<SEC-DOCUMENT>0001193125-18-315882.txt : 20181101
<SEC-HEADER>0001193125-18-315882.hdr.sgml : 20181101
<ACCEPTANCE-DATETIME>20181101164708
ACCESSION NUMBER:		0001193125-18-315882
CONFORMED SUBMISSION TYPE:	497
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20181101
DATE AS OF CHANGE:		20181101
EFFECTIVENESS DATE:		20181101

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:		497
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-224205
		FILM NUMBER:		181154473

	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>497
<SEQUENCE>1
<FILENAME>d625145d497.htm
<DESCRIPTION>CALAMOS GLOBAL TOTAL RETURN FUND
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<TITLE>CALAMOS GLOBAL TOTAL RETURN FUND</TITLE>
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 <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>CALAMOS<SUP STYLE="font-size:85%; vertical-align:top">&reg;</SUP> G<SMALL>LOBAL</SMALL>
T<SMALL>OTAL</SMALL> R<SMALL>ETURN</SMALL> F<SMALL>UND</SMALL> </B></P> <P STYLE="margin-top:0pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><B>(<SMALL>THE</SMALL> &#147;F<SMALL>UND</SMALL>&#148;) </B></P>
<P STYLE="margin-top:6pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">Supplement dated November&nbsp;1, 2018 to the </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center">Statement of Additional Information dated June&nbsp;29, 2018, as supplemented on June&nbsp;29, 2018 and July&nbsp;23, 2018 </P>
<P STYLE="margin-top:12pt; margin-bottom:0pt; text-indent:4%; font-size:10pt; font-family:Times New Roman">Effectively immediately, the second paragraph in the section titled &#147;Fund Accountant&#148; is replaced in its entirety with the following
paragraphs: </P> <P STYLE="margin-top:6pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">On October&nbsp;12, 2018, the Board of Trustees approved terminating the financial accounting services agreement between the
Calamos Funds and Calamos effective November&nbsp;1, 2018. For the period November&nbsp;1, 2017 through October&nbsp;31, 2018, Calamos provided the following financial accounting services to the Calamos Funds: management of expenses and expense
payment processing; monitoring of the calculation of expense accrual amounts for any fund and making of any necessary modifications; coordination of any expense reimbursement calculations and payment; calculation of yields on the funds in accordance
with the SEC&#146;s rules and regulations; calculation of net investment income dividends and capital gains distributions; calculation, tracking and reporting of tax adjustments on all assets of each fund, including but not limited to contingent
debt and preferred trust obligations; preparation of excise tax and fiscal year distributions schedules; preparation of tax information required for financial statement footnotes; preparation of state and federal income tax returns; preparation of
specialized calculations of amortization on convertible securities; preparation of <FONT STYLE="white-space:nowrap">year-end</FONT> dividend disclosure information; monitoring of trustee deferred compensation plan accruals and valuations; and
preparation of Form 1099 information statements for board members and service providers. For such services, Calamos received a fee payable monthly at the annual rate of 0.0175% on the first $1&nbsp;billion of Combined Assets, 0.0150% on the next
$1&nbsp;billion, and 0.0110% on Combined Assets above $2&nbsp;billion (&#147;financial accounting service fee&#148;). Each fund of the Calamos Funds paid its <FONT STYLE="white-space:nowrap">pro-rata</FONT> share of the financial accounting service
fee payable to Calamos based on relative managed assets of each fund. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">Effective November&nbsp;1, 2018, the Fund entered into an agreement
with Ernst&nbsp;&amp; Young LLP (&#147;EY&#148;) located at 155 N. Wacker Drive, Chicago, IL 60606 to provide certain tax services to the Funds. The tax services include the following: calculating, tracking and reporting tax adjustments on all
assets of the Fund, including but not limited to contingent debt and preferred trust obligations; preparing excise tax and fiscal year distribution schedules; preparing tax information required for financial statement footnotes; preparing state and
federal income tax returns; preparing specialized calculations of amortization on convertible securities; preparing <FONT STYLE="white-space:nowrap">year-end</FONT> dividend disclosure information proving treaty-based foreign withholding tax reclaim
services; providing certain global compliance and reporting services; providing a match service and analysis of the &#147;passive foreign investment company status of foreign corporate entities; and providing services related to corporate actions
that may or may not have a tax impact on the Fund&#146;s holdings. </P> <P STYLE="margin-top:12pt; margin-bottom:0pt; margin-left:4%; font-size:10pt; font-family:Times New Roman">Effective November&nbsp;1, 2018, the Fund entered into an agreement
with State Street located at One Iron Street, Boston, MA 02111 pursuant to which State Street provides certain administration treasury services to the Fund. These services include: monitoring the calculation of expense accrual amounts for the Fund
and making any necessary modifications; managing the Fund&#146;s expenses and expense payment processing; coordinating any expense reimbursement calculations and payment; calculating net investment income dividends and capital gain distributions;
coordinating the audits for the Fund; preparing financial reporting statements for the Fund; preparing certain regulatory filings; and calculating asset coverage tests for certain Calamos Funds. </P>
<P STYLE="margin-top:24pt; margin-bottom:0pt; font-size:10pt; font-family:Times New Roman" ALIGN="center"><I>Please retain this supplement for future reference </I></P>
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