| Guggenheim BulletShares 2017 Corporate Bond ETF (Prospectus Summary) | Guggenheim BulletShares 2017 Corporate Bond ETF | ||||||||||||||||||||||||||||||
| Guggenheim BulletShares 2017 Corporate Bond ETF | ||||||||||||||||||||||||||||||
| Investment Objective | ||||||||||||||||||||||||||||||
| The Fund seeks investment results that correspond generally to the performance, before the Fund's fees and expenses, of an investment grade corporate bond index called the BulletShares® USD Corporate Bond 2017 Index (the "2017 Index" or the "Index"). |
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| Fees and Expenses of the Fund | ||||||||||||||||||||||||||||||
| This table describes the fees and expenses that you may pay if you buy and hold shares of the Fund ("Shares"). Investors purchasing Shares in the secondary market may be subject to costs (including customary brokerage commissions) charged by their broker. |
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| Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment) | ||||||||||||||||||||||||||||||
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| Example | ||||||||||||||||||||||||||||||
| This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other funds. The Example does not take into account brokerage commissions that you may pay when purchasing or selling Shares. The Example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods. The Example also assumes that your investment has a 5% return each year and that the Fund's operating expenses remain the same. Although your actual costs may be higher or lower, based on these assumptions your costs would be: |
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| Portfolio Turnover | ||||||||||||||||||||||||||||||
| The Fund pays transaction costs, such as commissions, when it buys and sells securities (or "turns over" its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund's performance. During the most recent fiscal year, the Fund's portfolio turnover rate was 3% of the average value of its portfolio. |
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| Principal Investment Strategies | ||||||||||||||||||||||||||||||
| The Fund, using a low cost "passive" or "indexing" investment approach, will seek to replicate, before the Fund's fees and expenses, the performance of the 2017 Index. The 2017 Index is a rules-based index comprised of, as of the date of this prospectus, approximately 212 investment grade corporate bonds with effective maturities in the year 2017. The 2017 Index is designed to represent the performance of a held-to-maturity portfolio of U.S. dollar-denominated investment-grade corporate bonds with effective maturities in the year 2017. The effective maturity of an eligible corporate bond is determined by its actual maturity or, in the case of callable securities, the effective maturity of the security as determined in accordance with a rules-based methodology developed by Accretive Asset Management LLC ("Accretive" or the "Index Provider"). The Fund has a designated year of maturity of 2017 and will terminate on or about December 31, 2017. In connection with such termination, the Fund will make a cash distribution to then-current shareholders of its net assets after making appropriate provisions for any liabilities of the Fund. The Fund does not seek to return any predetermined amount at maturity. The Fund will invest at least 80% of its total assets in component securities that comprise the 2017 Index. Under normal conditions, the Fund will invest at least 80% of its net assets in corporate bonds. The Fund has adopted a policy that requires the Fund to provide shareholders with at least 60 days notice prior to any material change in this policy or the 2017 Index. In the last six months of operation, when the bonds held by the Fund mature, the Fund's portfolio will transition to cash and cash equivalents, including without limitation U.S. Treasury Bills and investment grade commercial paper. The Fund will terminate on or about December 31, 2017 without requiring additional approval by the Trust's Board of Trustees (the "Board") or Fund shareholders. The Board may change the termination date to an earlier or later date without shareholder approval if a majority of the Board determines the change to be in the best interest of the Fund. The Board of Trustees of the Trust may change the Fund's investment strategy and other policies without shareholder approval, except as otherwise indicated. The Fund expects to use a sampling approach in seeking to achieve its investment objective. Sampling means that the Investment Adviser uses quantitative analysis to select securities from the Index universe to obtain a representative sample of securities that resemble the Index in terms of key risk factors, performance attributes and other characteristics. These characteristics include maturity, credit quality, sector, duration and other financial characteristics of fixed income securities. The quantity of holdings in the Fund will be based on a number of factors, including the asset size of the Fund, potential transaction costs in acquiring particular securities, the anticipated impact of particular index securities on the performance of the Index and the availability of particular securities in the secondary market. However, the Fund may use replication to achieve its objective if practicable. There may also be instances in which the Investment Adviser may choose to overweight another security in the Index, or purchase (or sell) securities not in the Index which the Investment Adviser believes are appropriate to substitute for one or more Index components, in seeking to accurately track the Index. In addition, from time to time securities are added to or removed from the Index. The Fund may sell securities that are represented in the Index or purchase securities that are not yet represented in the Index in anticipation of their removal from or addition to the Index. If the Index concentrates in a particular industry or group of industries, the Fund's investments will be concentrated accordingly. |
