AVK Declares Monthly Dividend for March.

LISLE, Ill. -- Advent Claymore Convertible Securities and Income Fund (NYSE:AVK) today declared its monthly dividend of $0.1718 per share. This represents an annualized distribution rate of 7.62% based upon the closing market price of $27.04 on February 28, 2007.

Since the Fund's inception on April 30, 2003 through February 28, 2007 the Fund generated an average annual total return, including reinvestment of dividends, of 13.76% based on Net Asset Value (NAV) and 12.50 % based on market price. The Fund's one year total return, as of February 28, 2007 was 14.46 % based on NAV and 18.49 % based on market price.

The Fund's Investment Objective is to provide total return through a combination of capital appreciation and current income. The Fund pursues this Objective, under normal market conditions, by investing at least 60% of its Managed Assets in convertible and other income securities.

Dividends will be paid on March 30, 2007 to shareholders of record as of March 15, 2007. The ex-dividend date will be March 13, 2007. If it is determined that a notification is required pursuant to Section 19a-1 of the Investment Company Act of 1940, such notice will be posted to the Fund's website after the close of business three business days prior to the payable date.

Advent Capital Management, LLC serves as the Fund's Investment Adviser. Based in New York, New York, Advent is a credit-oriented firm specializing in the management of convertible, high-yield and equity securities and the implementation of covered call and hedge fund strategies. The firm manages assets for several FORTUNE 500 companies, foundations, endowments, public pension plans, insurance companies and another closed-end fund, the Advent/Claymore Enhanced Growth & Income Fund (NYSE: LCM).

Claymore Securities, Inc. is a privately-held financial services company offering unique investment solutions for financial advisors and their valued clients. Claymore entities have provided supervision, management, servicing or distribution on over $16 billion in assets through closed-end funds, unit investment trusts, mutual funds, separately managed accounts, exchange-traded funds and Claymore MACROshares. Additional information on Claymore's closed-end funds is available at www.claymore.com/CEFs. Registered investment products are sold by prospectus only and investors should read the prospectus carefully before investing.

This information does not represent an offer to sell securities of the Fund and it is not soliciting an offer to buy securities of the Fund. There can be no assurance that the Fund will achieve its investment objectives. The net asset value of the Fund 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 the Fund is subject to certain risks and other considerations. Such risks and considerations include, but are not limited to: Investment and Market Risk, Convertible and Synthetic Convertible Securities Risk, High-Yield Securities Risk, Foreign Securities Risks, Derivatives Risk, Interest Rate Risk, Leverage Risk, Anti-Takeover Provisions, Market Disruption Risk and Illiquidity Risk.

Investors should consider the investment objectives and policies, risk considerations, charges and expenses of the Fund carefully before they invest. For this and more information, please contact a securities representative or Claymore Securities, Inc., 2455 Corporate West Drive, Lisle, Illinois 60532, 800-345-7999.

The Fund's common shares do not represent a deposit or obligation of, and are not guaranteed or endorsed by, any bank or other insured depository institution, and are not federally insured by the Federal Deposit Insurance Corporation, the Federal Reserve Board or any other government agency.