'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 investmentâ€™s overall performance.'

Using this definition on our asset we see for example:- Looking at the total return of 8.1% in the last 5 years of VanEck Vectors Uranium & Nuclear Energy ETF, we see it is relatively lower, thus worse in comparison to the benchmark SPY (66.2%)
- Looking at total return in of -3.9% in the period of the last 3 years, we see it is relatively lower, thus worse in comparison to SPY (36.8%).

'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.'

Applying this definition to our asset in some examples:- Compared with the benchmark SPY (10.7%) in the period of the last 5 years, the annual return (CAGR) of 1.7% of VanEck Vectors Uranium & Nuclear Energy ETF is lower, thus worse.
- Looking at annual return (CAGR) in of -1.4% in the period of the last 3 years, we see it is relatively lower, thus worse in comparison to SPY (11%).

'Volatility is a statistical measure of the dispersion of returns for a given security or market index. Volatility can either be measured by using the standard deviation or variance between returns from that same security or market index. Commonly, the higher the volatility, the riskier the security. In the securities markets, volatility is often associated with big swings in either direction. For example, when the stock market rises and falls more than one percent over a sustained period of time, it is called a 'volatile' market.'

Which means for our asset as example:- Looking at the volatility of 18.2% in the last 5 years of VanEck Vectors Uranium & Nuclear Energy ETF, we see it is relatively smaller, thus better in comparison to the benchmark SPY (19%)
- Compared with SPY (22%) in the period of the last 3 years, the 30 days standard deviation of 20.2% is lower, thus better.

'Risk measures typically quantify the downside risk, whereas the standard deviation (an example of a deviation risk measure) measures both the upside and downside risk. Specifically, downside risk in our definition is the semi-deviation, that is the standard deviation of all negative returns.'

Which means for our asset as example:- Looking at the downside volatility of 13.5% in the last 5 years of VanEck Vectors Uranium & Nuclear Energy ETF, we see it is relatively lower, thus better in comparison to the benchmark SPY (13.9%)
- Compared with SPY (16.1%) in the period of the last 3 years, the downside risk of 15.2% is lower, thus better.

'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.'

Using this definition on our asset we see for example:- Compared with the benchmark SPY (0.43) in the period of the last 5 years, the risk / return profile (Sharpe) of -0.04 of VanEck Vectors Uranium & Nuclear Energy ETF is lower, thus worse.
- During the last 3 years, the risk / return profile (Sharpe) is -0.19, which is lower, thus worse than the value of 0.39 from the benchmark.

'The Sortino ratio, a variation of the Sharpe ratio only factors in the downside, or negative volatility, rather than the total volatility used in calculating the Sharpe ratio. The theory behind the Sortino variation is that upside volatility is a plus for the investment, and it, therefore, should not be included in the risk calculation. Therefore, the Sortino ratio takes upside volatility out of the equation and uses only the downside standard deviation in its calculation instead of the total standard deviation that is used in calculating the Sharpe ratio.'

Applying this definition to our asset in some examples:- Compared with the benchmark SPY (0.59) in the period of the last 5 years, the ratio of annual return and downside deviation of -0.06 of VanEck Vectors Uranium & Nuclear Energy ETF is lower, thus worse.
- Looking at downside risk / excess return profile in of -0.26 in the period of the last 3 years, we see it is relatively lower, thus worse in comparison to SPY (0.53).

'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 (5.9 ) in the period of the last 5 years, the Downside risk index of 7.05 of VanEck Vectors Uranium & Nuclear Energy ETF is higher, thus worse.
- During the last 3 years, the Ulcer Ratio is 8.03 , which is greater, thus worse than the value of 6.98 from the benchmark.

'Maximum drawdown is defined as the peak-to-trough decline of an investment during a specific period. It is usually quoted as a percentage of the peak value. The maximum drawdown can be calculated based on absolute returns, in order to identify strategies that suffer less during market downturns, such as low-volatility strategies. However, the maximum drawdown can also be calculated based on returns relative to a benchmark index, for identifying strategies that show steady outperformance over time.'

Applying this definition to our asset in some examples:- Compared with the benchmark SPY (-33.7 days) in the period of the last 5 years, the maximum reduction from previous high of -34.3 days of VanEck Vectors Uranium & Nuclear Energy ETF is lower, thus worse.
- During the last 3 years, the maximum reduction from previous high is -34.3 days, which is lower, thus worse than the value of -33.7 days from the benchmark.

'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) in days.'

Applying this definition to our asset in some examples:- Compared with the benchmark SPY (187 days) in the period of the last 5 years, the maximum days under water of 232 days of VanEck Vectors Uranium & Nuclear Energy ETF is greater, thus worse.
- Compared with SPY (139 days) in the period of the last 3 years, the maximum days under water of 232 days is higher, thus worse.

'The Drawdown Duration is the length of any peak to peak period, or the time between new equity highs. 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.'

Using this definition on our asset we see for example:- The average days under water over 5 years of VanEck Vectors Uranium & Nuclear Energy ETF is 67 days, which is larger, thus worse compared to the benchmark SPY (44 days) in the same period.
- Compared with SPY (41 days) in the period of the last 3 years, the average days under water of 67 days is higher, thus worse.

Historical returns have been extended using synthetic data.
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- Note that yearly returns do not equal the sum of monthly returns due to compounding.
- Performance results of VanEck Vectors Uranium & Nuclear Energy ETF 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.