Strategy. Principal Investment Strategies: The Fund is an actively managed exchange-traded fund (ETF) that seeks daily investment results, before fees and expenses, that correspond to approximately one-fifth to three-tenths the inverse (-0.2x to -0.3x) of the performance of a short-term volatility futures index (the Index) for a single day, not for any other period. In pursuing its investment objective, the Fund primarily purchases or sells futures contracts, call options, and put options on VIX futures. The Fund may also pursue its objective by investing in other ETFs, including affiliated ETFs. The Fund holds cash, cash-like instruments or high-quality fixed income securities (collectively, Collateral). The Collateral may consist of income-producing (1) U.S. Government securities, such as bills, notes and bonds issued by … Show more… Principal Investment Strategies: The Fund is an actively managed exchange-traded fund (ETF) that seeks daily investment results, before fees and expenses, that correspond to approximately one-fifth to three-tenths the inverse (-0.2x to -0.3x) of the performance of a short-term volatility futures index (the Index) for a single day, not for any other period. In pursuing its investment objective, the Fund primarily purchases or sells futures contracts, call options, and put options on VIX futures. The Fund may also pursue its objective by investing in other ETFs, including affiliated ETFs. The Fund holds cash, cash-like instruments or high-quality fixed income securities (collectively, Collateral). The Collateral may consist of income-producing (1) U.S. Government securities, such as bills, notes and bonds issued by the U.S. Treasury; (2) money market funds (including affiliated money market ETFs); (3) fixed income ETFs; (4) collateralized repurchase agreements; and/or (5) corporate debt securities, such as commercial paper and other short-term unsecured promissory notes issued by companies that are rated investment grade or of comparable quality. The Fund seeks to engage in reverse repurchase agreements and use the proceeds for investment purposes. Reverse repurchase agreements are contracts in which a seller of securities, for example, U.S. government securities or other money market instruments, agrees to buy the securities back at a specified time and price. Reverse repurchase agreements are primarily used by the Fund as an indirect means of borrowing. The Fund also applies an option overlay strategy in seeking to mitigate against extreme volatility. Option Overlay Strategy Up to twenty percent of the Funds net assets will be subject to the Funds option overlay to mitigate against extreme volatility. Volatility is when a security experiences periods of unpredictable, and sometimes sharp, price movements. The option overlay strategy consists of purchasing exchange-traded and over-the-counter (OTC) put and call options on the Index or Index-linked exchange traded products. When the Fund purchases a call option, the Fund has the right, but not the obligation, to buy a stock or other asset at a specified price (strike price) within a specific time period. When the Fund purchases a put option, the Fund has the right, but not the obligation, to sell a stock or other asset at a specified price (strike price) within a specific time period. The option overlay is a strategic, persistent exposure meant to hedge against market moves and to add convexity to the Fund. If the market goes up, the Funds returns may outperform the market because the Adviser will sell or exercise the call options. If the market goes down, the Funds returns may fall less than the market because the Adviser will sell or exercise the put options. The Adviser selects options based upon its evaluation of relative value based on cost, strike price (price that the option can be bought or sold by the option holder) and maturity (the last date the option contract is valid) and will exercise or close the options based on maturity or portfolio rebalancing requirements. The Fund anticipates purchasing and selling options on a monthly, quarterly, and annual basis, depending upon the Funds rebalancing requirements and the individual option expiration dates. However, the Fund may rebalance its option portfolio on a more frequent basis for a number of reasons such as if market volatility renders the protection provided by the option strategy ineffective or an option position has appreciated to the point that it is prudent to decrease the Funds exposure and realize gains for the Funds shareholders. While the option overlay is intended to improve the Funds performance, there is no guarantee that it will do so. The Funds returns are intended to possess convexity because the relationship between the Funds returns and market returns is not designed to be linear. That is, if market returns go up and down in a linear fashion, the Funds returns are expected to rise faster than the market in positive markets; while declining less than the market in negative markets. The value of the Funds call options is expected to rise in proportion to the rise in value of the underlying assets, but the amount by which the Funds options increase or decrease in value depends on how far the market has moved from the time the options position was initiated. The value of the Funds call options is expected to rise faster than the market if the Adviser successfully selects options that appreciate in value. The value of the Funds put options are expected to decrease in proportion to the decrease in the value of the underlying assets, but the amount by which the Funds put options decrease in value depends on how far the market has moved since from the time the position was initiated. The return of the Fund for a period longer than a single day is the result of its return for each day compounded over the period and usually will differ in amount and possibly even direction from the Funds stated multiple times the return of the Index for the same period. These differences can be significant. Daily compounding of the investment return of the Fund can dramatically and adversely affect its longer-term performance, especially during periods of high volatility. Volatility has a negative impact on the Funds performance and the volatility of the Index may be at least as important to the returns of the Fund as the return of the Index. A single day is measured from the time the Fund calculates its net asset value (NAV) to the time of the Funds next NAV calculation. The NAV calculation time for the Fund typically is 4:00 p.m. (Eastern Time). The Index is a non-investable index that measures the implied volatility of the S&P 500. For these purposes, implied volatility is a measure of the expected volatility (i.e., the rate and magnitude of variations in performance) of the S&P 500 over the next 30 days. The Index does not represent the actual volatility of the S&P 500. The Index is calculated based on the prices of a constantly changing portfolio of S&P 500 put and call options. The Fund may engage in daily rebalancing to position its portfolio so that its exposure to the Index is consistent with its daily investment objective (-0.2x to -0.3x). The impact of changes to the value of the Index each day will affect whether the Funds portfolio needs to be rebalanced. For example, if the level of the Index has risen on a given day, net assets of the Fund should fall (assuming there were no Creation Units issued). As a result, inverse exposure may need to be decreased. Conversely, if the level of the Index has fallen on a given day, net assets of the Fund should rise (assuming there were no Creation Unit redemptions). As a result, inverse exposure may need to be increased. The time and manner in which the Fund rebalances its portfolio may vary from day to day depending upon market conditions and other circumstances at the discretion of the Adviser. The Fund invests in certain futures markets (such as VIX futures) indirectly by investing up to 25% of its total assets (measured at the time of investment) in a wholly-owned and controlled subsidiary. These investments are designed to enhance the ability of the Fund to obtain exposure to the futures market consistent with the limits of the U.S. federal tax law requirements applicable to registered investment companies. The returns from the investments in the Funds subsidiary are income to the Fund and the shareholders. Unlike the Fund, the Subsidiary may invest without limitation indirectly in certain futures-linked derivatives investments, however, the Subsidiary will comply with the same Investment Company Act of 1940 asset coverage requirements, when viewed on a consolidated basis with the Fund, with respect to its investments in derivatives. Show less