0000950123-11-057001 Sample Contracts

CALAMOS CONVERTIBLE OPPORTUNITIES AND INCOME FUND UP TO 7,500,000 COMMON SHARES OF BENEFICIAL INTEREST CAPITAL ON DEMAND™ SALES AGREEMENT

Sales Agreement • June 6th, 2011 • Calamos Convertible Opportunities & Income Fund • New York

• Contract Type
  Sales Agreement
• Filed
  June 6th, 2011
• Company
  Calamos Convertible Opportunities & Income Fund
• Jurisdiction
  New York

CALAMOS CONVERTIBLE OPPORTUNITIES AND INCOME FUND, a Delaware statutory trust (the “Fund”), CALAMOS ADVISORS LLC, a Delaware limited liability company (the “Adviser”) confirm their agreement (this “Agreement”) with JonesTrading Institutional Services LLC (“Jones”), as follows: