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 investmentâ€™s overall performance.'

Using this definition on our asset we see for example:- Compared with the benchmark SPY (80.4%) in the period of the last 5 years, the total return of -25.5% of iPath Series B S&P 500 VIX Mid-Term Futures ETN is lower, thus worse.
- Compared with SPY (30.7%) in the period of the last 3 years, the total return, or increase in value of -50.4% is smaller, thus worse.

'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.'

Applying this definition to our asset in some examples:- Looking at the compounded annual growth rate (CAGR) of -5.7% in the last 5 years of iPath Series B S&P 500 VIX Mid-Term Futures ETN, we see it is relatively lower, thus worse in comparison to the benchmark SPY (12.6%)
- During the last 3 years, the annual performance (CAGR) is -20.9%, which is lower, thus worse than the value of 9.4% 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.'

Applying this definition to our asset in some examples:- The historical 30 days volatility over 5 years of iPath Series B S&P 500 VIX Mid-Term Futures ETN is 35.5%, which is greater, thus worse compared to the benchmark SPY (21.3%) in the same period.
- Looking at volatility in of 28.6% in the period of the last 3 years, we see it is relatively larger, thus worse in comparison to SPY (17.6%).

'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.'

Using this definition on our asset we see for example:- Looking at the downside risk of 21.3% in the last 5 years of iPath Series B S&P 500 VIX Mid-Term Futures ETN, we see it is relatively greater, thus worse in comparison to the benchmark SPY (15.3%)
- During the last 3 years, the downside volatility is 19.1%, which is larger, thus worse than the value of 12.3% from the benchmark.

'The Sharpe ratio was developed by Nobel laureate William F. Sharpe, and is used to help investors understand the return of an investment compared to its risk. The ratio is the average return earned in excess of the risk-free rate per unit of volatility or total risk. Subtracting the risk-free rate from the mean return allows an investor to better isolate the profits associated with risk-taking activities. One intuition of this calculation is that a portfolio engaging in 'zero risk' investments, such as the purchase of U.S. Treasury bills (for which the expected return is the risk-free rate), has a Sharpe ratio of exactly zero. Generally, the greater the value of the Sharpe ratio, the more attractive the risk-adjusted return.'

Applying this definition to our asset in some examples:- Looking at the ratio of return and volatility (Sharpe) of -0.23 in the last 5 years of iPath Series B S&P 500 VIX Mid-Term Futures ETN, we see it is relatively lower, thus worse in comparison to the benchmark SPY (0.47)
- During the last 3 years, the risk / return profile (Sharpe) is -0.82, which is smaller, 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.'

Which means for our asset as example:- Looking at the ratio of annual return and downside deviation of -0.39 in the last 5 years of iPath Series B S&P 500 VIX Mid-Term Futures ETN, we see it is relatively lower, thus worse in comparison to the benchmark SPY (0.66)
- During the last 3 years, the ratio of annual return and downside deviation is -1.23, which is lower, thus worse than the value of 0.56 from the benchmark.

'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.'

Which means for our asset as example:- Compared with the benchmark SPY (9.43 ) in the period of the last 5 years, the Ulcer Index of 30 of iPath Series B S&P 500 VIX Mid-Term Futures ETN is greater, thus worse.
- Looking at Downside risk index in of 31 in the period of the last 3 years, we see it is relatively higher, thus worse in comparison to SPY (10 ).

'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 reduction from previous high of -61.7 days in the last 5 years of iPath Series B S&P 500 VIX Mid-Term Futures ETN, we see it is relatively lower, thus worse in comparison to the benchmark SPY (-33.7 days)
- During the last 3 years, the maximum DrawDown is -58.7 days, which is smaller, thus worse than the value of -24.5 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.'

Which means for our asset as example:- The maximum days below previous high over 5 years of iPath Series B S&P 500 VIX Mid-Term Futures ETN is 932 days, which is higher, thus worse compared to the benchmark SPY (479 days) in the same period.
- Compared with SPY (479 days) in the period of the last 3 years, the maximum days under water of 713 days is larger, 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 below previous high over 5 years of iPath Series B S&P 500 VIX Mid-Term Futures ETN is 388 days, which is greater, thus worse compared to the benchmark SPY (119 days) in the same period.
- Looking at average time in days below previous high water mark in of 344 days in the period of the last 3 years, we see it is relatively greater, thus worse in comparison to SPY (173 days).

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.