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Guggenheim Investments Announces a Change to the Ex-Dividend and Record Dates for Its March 2013 Closed-End Fund Distributions

NEW YORK, March 11, 2013 (GLOBE NEWSWIRE) -- Guggenheim Investments announced today a change to the ex-dividend and record dates for previously-declared March 2013 distributions for certain of its closed-end funds. The Record Date has changed from March 15, 2013 to March 21, 2013, and the Ex-Dividend Date has changed from March 13, 2013 to March 19, 2013. The payable date and the payable amount will not change. The table below summarizes the distribution schedule for each closed-end fund (collectively, the "Funds" and each, a "Fund").

The following dates apply to the distributions:

Updated Record Date March 21, 2013
Updated Ex-Dividend Date March 19, 2013
Payable Date March 28, 2013
Distribution Schedule
NYSE
Ticker
Closed-End Fund Name Distribution
Per Share

Frequency
AVK Advent Claymore Convertible Securities and Income Fund $0.0939 Monthly
AGC Advent Claymore Convertible Securities and Income Fund II $0.0470 Monthly
GBAB Guggenheim Build America Bonds Managed Duration Trust $0.1348 Monthly
GOF Guggenheim Strategic Opportunities Fund $0.1694 Monthly
GPM Guggenheim Enhanced Equity Income Fund $0.2400 Quarterly
MZF Managed Duration Investment Grade Municipal Fund $0.0775 Monthly
WIA Western Asset/Claymore Inflation-Linked Securities & Income Fund $0.0320 Monthly
WIW Western Asset/Claymore Inflation-Linked Opportunities & Income Fund $0.0335 Monthly

Past performance is not indicative of future performance. If it is determined that a notification is required, pursuant to Section 19(a) of the Investment Company Act of 1940, as amended, such notice will be posted to such Fund's website after the close of business three business days prior to the payable date. Distributions may be comprised of sources other than income, which may not reflect actual Fund performance.

About Guggenheim Investments

Guggenheim Investments represents the investment management division of Guggenheim Partners, LLC ("Guggenheim"), which consists of investment managers with approximately $143 billion in combined total assets*. Collectively, Guggenheim Investments has a long, distinguished history of serving institutional investors, ultra-high-net-worth individuals, family offices and financial intermediaries. Guggenheim Investments offers clients a wide range of differentiated capabilities built on a proven commitment to investment excellence. Guggenheim Investments has offices in Chicago, New York City and Santa Monica, along with a global network of offices throughout the United States, Europe, and Asia.

Guggenheim Investments is comprised of several investment management entities within Guggenheim, which includes Guggenheim Funds Distributors, LLC and Guggenheim Funds Investment Advisors, LLC (together, "Guggenheim Funds"). Guggenheim Funds Investment Advisors, LLC serves as Investment Adviser for AGC, GBAB, GOF, GPM, and WIW. Guggenheim Funds Distributors, LLC serves as Servicing Agent for AVK, MZF and WIA. The Investment Advisers for AVK, MZF and WIA are Advent Capital Management, LLC, Cutwater Investor Services Corporation and Western Asset Management Company, respectively.

* The total asset figure is as of 12/31/2012 and includes $10.71B of leverage for Assets Under Management and $0.85B of leverage for Serviced Assets. Total assets include assets from Security Investors, LLC, Guggenheim Partners Investment Management, LLC ("GPIM", formerly known as Guggenheim Partners Asset Management, LLC; GPIM assets also include all assets from Guggenheim Investment Management, LLC which were transferred as of 06/30/2012), Guggenheim Funds Investment Advisors and its affiliated entities, and some business units including Guggenheim Real Estate, LLC, Guggenheim Aviation, GS GAMMA Advisors, LLC, Guggenheim Partners Europe Limited, Transparent Value Advisors, LLC, and Guggenheim Partners India Management. Values from some funds are based upon prior periods.

This information does not represent an offer to sell securities of the Funds and it is not soliciting an offer to buy securities of the Funds. There can be no assurance that the Funds will achieve their investment objectives. The net asset value of the Funds will fluctuate with the value of the underlying securities. It is important to note that closed-end funds trade on their market value, not net asset value, and closed-end funds often trade at a discount to their net asset value. Past performance is not indicative of future performance. An investment in closed-end funds is subject to investment risk, including the possible loss of the entire amount that you invest. Some general risks and considerations associated with investing in a closed-end fund include: Investment and Market Risk; Lower Grade Securities Risk; Equity Securities Risk; Foreign Securities Risk; Interest Rate Risk; Illiquidity Risk; Derivative Risk; Management Risk; Anti-Takeover Provisions; Market Disruption Risk and Leverage Risk. In addition, AGC, AVK, and MZF are subject to AMPS Risk. See www.guggenheiminvestments.com/products/cef for a detailed discussion of fund-specific risks.

Investors should consider the investment objectives and policies, risk considerations, charges and expenses of any investment before they invest. For this and more information visit www.guggenheiminvestments.com or contact a securities representative or Guggenheim Funds Distributors, LLC 2455 Corporate West Drive, Lisle, IL 60532, 800-345-7999.

NOT FDIC-INSURED | NOT BANK-GUARANTEED | MAY LOSE VALUE
Member FINRA/SIPC (3/13)

CONTACT: Analyst Inquiries William T. Korver 630.505.3700 william.korver@guggenheiminvestments.com Media Inquiries Jeaneen Pisarra 917.386.0387 jeaneen.pisarra@guggenheiminvestments.comSource: Guggenheim Investments Illinois