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| Principal Investment Risks | ||||||||||||||||||||||||||||||
| Investors should consider the following risk factors and special considerations associated with investing in the Fund, which may cause you to lose money. Investment Risk. An investment in the Fund is subject to investment risk, including the possible loss of the entire principal amount that you invest. Interest Rate Risk. As interest rates rise, the value of fixed-income securities held by the Fund are likely to decrease. Securities with longer durations tend to be more sensitive to interest rate changes, making them more volatile than securities with shorter durations. Credit/Default Risk. Issuers or guarantors of debt instruments or the counterparty to a repurchase agreement or loan of portfolio securities may be unable or unwilling to make timely interest and/or principal payments or otherwise honor its obligations. Debt instruments are subject to varying degrees of credit risk, which may be reflected in credit ratings. Securities issued by the U.S. government generally have less credit risk than debt securities of non-government issuers. However, securities issued by certain U.S. government agencies are not necessarily backed by the full faith and credit of the U.S. government. Credit rating downgrades and defaults (failure to make interest or principal payment) may potentially reduce the Fund's income and share price. Asset Class Risk. The bonds in the Fund's portfolio may underperform the returns of other bonds or indexes that track other industries, markets, asset classes or sectors. Different types of bonds and indexes tend to go through different performance cycles than the general bond market. Call Risk/Prepayment Risk. During periods of falling interest rates, an issuer of a callable bond may exercise its right to pay principal on an obligation earlier than expected. This may result in the Fund reinvesting proceeds at lower interest rates, resulting in a decline in the Fund's income. Extension Risk. An issuer may exercise its right to pay principal on an obligation later than expected. This may happen when there is a rise in interest rates. Under these circumstances, the value of the obligation will decrease and the Fund's performance may suffer from its inability to invest in higher yielding securities. Income Risk. Falling interest rates may cause the Fund's income to decline. Liquidity Risk. Liquidity risk exists when particular investments are difficult to purchase or sell. If the Fund invests in illiquid securities or securities that become illiquid, Fund returns may be reduced because the Fund may be unable to sell the illiquid securities at an advantageous time or price. Declining Yield Risk. During the final year of the Fund's operations, as the bonds held by the Fund mature and the Fund's portfolio transitions to cash and cash equivalents, the Fund's yield will generally tend to move toward the yield of cash and cash equivalents and thus may be lower than the yields of the bonds previously held by the Fund and/or prevailing yields for bonds in the market. Fluctuation of Yield and Liquidation Amount Risk. The Fund, unlike a direct investment in a bond that has a level coupon payment and a fixed payment at maturity, will make distributions of income that vary over time. Unlike a direct investment in bonds, the breakdown of returns between Fund distributions and liquidation proceeds are not predictable at the time of your investment. For example, at times during the Fund's existence, it may make distributions at a greater (or lesser) rate than the coupon payments received on the Fund's portfolio, which will result in the Fund returning a lesser (or greater) amount on liquidation than would otherwise be the case. The rate of Fund distribution payments may adversely affect the tax characterization of your returns from an investment in the Fund relative to a direct investment in corporate bonds. If the amount you receive as liquidation proceeds upon the Fund's termination is higher or lower than your cost basis, you may experience a gain or loss for tax purposes. Financial Services Sector Risk. The financial services industries are subject to extensive government regulation, can be subject to relatively rapid change due to increasingly blurred distinctions between service segments, and can be significantly affected by availability and cost of capital funds, changes in interest rates, the rate of corporate and consumer debt defaults, and price competition. In addition, the deterioration of the credit markets since late 2007 generally has caused an adverse impact in a broad range of markets, including U.S. and international credit and interbank money markets generally, thereby affecting a wide range of financial institutions and markets. In particular, events in the financial sector since late 2008 have resulted, and may continue to result, in an unusually high degree of volatility in the financial markets, both domestic and foreign. This situation has created instability in the financial markets and caused certain financial services companies to incur large losses. Numerous financial services companies have experienced substantial declines in the valuations of their assets, taken action to raise capital (such as the issuance of debt or equity securities), or even ceased operations. These actions have caused the securities of many financial services companies to experience a dramatic decline in value. Issuers that have exposure to the real estate, mortgage and credit markets have been particularly affected by the foregoing events and the general market turmoil, and it is uncertain whether or for how long these conditions will continue. Non-Correlation Risk. The Fund's return may not match the return of the Index for a number of reasons. For example, the Fund incurs a number of operating expenses not applicable to the Index, and incurs costs in buying and selling securities, especially when rebalancing the Fund's securities holdings to reflect changes in the composition of the Index. Since the Index constituents may vary on a monthly basis, the Fund's costs associated with rebalancing may be greater than those incurred by other exchange-traded funds ("ETFs") that track indices whose composition changes less frequently. The Fund may not be fully invested at times, either as a result of cash flows into the Fund or reserves of cash held by the Fund to meet redemptions and expenses. Since the Fund utilizes a sampling approach, its return may not correlate as well with the return on the Index as would be the case if it purchased all of the securities in the Index with the same weightings as the Index. Concentration Risk. If the Index concentrates in an industry or group of industries the Fund's investments will be concentrated accordingly. In such event, the value of the Fund's Shares may rise and fall more than the value of shares of a fund that invests in securities of companies in a broader range of industries. Passive Management Risk. Unlike many investment companies, the Fund is not "actively" managed. Therefore, it would not necessarily sell a security because the security's issuer was in financial trouble or defaulted, or whose credit rating was downgraded, unless that security is removed from the Index. Issuer-Specific Changes. The value of an individual security or particular type of security can be more volatile than the market as a whole and can perform differently from the value of the market as a whole. The value of securities of smaller issuers can be more volatile than that of larger issuers. Risk of Cash Transactions. In certain instances, unlike most ETFs, the Fund may effect creations and redemptions for cash, rather than in-kind. As a result, an investment in the Fund may be less tax-efficient than an investment in a more conventional ETF. ETFs generally are able to make in-kind redemptions and avoid being taxed on gain on the distributed portfolio securities at the Fund level. Because the Fund may effect redemptions for cash, rather than in-kind distributions, it may be required to sell portfolio securities in order to obtain the cash needed to distribute redemption proceeds. If the Fund recognizes gain on these sales, this generally will cause the Fund to recognize gain it might not otherwise have recognized, or to recognize such gain sooner than would otherwise be required if it were to distribute portfolio securities in-kind. The Fund generally intends to distribute these gains to shareholders to avoid being taxed on this gain at the Fund level and otherwise comply with the special tax rules that apply to it. This strategy may cause shareholders to be subject to tax on gains they would not otherwise be subject to, or at an earlier date than, if they had made an investment in a different ETF. Moreover, cash transactions may have to be carried out over several days if the securities market is relatively illiquid and may involve considerable brokerage fees and taxes. These brokerage fees and taxes, which will be higher than if the Fund sold and redeemed its Shares principally in-kind, will be passed on to purchasers and redeemers of Creation Units in the form of creation and redemption transaction fees. Non-Diversified Fund Risk. The Fund is considered non-diversified and can invest a greater portion of assets in securities of individual issuers than a diversified fund. As a result, changes in the market value of a single investment could cause greater fluctuations in Share price than would occur in a diversified fund. The Fund's Shares will change in value, and you could lose money by investing in the Fund. The Fund may not achieve its investment objective. An investment in the Fund has not been guaranteed, sponsored, recommended, or approved by the United States, or any agency, instrumentality or officer of the United States, has not been insured by the Federal Deposit Insurance Corporation (FDIC) and is not guaranteed by and is not otherwise an obligation of any bank or insured depository institution. |
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| Fund Performance | ||||||||||||||||||||||||||||||
| The chart and table below provide some indication of the risks of investing in the Fund by showing changes in the Fund's performance from year to year and by showing how the Fund's average annual returns for one year and since inception compare with those of the Index and a broad measure of market performance. The Fund's past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information for the Fund is available at www.guggenheimfunds.com. |
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| Calendar Year Total Return as of 12/31 | ||||||||||||||||||||||||||||||
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| The Fund commenced operations on June 7, 2010. The Fund's year-to-date total return was 5.50% as of June 30, 2012. During the period shown in the chart above, the Fund's highest and lowest calendar quarter returns were 2.72% and -0.84%, respectively, for the quarters ended June 30, 2011 and September 30, 2011. |
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| All after-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of any state or local tax. Your own actual after-tax returns will depend on your tax situation and may differ from what is shown here. After-tax returns are not relevant to investors who hold Shares of the Fund in tax-deferred accounts such as individual retirement accounts (IRAs) or employee-sponsored retirement plans. |
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| Average Annual Total Returns for the Periods Ended December 31, 2011 | ||||||||||||||||||||||||||||||
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