: "With the annual Russell rebalancing coming later this month, maybe you could post some profitable trading strategies." A search of the Social Science Research Network (SSRN) for…
- Use Short-term Signals to Inform Rebalancing? Informed trading (using weekly reversal signals to time rebalancing) boosted optimal net Sharpe ratio from 0.56 to 0.62 for a country index value-momentum portfolio (1980-2009; 18 developed markets).
- Diversifying Across Equity Anomalies Diversifying across seven equity anomalies outperformed individual anomalies via equal-weighting (Jul 1951–Dec 2008; long-short portfolios on ST reversal/momentum/LT reversal/B-M/C-P/E-P/size; monthly rebalancing).
- Perspectives on Global Equity Diversification Global diversification reduces downside risk progressively with horizon length; 22-country portfolio averaged -35.5% vs -54.5% local worst annual returns (1950-2008; equally weighted, unhedged).
- Using Commitments of Traders Reports to Time Asset Allocations COT-based hedging pressure timing outperformed trend-following (11% vs 6.7% alpha relative to S&P 500; 2000-2006 test period; weekly rebalancing across 6 commodities/SPY/T-bills; equal-weighted portfolio).
- Any Tools to Implement Value-Momentum Asset Class Allocation? The post discusses combining asset class value rankings (risk-adjusted yield measures with structural adjustments) and momentum rankings across 12 asset classes, but notes no implementation tools currently exist.
- Optimal Asset Class Allocations The paper argues MPT optimization across ten asset classes boosts Sharpe ratio from 0.35 to 0.40, with real estate, commodities and high yield bonds providing most diversification value (theoretical; subjective…
- Asset Allocation Driven by Four Economic Phases Dynamic asset allocation using four-phase economic cycle outperformed static benchmark (0.4% annually constant-risk; 0.9% annually return-enhancing; 1948-2007; 8 asset classes, 4 indicators).
- The Mutual Fund Research Newsletter Quarterly Asset Class Allocations Mutual Fund Research Newsletter quarterly asset allocations did not outperform a constant 60-30-10 allocation (0.16% vs 0.20% average quarterly return using S&P 500; 2000-2008; 36 quarterly recommendations).
- International Diversification with Small Stocks: A Two-fold Size Effect International small-cap funds offer superior diversification benefits, with optimal portfolios combining US market index and non-US small-cap funds achieving Sharpe ratios significantly greater than US-only portfolios (1980-1999; 10 countries).
- Global Diversification: By Country or Industry? Industry effects increasingly exceeded country effects as diversification sources by 2001, especially in developed markets (1992-2001; capitalization-weighted DJGI returns; 4,801 companies, 51 industries, 34 countries).
- Diversification for “Peak” Performance Portfolio underperformance probability drops dramatically with size: 40.2% of 10-stock vs 0.4% of 200-stock portfolios underperformed 20-year Treasuries (1985-2004; 1,000 US stocks sample).
- Diversify, Diversify, Diversify(?) ...some risk-tolerant investors successfully exploit significant informational advantages by concentrating their portfolios in a few stocks that they know well.