The iPath Series B S&P 500 VIX Mid-Term Futures ETNs (the "ETNs") are designed to provide exposure to the S&P 500 VIX Mid-Term Futures Index Total Return (the "Index"). The ETNs are riskier than ordinary unsecured debt securities and have no principal protection. The ETNs are unsecured debt obligations of the issuer, Barclays Bank PLC, and are not, either directly or indirectly, an obligation of or guaranteed by any third party. Any payment to be made on the ETNs, including any payment at maturity or upon redemption, depends on the ability of Barclays Bank PLC to satisfy its obligations as they come due. An investment in the ETNs involves significant risks, including possible loss of principal and may not be suitable for all investors.

The Index is designed to provide access to equity market volatility through CBOE Volatility Index (the "VIX Index") futures. The Index offers exposure to a daily rolling long position in the fourth, fifth, sixth and seventh month VIX futures contracts and reflects market participants’ views of the future direction of the VIX index at the time of expiration of the VIX futures contracts comprising the Index. Owning the ETNs is not the same as owning interests in the index components included in the Index or a security directly linked to the performance of the Index.

'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:- Compared with the benchmark SPY (78.4%) in the period of the last 5 years, the total return, or increase in value of 19.2% of iPath Series B S&P 500 VIX Mid-Term Futures ETN is smaller, thus worse.
- During the last 3 years, the total return, or increase in value is 63.3%, which is larger, thus better than the value of 44.1% from the benchmark.

'Compound annual growth rate (CAGR) is a business and investing specific term for the geometric progression ratio that provides a constant rate of return over the time period. CAGR is not an accounting term, but it is often used to describe some element of the business, for example revenue, units delivered, registered users, etc. CAGR dampens the effect of volatility of periodic returns that can render arithmetic means irrelevant. It is particularly useful to compare growth rates from various data sets of common domain such as revenue growth of companies in the same industry.'

Using this definition on our asset we see for example:- Compared with the benchmark SPY (12.3%) in the period of the last 5 years, the compounded annual growth rate (CAGR) of 3.6% of iPath Series B S&P 500 VIX Mid-Term Futures ETN is smaller, thus worse.
- During the last 3 years, the annual return (CAGR) is 17.7%, which is larger, thus better than the value of 12.9% from the benchmark.

'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:- Compared with the benchmark SPY (19.9%) in the period of the last 5 years, the 30 days standard deviation of 36.1% of iPath Series B S&P 500 VIX Mid-Term Futures ETN is greater, thus worse.
- Looking at volatility in of 40% in the period of the last 3 years, we see it is relatively greater, thus worse in comparison to SPY (23.1%).

'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:- The downside risk over 5 years of iPath Series B S&P 500 VIX Mid-Term Futures ETN is 21.1%, which is larger, thus worse compared to the benchmark SPY (14.6%) in the same period.
- Compared with SPY (16.9%) in the period of the last 3 years, the downside volatility of 22.8% is larger, thus worse.

'The Sharpe ratio is the measure of risk-adjusted return of a financial portfolio. Sharpe ratio is a measure of excess portfolio return over the risk-free rate relative to its standard deviation. Normally, the 90-day Treasury bill rate is taken as the proxy for risk-free rate. A portfolio with a higher Sharpe ratio is considered superior relative to its peers. The measure was named after William F Sharpe, a Nobel laureate and professor of finance, emeritus at Stanford University.'

Which means for our asset as example:- The risk / return profile (Sharpe) over 5 years of iPath Series B S&P 500 VIX Mid-Term Futures ETN is 0.03, which is lower, thus worse compared to the benchmark SPY (0.49) in the same period.
- Compared with SPY (0.45) in the period of the last 3 years, the risk / return profile (Sharpe) of 0.38 is lower, thus worse.

'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.'

Using this definition on our asset we see for example:- Looking at the ratio of annual return and downside deviation of 0.05 in the last 5 years of iPath Series B S&P 500 VIX Mid-Term Futures ETN, we see it is relatively smaller, thus worse in comparison to the benchmark SPY (0.67)
- Compared with SPY (0.62) in the period of the last 3 years, the downside risk / excess return profile of 0.67 is higher, thus better.

'The Ulcer Index is a technical indicator that measures downside risk, in terms of both the depth and duration of price declines. The index increases in value as the price moves farther away from a recent high and falls as the price rises to new highs. The indicator is usually calculated over a 14-day period, with the Ulcer Index showing the percentage drawdown a trader can expect from the high over that period. The greater the value of the Ulcer Index, the longer it takes for a stock to get back to the former high.'

Applying this definition to our asset in some examples:- Looking at the Downside risk index of 24 in the last 5 years of iPath Series B S&P 500 VIX Mid-Term Futures ETN, we see it is relatively higher, thus worse in comparison to the benchmark SPY (6.16 )
- Looking at Ulcer Ratio in of 22 in the period of the last 3 years, we see it is relatively larger, thus worse in comparison to SPY (6.87 ).

'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:- Looking at the maximum DrawDown of -35.9 days in the last 5 years of iPath Series B S&P 500 VIX Mid-Term Futures ETN, we see it is relatively smaller, thus worse in comparison to the benchmark SPY (-33.7 days)
- Compared with SPY (-33.7 days) in the period of the last 3 years, the maximum reduction from previous high of -35.9 days is smaller, thus worse.

'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'

Using this definition on our asset we see for example:- The maximum time in days below previous high water mark over 5 years of iPath Series B S&P 500 VIX Mid-Term Futures ETN is 703 days, which is greater, thus worse compared to the benchmark SPY (139 days) in the same period.
- Compared with SPY (119 days) in the period of the last 3 years, the maximum time in days below previous high water mark of 549 days is greater, 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.'

Which means for our asset as example:- Compared with the benchmark SPY (35 days) in the period of the last 5 years, the average days under water of 318 days of iPath Series B S&P 500 VIX Mid-Term Futures ETN is higher, thus worse.
- Compared with SPY (27 days) in the period of the last 3 years, the average days below previous high of 213 days is greater, 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 iPath Series B S&P 500 VIX Mid-Term Futures ETN 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.