Description

David Swensen is manager of Yale University's endowment fund. He has addressed how investors should set up and manage their investments in his book, Unconventional Success: A Fundamental Approach to Personal Investment.

The Swensen portfolio consists of six core asset class allocations:

US equity: 30%

Foreign developed equity: 15%

Emerging market equity: 5%

US REITS: 20%

US Treasury bonds: 15%

US TIPS: 15%

Statistics (YTD)

What do these metrics mean? [Read More] [Hide]

TotalReturn:

'Total return is the amount of value an investor earns from a security over a specific period, typically one year, when all distributions are reinvested. Total return is expressed as a percentage of the amount invested. For example, a total return of 20% means the security increased by 20% of its original value due to a price increase, distribution of dividends (if a stock), coupons (if a bond) or capital gains (if a fund). Total return is a strong measure of an investment’s overall performance.'

Using this definition on our asset we see for example:
  • The total return over 5 years of Yale U's Unconventional Portfolio is 26.4%, which is lower, thus worse compared to the benchmark SPY (61.9%) in the same period.
  • During the last 3 years, the total return, or increase in value is 33%, which is lower, thus worse than the value of 79.4% from the benchmark.

CAGR:

'The compound annual growth rate isn't a true return rate, but rather a representational figure. It is essentially a number that describes the rate at which an investment would have grown if it had grown the same rate every year and the profits were reinvested at the end of each year. In reality, this sort of performance is unlikely. However, CAGR can be used to smooth returns so that they may be more easily understood when compared to alternative investments.'

Using this definition on our asset we see for example:
  • Compared with the benchmark SPY (10.1%) in the period of the last 5 years, the annual performance (CAGR) of 4.8% of Yale U's Unconventional Portfolio is lower, thus worse.
  • During the last 3 years, the annual performance (CAGR) is 10%, which is smaller, thus worse than the value of 21.5% from the benchmark.

Volatility:

'Volatility is a rate at which the price of a security increases or decreases for a given set of returns. Volatility is measured by calculating the standard deviation of the annualized returns over a given period of time. It shows the range to which the price of a security may increase or decrease. Volatility measures the risk of a security. It is used in option pricing formula to gauge the fluctuations in the returns of the underlying assets. Volatility indicates the pricing behavior of the security and helps estimate the fluctuations that may happen in a short period of time.'

Using this definition on our asset we see for example:
  • The volatility over 5 years of Yale U's Unconventional Portfolio is 13.6%, which is lower, thus better compared to the benchmark SPY (21.5%) in the same period.
  • Compared with SPY (21.2%) in the period of the last 3 years, the historical 30 days volatility of 14% is lower, thus better.

DownVol:

'The downside volatility is similar to the volatility, or standard deviation, but only takes losing/negative periods into account.'

Using this definition on our asset we see for example:
  • Looking at the downside risk of 10.1% in the last 5 years of Yale U's Unconventional Portfolio, we see it is relatively lower, thus better in comparison to the benchmark SPY (15.5%)
  • Looking at downside volatility in of 9.4% in the period of the last 3 years, we see it is relatively lower, thus better in comparison to SPY (14.1%).

Sharpe:

'The Sharpe ratio (also known as the Sharpe index, the Sharpe measure, and the reward-to-variability ratio) is a way to examine the performance of an investment by adjusting for its risk. The ratio measures the excess return (or risk premium) per unit of deviation in an investment asset or a trading strategy, typically referred to as risk, named after William F. Sharpe.'

Applying this definition to our asset in some examples:
  • Looking at the risk / return profile (Sharpe) of 0.17 in the last 5 years of Yale U's Unconventional Portfolio, we see it is relatively smaller, thus worse in comparison to the benchmark SPY (0.36)
  • Compared with SPY (0.9) in the period of the last 3 years, the risk / return profile (Sharpe) of 0.53 is smaller, thus worse.

Sortino:

'The Sortino ratio measures the risk-adjusted return of an investment asset, portfolio, or strategy. It is a modification of the Sharpe ratio but penalizes only those returns falling below a user-specified target or required rate of return, while the Sharpe ratio penalizes both upside and downside volatility equally. Though both ratios measure an investment's risk-adjusted return, they do so in significantly different ways that will frequently lead to differing conclusions as to the true nature of the investment's return-generating efficiency. The Sortino ratio is used as a way to compare the risk-adjusted performance of programs with differing risk and return profiles. In general, risk-adjusted returns seek to normalize the risk across programs and then see which has the higher return unit per risk.'

