NAPERVILLE, Ill., Aug. 25 /PRNewswire-FirstCall/ -- Calamos Investments has released monthly portfolio data for July including asset allocation, quality allocation, representative holdings, sector weightings and other fund characteristics for Calamos Convertible Opportunities and Income Fund (NYSE: CHI), Calamos Convertible and High Income Fund (NYSE:CHY), Calamos Strategic Total Return Fund (NYSE:CSQ), Calamos Global Total Return Fund (NYSE:CGO) and Calamos Global Dynamic Income Fund (NYSE:CHW). Portfolio data for each fund can be found on our website at: http://www.calamos.com/CHIhttp://www.calamos.com/CHYhttp://www.calamos.com/CSQhttp://www.calamos.com/CGOhttp://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/. DATASOURCE: Calamos Investments CONTACT: Scott Henderson, Associate Vice President of Calamos Advisors LLC, +1-630-245-7223, Web Site: http://www.calamos.com/

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