<SEC-DOCUMENT>0000912938-18-000565-index.html : 20180628
<SEC-HEADER>0000912938-18-000565.hdr.sgml : 20180628
<ACCEPTANCE-DATETIME>20180628093157
ACCESSION NUMBER:		0000912938-18-000565
CONFORMED SUBMISSION TYPE:	497K
PUBLIC DOCUMENT COUNT:		3
FILED AS OF DATE:		20180628
DATE AS OF CHANGE:		20180628
EFFECTIVENESS DATE:		20180628

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MFS SERIES TRUST XV
		CENTRAL INDEX KEY:			0000764719
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			1031

	FILING VALUES:
		FORM TYPE:		497K
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	002-96738
		FILM NUMBER:		18923697

	BUSINESS ADDRESS:	
		STREET 1:		111 HUNTINGTON AVENUE
		STREET 2:		24TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02199
		BUSINESS PHONE:		18006372929

	MAIL ADDRESS:	
		STREET 1:		111 HUNTINGTON AVENUE
		STREET 2:		24TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02199

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MFS GOVERNMENT LIMITED MATURITY FUND /MA/
		DATE OF NAME CHANGE:	19930623

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MFS GOVERNMENT PREMIUM FUND
		DATE OF NAME CHANGE:	19930408

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MFS GOVERNMENT PREMIUM ACCOUNT
		DATE OF NAME CHANGE:	19920703
<SERIES-AND-CLASSES-CONTRACTS-DATA>
<EXISTING-SERIES-AND-CLASSES-CONTRACTS>
<SERIES>
<OWNER-CIK>0000764719
<SERIES-ID>S000028958
<SERIES-NAME>MFS Commodity Strategy Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000088951
<CLASS-CONTRACT-NAME>A
<CLASS-CONTRACT-TICKER-SYMBOL>MCSAX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000088952
<CLASS-CONTRACT-NAME>B
<CLASS-CONTRACT-TICKER-SYMBOL>MCSFX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000088953
<CLASS-CONTRACT-NAME>C
<CLASS-CONTRACT-TICKER-SYMBOL>MCSHX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000088954
<CLASS-CONTRACT-NAME>I
<CLASS-CONTRACT-TICKER-SYMBOL>MCSIX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000088955
<CLASS-CONTRACT-NAME>R1
<CLASS-CONTRACT-TICKER-SYMBOL>MCSNX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000088956
<CLASS-CONTRACT-NAME>R2
<CLASS-CONTRACT-TICKER-SYMBOL>MCSOX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000088957
<CLASS-CONTRACT-NAME>R3
<CLASS-CONTRACT-TICKER-SYMBOL>MSCQX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000088958
<CLASS-CONTRACT-NAME>R4
<CLASS-CONTRACT-TICKER-SYMBOL>MCSTX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000119775
<CLASS-CONTRACT-NAME>R6
<CLASS-CONTRACT-TICKER-SYMBOL>MCSRX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000200516
<CLASS-CONTRACT-NAME>T
</CLASS-CONTRACT>
</SERIES>
</EXISTING-SERIES-AND-CLASSES-CONTRACTS>
</SERIES-AND-CLASSES-CONTRACTS-DATA>
</SEC-HEADER>
<DOCUMENT>
<TYPE>497K
<SEQUENCE>1
<FILENAME>cms_sum.htm
<TEXT>
Document 1 - file: cms_sum.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>image0.jpg
<TEXT>
Document 2 - file: image0.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>image00001.jpg
<TEXT>
Document 3 - file: image00001.jpg

</DOCUMENT>
</SEC-DOCUMENT>