<SEC-DOCUMENT>0001387131-17-006029-index.html : 20171228 <SEC-HEADER>0001387131-17-006029.hdr.sgml : 20171228 <ACCEPTANCE-DATETIME>20171228170942 ACCESSION NUMBER: 0001387131-17-006029 CONFORMED SUBMISSION TYPE: N-CSR PUBLIC DOCUMENT COUNT: 14 CONFORMED PERIOD OF REPORT: 20171031 FILED AS OF DATE: 20171228 DATE AS OF CHANGE: 20171228 EFFECTIVENESS DATE: 20171228 FILER: COMPANY DATA: COMPANY CONFORMED NAME: CALAMOS GLOBAL TOTAL RETURN FUND CENTRAL INDEX KEY: 0001285650 IRS NUMBER: 203377281 FISCAL YEAR END: 1031 FILING VALUES: FORM TYPE: N-CSR SEC ACT: 1940 Act SEC FILE NUMBER: 811-21547 FILM NUMBER: 171278954 BUSINESS ADDRESS: STREET 1: 2020 CALAMOS COURT STREET 2: C/O CALAMOS ADVISORS LLC CITY: NAPERVILLE STATE: IL ZIP: 60563 BUSINESS PHONE: 6302451046 MAIL ADDRESS: STREET 1: 2020 CALAMOS COURT STREET 2: C/O CALAMOS ADVISORS LLC CITY: NAPERVILLE STATE: IL ZIP: 60563 </SEC-HEADER> <DOCUMENT> <TYPE>N-CSR <SEQUENCE>1 <FILENAME>cgo-ncsr_103117.htm <DESCRIPTION>CERTIFIED ANNUAL SHAREHOLDER REPORT <TEXT> Document 1 - file: cgo-ncsr_103117.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.CODE ETH <SEQUENCE>2 <FILENAME>ex99-codeeth.htm <DESCRIPTION>CODE OF ETHICS <TEXT> Document 2 - file: ex99-codeeth.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.CERT <SEQUENCE>3 <FILENAME>ex99-cert.htm <DESCRIPTION>CERTIFICATIONS <TEXT> Document 3 - file: ex99-cert.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.906CERT <SEQUENCE>4 <FILENAME>ex99-906cert.htm <DESCRIPTION>SECTION 906 CERTIFICATIONS <TEXT> Document 4 - file: ex99-906cert.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.(A).(2).(III) <SEQUENCE>5 <FILENAME>ex99-a2iii.htm <DESCRIPTION>PROXY VOTING POLICIES AND PROCEDURES <TEXT> Document 5 - file: ex99-a2iii.htm
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>6 <FILENAME>cgoncsr103117001.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 6 - file: cgoncsr103117001.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>7 <FILENAME>cgoncsr103117002.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 7 - file: cgoncsr103117002.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>8 <FILENAME>cgoncsr103117003.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 8 - file: cgoncsr103117003.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>9 <FILENAME>cgoncsr103117004.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 9 - file: cgoncsr103117004.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>10 <FILENAME>cgoncsr103117005.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 10 - file: cgoncsr103117005.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>11 <FILENAME>cgoncsr103117006.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 11 - file: cgoncsr103117006.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>12 <FILENAME>cgoncsr103117007.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 12 - file: cgoncsr103117007.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>13 <FILENAME>cgoncsr103117008.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 13 - file: cgoncsr103117008.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>14 <FILENAME>cgoncsr103117009.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 14 - file: cgoncsr103117009.jpg
</DOCUMENT> </SEC-DOCUMENT>