Guggenheim Discount Opportunity Strategy Portfolio of CEFs Series 10

The Trust will invest in common shares of closed-end investment companies (“Closed-End Funds”) that are currently trading at a greater percentage discount to their net asset value (“NAV Discount”) than their historical NAV Discount. The Trust seeks capital appreciation by selecting Closed-End Funds that the Sponsor believes have the potential to narrow the gap between their current NAV Discount and their historical NAV Discount. The Trust portfolio will include a variety of Closed-End Funds, including general equity funds, taxable fixed-income funds, municipal funds and balanced/multi-asset funds. The Closed-End Funds will invest in securities of a variety of asset classes. These asset classes include, but are not limited to:

• high-yield securities or “junk” bonds;
• convertible securities;
• preferred securities;
• real estate investment trusts (“REITs”);
• senior loans;
• corporate bonds;
• government bonds;
• municipal bonds;
• options;
• foreign securities, including securities of companies located in emerging markets; and
• equities.

The Sponsor, with the assistance of Guggenheim Partners Investment Management, LLC (“GPIM”), an affiliate of Guggenheim Partners, LLC, has selected the securities to be included in the Trust’s portfolio according to the selection criteria described below.

The security selection process begins by identifying the entire universe of Closed-End Funds listed on an U.S. public securities exchange as provided by Morningstar. As of the security selection date, each Closed-End Fund is then ranked by:

• Current NAV Discount versus historic monthly NAV Discounts, a metric commonly referred to as a “Z-Score.” The lowest “Z-Score” values represent the deepest discounts relative to prior range of discounts, and also represent the highest rank.
• Trailing six month total return, where the highest values represent the highest rank.

Closed-End Funds with better ranks will be considered more strongly for inclusion in the Trust, subject to the Sponsor’s discretion. In addition, the Trust will be subject to the following constraints (as measured on the security selection date). For the constraints that reference Closed-End Fund classifications, the “Asset Category” and “Classification” attributes are sourced from Morningstar Traded Fund Center (formerly FundData).

• Exclude Closed-End Funds in the initial universe ranked in the worst 20% in any of the following three metrics: (i) current NAV Discount, where lower values rank better, (ii) “Z-score,” where lower “Z-score” values rank higher, or (iii) trailing six month total return, as sourced from FactSet, where the highest values represent the highest rank;
• No more than 60% in Closed-End Funds with “Asset Category” of “Equity”;
• No more than 60% in Closed-End Funds with “Asset Category” of “Taxable Fixed Income”;
• No more than 20% in Closed-End Funds with “Asset Category” of “Municipal”;
• No more than 30% in Closed-End Funds with “Asset Category” of “Hybrid (Growth & Income)”;
• No more than 25% in Closed-End Funds with the same “Classification”;
• Exclude securities with trading liquidity of less than $400,000 (or less than the median trading liquidity of the entire Closed-End Fund starting universe if that is less than $400,000). Trading liquidity is measured by the median daily dollar volume (daily volume times closing daily price) over the prior 30 trading days, as sourced from FactSet; and
• Exclude Closed-End Funds advised by the Sponsor or its affiliates.

Final Trust selections will be influenced by the rankings and constraints described above as well as the Sponsor’s outlook for an individual fund and/or Closed-End Fund marketplace. Closed-End Funds selected for the portfolio will be equally-weighted as of the selection date. Please note that due to the fluctuating nature of security prices, the weighting of an individual security or sector in the Trust portfolio may change after the selection date.

Some of the securities held by the Closed- End Funds are income-producing securities, including corporate bonds, preferred securities and high-yield bonds. High-yield or “junk” bonds, the generic names for bonds rated below investment-grade, are frequently issued by corporations in the growth stage of their development or by established companies who are highly leveraged or whose operations or industries are depressed. Obligations rated below investment-grade should be considered speculative as these ratings indicate a quality of less than investment-grade. Because high-yield bonds are generally subordinated obligations and are perceived by investors to be riskier than higher rated securities, their prices tend to fluctuate more than higher rated securities and are affected by short-term credit developments to a greater degree.

Guggenheim Partners Investment Management, LLC

GPIM is a subsidiary of Guggenheim Partners, LLC and an affiliate of the Sponsor, which offers financial services expertise within its asset management, investment advisory, capital markets, institutional finance and merchant banking business lines. Clients consist of a mix of individuals, family offices, endowments, foundations, insurance companies, pension plans and other institutions that together have entrusted the firm with supervision of more than $100 billion in assets. A global diversified financial services firm, Guggenheim Partners, LLC office locations include New York, Chicago, Los Angeles, Miami, Boston, Philadelphia, St. Louis, Houston, London, Dublin, Geneva, Hong Kong, Singapore, Mumbai and Dubai.

The Sponsor is also a subsidiary of Guggenheim Partners, LLC. See “General Information” for additional information.

