'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.'

Applying this definition to our asset in some examples:- Compared with the benchmark SPY (62.7%) in the period of the last 5 years, the total return of 48.3% of iShares MSCI Global Select Metals & Mining Producers Fund is lower, thus worse.
- Compared with SPY (34.7%) in the period of the last 3 years, the total return, or performance of 65.7% is higher, thus better.

'The compound annual growth rate (CAGR) is a useful measure of growth over multiple time periods. It can be thought of as the growth rate that gets you from the initial investment value to the ending investment value if you assume that the investment has been compounding over the time period.'

Using this definition on our asset we see for example:- The annual return (CAGR) over 5 years of iShares MSCI Global Select Metals & Mining Producers Fund is 8.2%, which is lower, thus worse compared to the benchmark SPY (10.2%) in the same period.
- Looking at annual return (CAGR) in of 18.4% in the period of the last 3 years, we see it is relatively larger, thus better in comparison to SPY (10.5%).

'In finance, volatility (symbol σ) is the degree of variation of a trading price series over time as measured by the standard deviation of logarithmic returns. Historic volatility measures a time series of past market prices. Implied volatility looks forward in time, being derived from the market price of a market-traded derivative (in particular, an option). Commonly, the higher the volatility, the riskier the security.'

Applying this definition to our asset in some examples:- Looking at the volatility of 30.6% in the last 5 years of iShares MSCI Global Select Metals & Mining Producers Fund, we see it is relatively larger, thus worse in comparison to the benchmark SPY (20.9%)
- Compared with SPY (24.1%) in the period of the last 3 years, the historical 30 days volatility of 35% is larger, thus worse.

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

Applying this definition to our asset in some examples:- The downside risk over 5 years of iShares MSCI Global Select Metals & Mining Producers Fund is 22.1%, which is larger, thus worse compared to the benchmark SPY (15.3%) in the same period.
- During the last 3 years, the downside deviation is 25.3%, which is higher, thus worse than the value of 17.6% from the benchmark.

'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 ratio of return and volatility (Sharpe) of 0.19 in the last 5 years of iShares MSCI Global Select Metals & Mining Producers Fund, we see it is relatively smaller, thus worse in comparison to the benchmark SPY (0.37)
- Looking at Sharpe Ratio in of 0.45 in the period of the last 3 years, we see it is relatively larger, thus better in comparison to SPY (0.33).

'The Sortino ratio improves upon the Sharpe ratio by isolating downside volatility from total volatility by dividing excess return by the downside deviation. The Sortino ratio is a variation of the Sharpe ratio that differentiates harmful volatility from total overall volatility by using the asset's standard deviation of negative asset returns, called downside deviation. The Sortino ratio takes the asset's return and subtracts the risk-free rate, and then divides that amount by the asset's downside deviation. The ratio was named after Frank A. Sortino.'

Using this definition on our asset we see for example:- The excess return divided by the downside deviation over 5 years of iShares MSCI Global Select Metals & Mining Producers Fund is 0.26, which is lower, thus worse compared to the benchmark SPY (0.51) in the same period.
- Compared with SPY (0.45) in the period of the last 3 years, the ratio of annual return and downside deviation of 0.63 is larger, thus better.

'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.'

Applying this definition to our asset in some examples:- The Ulcer Ratio over 5 years of iShares MSCI Global Select Metals & Mining Producers Fund is 18 , which is higher, thus worse compared to the benchmark SPY (7.71 ) in the same period.
- Compared with SPY (9.08 ) in the period of the last 3 years, the Downside risk index of 16 is greater, thus worse.

'A maximum drawdown is the maximum loss from a peak to a trough of a portfolio, before a new peak is attained. Maximum Drawdown is an indicator of downside risk over a specified time period. It can be used both as a stand-alone measure or as an input into other metrics such as 'Return over Maximum Drawdown' and the Calmar Ratio. Maximum Drawdown is expressed in percentage terms.'

Which means for our asset as example:- The maximum reduction from previous high over 5 years of iShares MSCI Global Select Metals & Mining Producers Fund is -52.7 days, which is lower, thus worse compared to the benchmark SPY (-33.7 days) in the same period.
- Compared with SPY (-33.7 days) in the period of the last 3 years, the maximum drop from peak to valley of -46.4 days is lower, thus worse.

'The Maximum 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. It is the length of time the account was in the Max Drawdown. A Max Drawdown measures a retrenchment from when an equity curve reaches a new high. It’s the maximum an account lost during that retrenchment. This method is applied because a valley can’t be measured until a new high occurs. Once the new high is reached, the percentage change from the old high to the bottom of the largest trough is recorded.'

Applying this definition to our asset in some examples:- Compared with the benchmark SPY (189 days) in the period of the last 5 years, the maximum time in days below previous high water mark of 726 days of iShares MSCI Global Select Metals & Mining Producers Fund is larger, thus worse.
- Compared with SPY (189 days) in the period of the last 3 years, the maximum days below previous high of 205 days is larger, thus worse.

'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 below previous high of 245 days in the last 5 years of iShares MSCI Global Select Metals & Mining Producers Fund, we see it is relatively larger, thus worse in comparison to the benchmark SPY (46 days)
- Compared with SPY (45 days) in the period of the last 3 years, the average days under water of 74 days is larger, 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 iShares MSCI Global Select Metals & Mining Producers Fund 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.