The All Weather Portfolio was created by Ray Dalio, the founder of Bridgewater Associates, one of the world’s largest hedge funds. Dalio’s goal was to design a portfolio that could perform well under various economic conditions, minimizing risk and maximizing returns regardless of market volatility. The philosophy behind the All Weather Portfolio is rooted in the concept of risk parity, which aims to balance risk across different asset classes. It is about having each asset contributing in the same way to the portfolio overall volatility.
Benefits:
By spreading investments across multiple asset classes, the portfolio reduces the impact of poor performance in any single asset class.
The portfolio is designed to withstand different economic environments, such as inflation, deflation, and economic growth or decline.
Historical data and studies have shown that the All Weather Portfolio has historically provided a good balance of risk and return. When stocks are providing high returns in a high-growth environment, the All Weather Portfolio may underperform due to its 30% allocation to stocks. However, in less favorable growth environments, the All Weather Portfolio becomes more attractive. For example, a backtest from 1970 to 2020 shows that the portfolio had an average annual return of around 7–8% with lower volatility compared to a traditional 60/40 stock/bond portfolio.
The portfolio is relatively easy to construct and manage, making it accessible for individual investors.
The portfolio’s design is based on the understanding that different asset classes perform differently under various economic conditions. This is supported by modern portfolio theory (Markowitz, 1952), which emphasizes diversification to optimize returns for a given level of risk. The All Weather Portfolio typically includes a mix of various asset classes, represented by a combination of Exchange-traded Funds (ETFs):
Represented by ETFs iShares 20+ Year Treasury Bond ETF (TLT), Vanguard Long-Term Treasury ETF (VGLT). Offers stability and income. Long-term bonds perform well during periods of deflation and economic downturns.
Represented by ETFs like SPDR S&P 500 ETF Trust (SPY), Vanguard S&P 500 ETF (VOO), Vanguard Total Stock Market ETF (VTI). Provides growth potential. Stocks tend to perform well during periods of economic growth and moderate inflation.
Represented by ETFs iShares 3-7 Year Treasury Bond ETF (IEI), Schwab Intermediate-Term U.S. Treasury ETF (SCHR). Adds a layer of stability and income, balancing the portfolio further.
Represented by ETFs Invesco DB Commodity Index Tracking Fund (DBC), abrdn Bloomberg All Commodity Strategy K-1 Free ETF (BCI), Fidelity MSCI Utilities Index ETF (FUTY). Acts as a hedge against inflation. Commodities generally perform well during periods of high inflation.
Represented by ETFs SPDR Gold Shares (GLD), SPDR Gold MiniShares Trust (GLDM). Serves as a store of value and hedge against currency devaluation and inflation.
Research on Ray Dalio’s All Weather Portfolio suggests that replacing commodities with utilities and real estate investment trusts (REITs) could be beneficial. In addition, exploring the effects of leverage may offer further insights. However, the practical implications of these changes are mixed.
The All Weather Portfolio aims to provide stable returns across various economic conditions by diversifying across multiple asset classes and focusing on risk parity to minimize volatility. Research77 indicates that risk parity often achieves a higher Sharpe ratio than strategies like minimum variance or mean-variance optimization. However, it does not consistently outperform simple equal-weighted or 60/40 equity/bond portfolios. Risk parity offers balanced risk allocation and less volatile performance over time but is sensitive to asset inclusion decisions. There is no clear guidance on the number or types of asset classes to include, and more asset classes do not necessarily improve results. Including low-volatility fixed-income assets, which historically have high Sharpe ratios, can improve back-tested outcomes.