Lazy Portfolio by David Swensen
The Lazy Portfolio by David Swensen is a simplified, index-fund implementation of the investment principles described by David Swensen in his book for individual investors, Unconventional Success: A Fundamental Approach to Personal Investment, published in 2005. Swensen, who served as the Chief Investment Officer of Yale University's endowment for over three decades and produced one of the most celebrated institutional investment track records in history, argued that most individuals are poorly served by actively managed mutual funds and should instead build portfolios from low-cost index funds across six asset classes.
Investment Philosophy
Swensen's recommended individual investor portfolio departs significantly from the traditional 60/40 stock-bond model by incorporating real estate investment trusts and inflation-protected bonds alongside domestic equities, international stocks, and emerging markets. He argued that broad diversification across uncorrelated asset classes — rather than manager selection — is the primary driver of long-run investment outcomes for individuals. He was a vocal critic of the mutual fund industry's fee structures and conflicts of interest.
Who It's For
This portfolio is appropriate for long-term investors who want a diversified, low-cost passive approach with more granularity than a three-fund portfolio. It suits investors with a medium-to-long time horizon and a moderate-to-high risk tolerance who are comfortable managing six distinct positions.
Pros
- Designed by one of the most successful institutional investors of his generation with deep expertise in portfolio construction
- Broader diversification than a simple equity-bond portfolio, including REITs and inflation-protected bonds
- Low-cost index fund implementation keeps fees minimal
Cons
- Six-component structure requires more attention to rebalancing than a two- or three-fund portfolio
- Heavy US equity weighting relative to global market capitalisation reflects a home-country bias
- Some critics argue the allocation is overly complex for the marginal diversification benefit it provides
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Target Allocation
Performance Snapshot
Rolling Returns
| Period | Low | Average | High |
|---|---|---|---|
| 1 Year | -35.2% | +9.1% | +47.3% |
| 3 Year | -9.6% | +8.2% | +23.6% |
| 5 Year | -1.4% | +7.9% | +18.3% |
| 10 Year | +3.2% | +7.9% | +11.9% |
Growth of $10,000
Historical Drawdown
Percentage decline from the portfolio's peak value at each point in time.
Rolling Returns
Annualised return for each rolling period ending on that date.
Annualised return for each 1Y period ending on that date.