AVK Announces the Availability of Its Most Recent Semiannual Shareholder Report.

LISLE, Ill. -- The Advent Claymore Convertible Securities and Income Fund (NYSE:AVK) announces the availability of its most recent semiannual shareholder report. The report has been filed with the Securities and Exchange Commission and is now posted on Claymore's website at http://www.adventclaymore.com. Printed copies are available by calling 800-345-7999.

The Fund's investment objective is to provide total return through a combination of capital appreciation and current income. The Fund pursues its objective, under normal market conditions, by investing at least 80% of its Managed Assets in convertible securities and non-convertible income securities.

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 across three lines of business - long-only strategies, hedge funds and closed-end mutual funds. The firm manages assets for several FORTUNE 500 companies, foundations, endowments, public pension plans, insurance companies and two other closed-end funds, the Advent/Claymore Enhanced Growth & Income Fund (NYSE:LCM) and Advent/Claymore Global Convertible Securities & Income Fund (NYSE:AGC).

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 approximately $17 billion, as of May 31, 2007, 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, Lower Grade Securities Risk (a.k.a. "Junk" Bond Risk), Leverage 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.

Member NASD/SIPC

06/07

NOT FDIC-INSURED / NOT BANK-GUARANTEED / MAY LOSE VALUE