Ivy Portfolio (Mebane Faber)

The Ivy Portfolio takes its name from investment manager Mebane Faber's book of the same title, which studied how large university endowments — Yale and Harvard in particular — diversify across asset classes. The simplified, individual-investor version splits assets equally across five sleeves at 20% each: US stocks, international stocks, bonds, REITs, and commodities.

Faber's observation was that elite endowments consistently outperformed typical individual and institutional portfolios over long periods, and a large part of the reason was structural: endowments held far more diversified portfolios, with meaningful allocations to real assets like real estate and commodities that most retail investors ignored entirely in favor of a plain stock/bond mix. The Ivy Portfolio distills that insight into an equal-weight allocation that any individual investor can replicate with publicly traded ETFs, without needing access to the private equity, hedge funds, or venture capital that endowments also use.

US stocks (20%) and international stocks (20%) provide globally diversified equity growth. Bonds (20%) add stability and a buffer during equity downturns. REITs (20%) contribute real estate exposure, a return driver largely uncorrelated with either stocks or bonds over full cycles. Commodities (20%) round out the mix as the portfolio's primary inflation hedge, tending to perform best exactly when inflation surprises hurt both stocks and bonds. The equal-weighting is intentional simplicity: no single asset class is allowed to dominate the portfolio's outcome.

This strategy suits investors who want endowment-style diversification into real assets — real estate and commodities — without the complexity or illiquidity of private markets, and who are comfortable with a moderate, balanced risk profile (roughly 40% growth equities, 20% real estate, 20% commodities, 20% bonds). It works well for investors who specifically want measurable inflation protection built into a core allocation rather than added as an afterthought.

Its strength is genuine diversification across four distinct return drivers — equities, bonds, real estate, and commodities — which has historically reduced portfolio volatility relative to a stock/bond-only mix. Its trade-off is that a 20% allocation to commodities is a significant drag during long stretches when commodity prices are flat or falling, as they were for much of the 2010s, and the portfolio's equal-weight design means it never overweights whichever asset class is currently working best.

The Ivy Portfolio's equal-weight design meant its commodity and REIT sleeves shaped its path as much as stocks: commodities surged into mid-2008 then crashed in the second half, and REITs fell sharply in the financial crisis, so 2008 was a difficult year despite the diversification. Its standout feature appeared in inflationary 2022, when the 20% commodity allocation rose strongly and offset weakness in stocks and bonds — exactly the scenario it was built for. The long commodity bear market of the 2010s was its biggest drag.

Faber's original work paired this allocation with a trend-following timing overlay (moving-average rules) to sidestep major drawdowns; the buy-and-hold version shown here omits that layer. Investors often implement commodities with a broad fund like DBC and sometimes trim the sleeve, given its long flat stretches. The real-asset tilt makes it a natural inflation-aware alternative to a plain 60/40.