As with all investments, you may lose some or all of your investment in the Trust. No assurance can be given that the Trust’s investment objective will be achieved. The Trust also might not perform as well as you expect. This can happen for reasons such as these:

• Securities prices can be volatile. The value of your investment may fall over time. Market value fluctuates in response to various factors. These can include stock market movements, purchases or sales of securities by the Trust, government policies, litigation, and changes in interest rates, inflation, the financial condition of the securities’ issuer or even perceptions of the issuer. Units of the Trust are not deposits of any bank and are not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency.
• The Trust includes Closed-End Funds. Closed-End Funds are actively managed investment companies that invest in various types of securities. Closed-End Funds issue common shares that are traded on a securities exchange. Closed-End Funds are subject to various risks, including management’s ability to meet the Closed-End Fund’s investment objective and to manage the Closed- End Fund’s portfolio during periods of market turmoil and as investors’ perceptions regarding Closed-End Funds or their underlying investments change. Closed-End Funds are not redeemable at the option of the shareholder and they may trade in the market at a discount to their net asset value. Closed-End Funds may also employ the use of leverage which increases risk and volatility. Instability in the auction rate preferred shares market may affect the volatility of Closed-End Funds that use such instruments to provide leverage.
• The Closed-End Funds are subject to annual fees and expenses, including a management fee. Unitholders of the Trust will bear these fees in addition to the fees and expenses of the Trust. See “Fees and Expenses” for additional information.
• The value of the fixed-income securities in the Closed-End Funds will generally fall if interest rates, in general, rise. Typically, fixed-income securities with longer periods before maturity are more sensitive to interest rate changes. The Trust may be subject to greater risk of rising interest rates than would normally be the case due to the current period of historically low rates.
• A Closed-End Fund or an issuer of securities held by a Closed-End Fund may be unwilling or unable to make principal payments and/or to declare distributions in the future, may call a security before its stated maturity, or may reduce the level of distributions declared. This may result in a reduction in the value of your units.
• The financial condition of a Closed- End Fund or an issuer of securities held by a Closed-End Fund may worsen, resulting in a reduction in the value of your units. This may occur at any point in time, including during the primary offering period.
• Certain Closed-End Funds held by the Trust invest in companies in the energy sector. Companies in the energy sector are subject to volatile fluctuations in price and supply of energy fuels, and can be impacted by international politics and conflicts, including the unrest in Iraq and hostilities in the Middle East, terrorist attacks, the success of exploration projects, reduced demand as a result of increases in energy efficiency and energy conservation, natural disasters, clean-up and litigation costs associated with environmental damage and extensive regulation.
• Certain Closed-End Funds held by the Trust may invest in securities that are rated below investment-grade and are considered to be “junk” securities. Below investment-grade obligations are considered to be speculative and are subject to greater market and credit risks, and accordingly, the risk of non-payment or default is higher than with investment-grade securities. In addition, such securities may be more sensitive to interest rate changes and more likely to receive early returns of principal.
• Certain Closed-End Funds held by the Trust may invest in securities that are rated as investment-grade by only one rating agency. As a result, such split-rated securities may have more speculative characteristics and are subject to a greater risk of default than securities rated as investment-grade by more than one rating agency.
• Certain Closed-End Funds held by the Trust invest in foreign securities. Investment in foreign securities presents additional risk. Foreign risk is the risk that foreign securities will be more volatile than U.S. securities due to such factors as adverse economic, currency, political, social or regulatory developments in a country, including government seizure of assets, excessive taxation, limitations on the use or transfer of assets, the lack of liquidity or regulatory controls with respect to certain industries or differing legal and/or accounting standards.
• Certain Closed-End Funds held by the Trust invest in securities issued by companies headquartered or incorporated in countries considered to be emerging markets. Emerging markets are generally defined as countries with low per capita income in the initial stages of their industrialization cycles. Risks of investing in developing or emerging countries include the possibility of investment and trading limitations, liquidity concerns, delays and disruptions in settlement transactions, political uncertainties and dependence on international trade and development assistance. Companies headquartered in emerging market countries may be exposed to greater volatility and market risk.
• Certain Closed-End Funds held by the Trust invest in common stocks. Common stocks represent a proportional share of ownership in a company. Common stock prices fluctuate for several reasons including changes in investors’ perceptions of the financial condition of an issuer, changes in the general condition of the relevant stock market, such as the market volatility recently exhibited, or when political or economic events affect the issuers. Common stock prices may also be particularly sensitive to rising interest rates, as the cost of capital rises and borrowing costs increase.
• Certain Closed-End Funds held by the Trust may invest in securities issued by small-capitalization and mid-capitalization companies. These securities customarily involve more investment risk than securities of large-capitalization companies. Small-capitalization and mid-capitalization companies may have limited product lines, markets or financial resources and may be more vulnerable to adverse general market or economic developments.
• Economic conditions may lead to limited liquidity and greater volatility. The markets for fixed-income securities, such as those held by certain Closed-End Funds, may experience periods of illiquidity and volatility. General market uncertainty and consequent repricing risk have led to market imbalances of sellers and buyers, which in turn have resulted in significant valuation uncertainties in a variety of fixed-income securities. These conditions resulted, and in many cases continue to result in, greater volatility, less liquidity, widening credit spreads and a lack of price transparency, with many debt securities remaining illiquid and of uncertain value. These market conditions may make valuation of some of the securities held by a Closed-End Fund uncertain and/or result in sudden and significant valuation increases or declines in its holdings.
• Inflation may lead to a decrease in the value of assets or income from investments.
• The Sponsor does not actively manage the portfolio. The Trust will generally hold, and may, when creating additional units, continue to buy, the same securities even though a security’s outlook, market value or yield may have changed.

See “Investment Risks” in Part A of the prospectus and “Risk Factors” in Part B of the prospectus for additional information.