Last Updated: 11 Comments – 3 min. read
Financially reviewed by Patrick Flood, CFA.
The David Swensen Portfolio, as the name implies, is based on the late David Swensen's management of the Yale endowment fund. Here we’ll take a look at its components, performance, and the best ETF’s to use in its construction.
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What Is the David Swensen Portfolio?
The David Swensen Portfolio – also called the David Swensen Lazy Portfolio – comes from portfolio manager David Swensen, who was the CIO at Yale University from 1985 until his death in May, 2021. You can get his book Unconventional Success: A Fundamental Approach to Personal Investment on Amazon here, which details how retail investors can use the portfolio outlined below to mirror the Yale Model, though note that the specific portfolio Swensen used for the Yale endowment is not exactly the same as the Swensen portfolio below because he was able to use somewhat “exotic” products only available to institutional investors like private equity, hedge funds, venture capital, etc.
The David Swensen Portfolio asset allocation looks like this:
- 30% Total Stock Market
- 15% International Stock Market
- 5% Emerging Markets
- 15% Intermediate Treasury Bonds
- 15% TIPS
- 20% REITs
Similar to the Ivy Portfolio, we see a heavy 20% allocation to REITs. Unlike that one though, the Swensen Portfolio doesn't include commodities, and I like that. I also like that this portfolio does not use gold.
Swensen had a particular affinity for TIPS, or Treasury Inflation Protected Securities, a relatively new type of treasury bond indexed to the CPI, the common measure of inflation. This is interesting, as most lazy portfolios ignore TIPS altogether or give them a smaller allocation. Rick Ferri is fond of TIPS as well, suggesting that retirees should probably have them as half of their fixed income allocation.
In this sense, the Swensen Portfolio is not unlike the famous All Weather Portfolio, attempting to sail through different economic environments unscathed, though Dalio uses gold and broad commodities as an attempt at inflation protection instead of TIPS. In fairness, TIPS weren't even around yet when Dalio first proposed the All Weather Portfolio's components.
I also agree with Swensen's use of treasury bonds and exclusion of corporate bonds. He maintained, like I do, that treasury bonds offer superior downside protection alongside stocks, and corporate bonds don't sufficiently compensate the investor for their extra risk. That said, 15% in intermediate treasuries is not really going to provide much protection. I think it would probably be more sensible to make them long bonds instead of intermediate.
Furthermore, TIPS and intermediate bonds are likely unsuitable, unnecessary, and almost certainly suboptimal for the young investor with a long time horizon and high tolerance for risk. In my opinion, this portfolio is better suited for retirees and those approaching retirement, but at that point I'd also want to increase the bonds.
The Swensen portfolio relies heavily on REITs, having them comprise 20% of the total portfolio. This seems a bit odd to me, as we now know REITs are not a distinct asset class, are not a reliable inflation hedge, and don't offer much of a diversification benefit. Moreover, their returns seem to be explained by exposure to the Size, Value, and Credit factor premia, thus they can be replicated with small cap value stocks and lower-credit bonds. I don't have a problem with 10% or so in REITs, but 20% seems like too much in my opinion when that valuable space could be given to stocks or bonds.
David Swensen Portfolio Performance
For the period 1997 through May, 2021, the David Swensen Portfolio and the S&P 500 have been pretty close from a pure returns perspective, with the former obviously having a higher risk-adjusted return (Sharpe) due to its lower volatility:
David Swensen Portfolio ETF Pie for M1 Finance
M1 Financeis a great choice of broker to implement the David Swensen Portfolio because it makes regular rebalancing seamless and easy, has zero transaction fees, and incorporates dynamic rebalancing for new deposits. I wrote a comprehensive review of M1 Finance here.
Utilizing mostly low-cost Vanguard funds, we can construct theDavid Swensen Portfolio piewith the following ETF’s:
- VTI – 30%
- VXUS – 15%
- VWO – 5%
- VGIT – 15%
- SCHP – 15%
- VNQ – 20%
You can add the David Swensen Portfolio pie to your portfolio on M1 Finance by clickingthis linkand then clicking “Add to Portfolio.”
Canadians can find the above ETFs on Questrade or Interactive Brokers. Investors outside North America can use eToro or possibly Interactive Brokers.
