The “All Weather” and “All Seasons” Portfolios

Start by separating two things the internet has fused into one. All Weather is the institutional strategy Ray Dalio built at Bridgewater Associates — a risk parity fund that uses leverage to run its low-volatility sleeves at equity-scale risk. All Seasons is the unlevered five-fund approximation Dalio described for retail investors in Tony Robbins’ Money: Master the Game (2014). Almost every “All Weather portfolio” you will find quoted online, including the allocation below, is All Seasons. The distinction is not pedantry, and section “Risk Parity” explains why: strip the leverage out of a risk-parity portfolio and you have not built a safer version of it, you have built a bond fund with a 30% equity kicker.

The economic logic is sound and worth internalizing regardless of how you implement it. Every asset is a bet on two variables — growth and inflation — each of which can surprise up or down, giving four “seasons.” Equities win when growth surprises up. Long nominal bonds win when growth surprises down and inflation falls. Commodities and gold win when inflation surprises up. Build so that something in the portfolio is always the right answer, and you stop needing to forecast which season is coming. The allocation that follows is one implementation of that idea:

40% Long-term Bonds

Represented by ETFs iShares 20+ Year Treasury Bond ETF (TLT), Vanguard Long-Term Treasury ETF (VGLT). Carries the deflation and growth-shock leg.

30% Stocks

Represented by ETFs like SPDR S&P 500 ETF Trust (SPY), Vanguard S&P 500 ETF (VOO), Vanguard Total Stock Market ETF (VTI). Carries the growth leg.

15% Intermediate-term Bonds

Represented by ETFs iShares 3-7 Year Treasury Bond ETF (IEI), Schwab Intermediate-Term U.S. Treasury ETF (SCHR). Dampens the duration of the long-bond sleeve.

7.5% Commodities

Represented by ETFs Invesco DB Commodity Index Tracking Fund (DBC), abrdn Bloomberg All Commodity Strategy K-1 Free ETF (BCI). Carries the inflation leg. Both hold futures, not physical goods, so their long-run return depends on the shape of the futures curve as much as on spot prices — see section “Futures Roll and Roll Yield” before you assume this sleeve tracks inflation.

7.5% Gold

Represented by ETFs SPDR Gold Shares (GLD), SPDR Gold MiniShares Trust (GLDM). Hedges currency debasement and real-rate collapse.

What 2022 revealed. The portfolio is named for its claim to handle any weather, so judge it on the year the weather turned. In 2022 — an inflation shock paired with the fastest rate-hiking cycle in forty years, precisely the scenario the design exists to survive — All Seasons fell roughly 20%, worse than a plain 60/40. The reason is arithmetic, not bad luck. The portfolio is 55% bonds, and 40 of those points sit at the long end, so it is a concentrated bet on long-duration real rates wearing a diversification costume. When rates repriced, the commodity and gold sleeves — 15% of capital between them — were far too small to offset a 55% duration position, and the equity leg fell at the same time.

This is also why the flattering backtests stop where they do. A 1970–2020 window brackets almost exactly the greatest bond bull market in recorded history: yields peaked in 1981 and fell for four decades. Any portfolio majority-weighted to duration looks brilliant against that tape. The 7–8% annualized with lower volatility than 60/40 you will see quoted is real, and it is a measurement of that regime rather than a property of the design.

If you want to run it, run it correctly. Three adjustments matter more than the specific fund tickers:

Match duration to the risk you are actually taking

Holding 40% in 20-year Treasuries is a macro position, not a ballast position. Either shorten it or accept that you own a rates fund.

Put it in tax-deferred space

Every sleeve here is tax-hostile. The 55% bond allocation throws ordinary income, DBC issues a K-1 and marks to market annually under § 1256, and GLD is taxed at the 28% collectibles rate (section “Tax Efficiency of Assets” and section “Assigning Assets into Tax Buckets”). Run in a taxable account, the after-tax result bears little resemblance to any backtest.

Do not substitute your way out of the inflation leg

A common suggestion is replacing commodities with utilities and real estate investment trusts (REITs). Both are rate-sensitive equity, which is what you already own too much of — the substitution improves the backtest by loading further onto the same factor that carried the sample period.

The evidence on risk parity itself is more modest than its marketing. Research⁹⁰ finds it often achieves a higher Sharpe ratio than minimum variance or mean-variance optimization, but it does not consistently beat equal-weighted or 60/40 portfolios, and results are highly sensitive to which assets you decide to include — with no principled guidance on that choice, and no reliable gain from adding more. Including low-volatility fixed income improves back-tested outcomes for the same reason it improved 1970–2020: high realized Sharpe ratios in the sample.