Using this definition on our asset we see for example:
  • Looking at the excess return divided by the downside deviation of 0.23 in the last 5 years of Yale U's Unconventional Portfolio, we see it is relatively smaller, thus worse in comparison to the benchmark SPY (0.49)
  • During the last 3 years, the excess return divided by the downside deviation is 0.8, which is lower, thus worse than the value of 1.35 from the benchmark.

Ulcer:

'The ulcer index is a stock market risk measure or technical analysis indicator devised by Peter Martin in 1987, and published by him and Byron McCann in their 1989 book The Investors Guide to Fidelity Funds. It's designed as a measure of volatility, but only volatility in the downward direction, i.e. the amount of drawdown or retracement occurring over a period. Other volatility measures like standard deviation treat up and down movement equally, but a trader doesn't mind upward movement, it's the downside that causes stress and stomach ulcers that the index's name suggests.'

Using this definition on our asset we see for example:
  • Compared with the benchmark SPY (9.15 ) in the period of the last 5 years, the Downside risk index of 8.74 of Yale U's Unconventional Portfolio is smaller, thus better.
  • Looking at Downside risk index in of 10 in the period of the last 3 years, we see it is relatively larger, thus worse in comparison to SPY (9.78 ).

MaxDD:

'Maximum drawdown measures the loss in any losing period during a fund’s investment record. It is defined as the percent retrenchment from a fund’s peak value to the fund’s valley value. The drawdown is in effect from the time the fund’s retrenchment begins until a new fund high is reached. The maximum drawdown encompasses both the period from the fund’s peak to the fund’s valley (length), and the time from the fund’s valley to a new fund high (recovery). It measures the largest percentage drawdown that has occurred in any fund’s data record.'

Which means for our asset as example:
  • Looking at the maximum reduction from previous high of -26.2 days in the last 5 years of Yale U's Unconventional Portfolio, we see it is relatively higher, thus better in comparison to the benchmark SPY (-33.7 days)
  • Looking at maximum drop from peak to valley in of -26.2 days in the period of the last 3 years, we see it is relatively smaller, thus worse in comparison to SPY (-24.5 days).

MaxDuration:

'The Drawdown Duration is the length of any peak to peak period, or the time between new equity highs. The Max Drawdown Duration is the worst (the maximum/longest) amount of time an investment has seen between peaks (equity highs). Many assume Max DD Duration is the length of time between new highs during which the Max DD (magnitude) occurred. But that isn’t always the case. The Max DD duration is the longest time between peaks, period. So it could be the time when the program also had its biggest peak to valley loss (and usually is, because the program needs a long time to recover from the largest loss), but it doesn’t have to be'

Which means for our asset as example:
  • Looking at the maximum days under water of 307 days in the last 5 years of Yale U's Unconventional Portfolio, we see it is relatively larger, thus worse in comparison to the benchmark SPY (305 days)
  • Looking at maximum days under water in of 307 days in the period of the last 3 years, we see it is relatively greater, thus worse in comparison to SPY (305 days).

AveDuration:

'The Average Drawdown Duration is an extension of the Maximum Drawdown. However, this metric does not explain the drawdown in dollars or percentages, rather in days, weeks, or months. The Avg Drawdown Duration is the average amount of time an investment has seen between peaks (equity highs), or in other terms the average of time under water of all drawdowns. So in contrast to the Maximum duration it does not measure only one drawdown event but calculates the average of all.'

Applying this definition to our asset in some examples:
  • Looking at the average days under water of 65 days in the last 5 years of Yale U's Unconventional Portfolio, we see it is relatively larger, thus worse in comparison to the benchmark SPY (65 days)
  • Compared with SPY (80 days) in the period of the last 3 years, the average days under water of 80 days is higher, thus worse.

Performance (YTD)

Historical returns have been extended using synthetic data.

Allocations ()

Allocations

Returns (%)

  • Note that yearly returns do not equal the sum of monthly returns due to compounding.
  • Performance results of Yale U's Unconventional Portfolio are hypothetical, do not account for slippage, fees or taxes, and are based on backtesting, which has many inherent limitations, some of which are described in our Terms of Use.