Claymore/Guggenheim Build America Bonds Trust Series 1

As of the initial date of deposit, the Trust will invest in a portfolio of taxable municipal bonds, of which at least 80% of its assets will be invested in Build America Bonds. The Sponsor will select bonds that it believes have the best chance to meet the Trust’s investment objective over its life.

With the signing into law of the American Recovery and Reinvestment Act of 2009 (the “Recovery Act”), an entirely new type of taxable municipal bond was created—Build America Bonds. Build America Bonds are largely similar to traditional tax-exempt municipal bonds except that the interest is taxable at the federal, and possibly state and local, levels and they provide a government subsidy feature to the issuer. The federal government reimburses the municipality for 35% (45% in the case of certain bonds) of the interest paid on Build America Bonds issued through 2010. More specifically, a Build America Bond is defined as any obligation (other than a private activity bond) if (i) the interest on such obligation would, but for the new provisions, be excludable from gross income under Section 103 of the Internal Revenue Code, (ii) such obligation is issued before January 1, 2011 and (iii) the issuer makes an irrevocable election to have the new tax credit provision apply. The subsidy provided by the government will allow issuers to offer higher interest rates on bonds than they do on their taxfree debt, while offsetting some or all of the additional financing burden. The available subsidy for any applicable bond in the portfolio will be paid to the bond issuers only; neither the Trust nor unitholders will be entitled to a tax credit.

Municipal bonds are debt instruments issued by state and local governments to raise money for various public works projects such as highways, airports and schools.

As of the Trust’s initial date of deposit (the “Inception Date”), all of the bonds in the portfolio were rated investment-grade quality by at least one of the following ratings agencies: Standard & Poor’s, a division of The McGraw- Hill Companies, Inc. (“Standard & Poor’s”) or Moody’s Investors Service (“Moody’s”). Such ratings relate to the underlying bonds and not the units of the Trust. After the Inception Date, a bond’s rating may be lowered. Investment-grade bonds are bonds that are rated at least in the category of BBB by Standard & Poor’s or Baa by Moody’s. A rating in the category of BBB or Baa is the lowest possible investment-grade rating. See “Description of Bond Ratings” for details.

Certain bonds in the Trust may be covered by insurance policies obtained from municipal bond insurers identified in “Trust Portfolio,” which guarantee payment of principal and interest on the bonds when due. As a result of such insurance, the insured bonds have received ratings that may reflect the creditworthiness of the bond issuer. Please note that the insurance relates only to the insured bonds in the Trust and not to the units or the market value of the bonds or of the units.

The Trust intends to pay interest distributions each month and expects to prorate the interest distributed on an annual basis; see “Distributions.” The record dates and distribution dates for principal and interest distribution dates are the 15th and 25th of each month, respectively. Furthermore, investors may receive principal distributions from bonds being called or sold prior to their maturity or as bonds mature.

The Sponsor has selected Guggenheim Partners Investment Management, LLC ("GPIM"), a wholly-owned subsidiary of Guggenheim Partners, LLC, to assist the Sponsor with the selection of the Trust’s portfolio.

The Sponsor considered the following factors, among others, in selecting the bonds:

• The bonds must be rated as investment-grade or above by at least one of the rating agencies (BBB- or above by Standard & Poor’s or Baa3 or above by Moody’s);
• The price of the bonds relative to other bonds with comparable characteristics;
• The diversification of bonds with respect to the issuer with no one issuer comprising more than 20% of the final portfolio;
• Attractiveness of the interest payments relative to bonds with similar characteristics; and
• The potential for early return of principal or any event risk which could have a negative impact on the price of the bonds.

Guggenheim Partners Investment Management, LLC (GPIM)

Guggenheim Partners Investment Management, LLC, 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 an elite 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. The value of the units and the bonds held in the portfolio can each decline in value. 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 also might not perform as well as you expect. This can happen for reasons such as these:

• The Sponsor does not actively manage the portfolio. Because the portfolio is fixed and not managed, in general, the Sponsor only sells bonds at the Trust’s termination or in order to meet redemptions, for tax purposes or to pay sales charges and expenses. As a result, the price at which a bond is sold may not be the highest price the Trust could have received during the life of the Trust.
• No assurance can be given that the Trust’s investment objective will be achieved. This objective is subject to the continuing ability of the respective issuers of the bonds to meet their obligations.
• Due to the current state of the economy, the value of the securities held by the Trust may be subject to steep declines or increased volatility due to changes in performance or perception of the issuers. Starting in December 2007, economic activity declined across all sectors of the economy, and the United States experienced increased unemployment. The economic crisis affected the global economy with European and Asian markets also suffering historic losses. Unemployment remains high in the United States. Extraordinary steps have been taken by the governments of several leading countries to combat the economic crisis; however, the impact of these measures is not yet fully known and cannot be predicted.
• An issuer or an insurer of the bonds may be unwilling or unable to make principal payments and/or interest payments in the future, may call a security before its stated maturity or may reduce the level of payments made. This may result in a reduction in the value of your units.
• The financial condition of an issuer or an insurer of the bonds may worsen or its credit ratings may drop, resulting in a reduction in the value of your units. This may occur at any point in time, including during the primary offering period.
• Municipal bonds are fixed-rate debt obligations that generally decline in value with increases in interest rates, an issuer’s or an insurer’s worsening financial condition or a drop in bond ratings. Typically, bonds with longer periods before maturity are more sensitive to interest rate changes.
• Certain municipal bonds may be 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 any two of Standard & Poor’s or Moody’s.
• Any issuer of a Build America Bond in the Trust portfolio that fails to continue to meet the requirements imposed by the Recovery Act may not receive federal cash subsidy payments, which could impair the issuer’s ability to make scheduled interest payments.
• Changes in the tax treatment of bonds either due to future legislation or due to the failure of a public issuer of a bond (or private guarantor) to meet certain conditions imposed by various tax laws may have an adverse impact on the value of the units and the bonds held in the Trust.
• The income generated by the Trust may be reduced over time in response to bond sales, changes in distributions paid by issuers, unit redemptions and expenses.
• The Trust may sell bonds to meet redemptions, to pay deferred sales fees and expenses, for credit issues and in other circumstances. Accordingly, the size, diversity, composition, returns and income generated by the Trust may be adversely affected. In addition, such sales of bonds may be at a loss. If such sales are substantial enough, provisions of the Trust’s indenture could cause a complete and unexpected liquidation of the Trust before its scheduled maturity, resulting in unanticipated losses for investors.
• Certain of the bonds included in the Trust may be original issue discount bonds, as noted in “Trust Portfolio.” These bonds may be subject to greater price fluctuations with changing interest rates and contain additional risks.
• Inflation may lead to a decrease in the value of assets or income from investments.