NAPERVILLE, Ill., Sept. 22 /PRNewswire-FirstCall/ -- Calamos Investments has released monthly portfolio data for August including asset allocation, quality allocation, representative holdings, sector weightings and other fund characteristics for Calamos Convertible Opportunities and Income Fund , Calamos Convertible and High Income Fund , Calamos Strategic Total Return Fund , Calamos Global Total Return Fund and Calamos Global Dynamic Income Fund .

Portfolio data for each fund can be found on our website at: http://www.calamos.com/CHI http://www.calamos.com/CHY http://www.calamos.com/CSQ http://www.calamos.com/CGO http://www.calamos.com/CHW Printed copies can be obtained by calling 800.582.6959. About Calamos

Calamos Investments is a globally diversified investment firm offering equity, fixed-income, convertible and alternative investment strategies, among others. The firm serves institutions and individuals around the world via separately managed accounts and a family of open-end and closed-end funds, providing a risk-managed approach to capital appreciation and income- producing strategies. For more information, visit http://www.calamos.com/.

Calamos Investments

CONTACT: Scott Henderson, Associate Vice President of Calamos Advisors
LLC, +1-630-245-7223, shenderson@calamos.com

Web Site: http://www.calamos.com/