Are you nearing or in retirement? Use my link here to get a free holistic financial plan from fiduciary advisors at Retirable to manage your savings, spend smarter, and navigate key decisions.
Don't want to do all this investing stuff yourself or feel overwhelmed? Check out my flat-fee-only fiduciary friends over at Advisor.com.
Disclosures:I am long VWO in my own portfolio.
Interested in more Lazy Portfolios? See the full list here.
Disclaimer: While I love diving into investing-related data and playing around with backtests, this is not financial advice, investing advice, or tax advice. The information on this website is for informational, educational, and entertainment purposes only. Investment products discussed (ETFs, mutual funds, etc.) are for illustrative purposes only. It is not a recommendation to buy, sell, or otherwise transact in any of the products mentioned. I always attempt to ensure the accuracy of information presented but that accuracy cannot be guaranteed. Do your own due diligence. I mention M1 Finance a lot around here. M1 does not provide investment advice, and this is not an offer or solicitation of an offer, or advice to buy or sell any security, and you are encouraged to consult your personal investment, legal, and tax advisors. All examples above are hypothetical, do not reflect any specific investments, are for informational purposes only, and should not be considered an offer to buy or sell any products. All investing involves risk, including the risk of losing the money you invest. Past performance does not guarantee future results. Opinions are my own and do not represent those of other parties mentioned. Read my lengthier disclaimer here.
Are you nearing or in retirement? Use my link here to get a free holistic financial plan from fiduciary advisors at Retirable to manage your savings, spend smarter, and navigate key decisions.
Don't want to do all this investing stuff yourself or feel overwhelmed? Check out my flat-fee-only fiduciary friends over at Advisor.com.
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About John Williamson, APMA®
Analytical data nerd, investing enthusiast, fintech consultant, Boglehead, and Oxford comma advocate. I'm not a big fan of social media, but you can find me on LinkedIn and Reddit.
Reader Interactions
Comments
Jonathan saysFrom reading the book, swensen says to use 15% for developed market equities and 5% with developing market equities. VXUS holds the total foreign market equities and should be replaced with VEA which holds foreign developed market equities.
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- Raja says
VXUS should already have emerging market, why add VWO again?
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- Aakash says
What are your thoughts about mixing in other REITs into the REIT allocation from https://www.optimizedportfolio.com/best-reit-etfs/ and perhaps NURE since the allocation to REITs is larger?
Thanks.
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- John Williamson says
Swensen’s already includes 20% to REITs.
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- Ryota Muranaka says
Would you consider David Swensen portfolio as low-risk, medium, or high-risk?
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- John Williamson says
I think I’d say medium risk.
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- Lee says
Dear Sir: I looked at your recommended funds, and iShares’ TIPS fund has an expense ratio of 0.19 percent. I thought that was a bit high, so I looked at Vanguard’s comparable fund, VTIP, and its expense ratio is only 0.05 percent, almost one-quarter of iShares’ fund. Why did you selecte a higher-cost fund (iShares TIPS)? Is it so much of better quality than Vanguard, the least expensive, and how is it better?
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- John Williamson says
Hey Lee. VTIP is short-term TIPS. Its effective avg. maturity is less than half that of TIP. You can see the historical effects of that difference here.
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- Jerry says
I’m slightly puzzled by your question. The lazy Swensen portfolio on this page uses a Schwab TIPS fund (ticker SCHP) and not any iShares TIPS funds. SCHP’s expense ratio is 0.04%, just like VTIP’s. There are, however, two TIPS funds from iShares :
iShares 0-5 Year TIPS (ticker STIP, expense Ratio 0.03%), and
iShares TIPS (ticker TIP with expense Ratio 0.19%)As far as maturities, it looks to me that SCHP and TIP are comparable (avg. maturity/duration for both are around 7.4/6.87 years) while VTIP and STIP are around half that … so around 2.6/2.5
(as of May 2023)Reply
- Alfonzo says
M1 has the holdings listed incorrectly. As of 5/18/20 it shows only 15% in VTI (total Stock market)- not 30 %. Instead of showing 15% for Intermediate Bonds it has it at 30%.
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- John Williamson says
Alfonzo, sorry about that and thanks for letting me know! I must have accidentally switched those 2 ETF’s. It should be correct now!
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