<SEC-DOCUMENT>0001193125-25-166325-index.html : 20250728
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<ACCEPTANCE-DATETIME>20250728152456
ACCESSION NUMBER:		0001193125-25-166325
CONFORMED SUBMISSION TYPE:	485BPOS
PUBLIC DOCUMENT COUNT:		35
FILED AS OF DATE:		20250728
DATE AS OF CHANGE:		20250728
EFFECTIVENESS DATE:		20250729

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Datum One Series Trust
		CENTRAL INDEX KEY:			0001806095
		ORGANIZATION NAME:           	
		EIN:				000000000
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			0331

	FILING VALUES:
		FORM TYPE:		485BPOS
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-23556
		FILM NUMBER:		251155412

	BUSINESS ADDRESS:	
		STREET 1:		333 SOUTH WABASH AVE.
		STREET 2:		43RD FLOOR
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60604
		BUSINESS PHONE:		866-494-4270

	MAIL ADDRESS:	
		STREET 1:		50 S. LASALLE STREET
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60603

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Datum One Series Trust
		CENTRAL INDEX KEY:			0001806095
		ORGANIZATION NAME:           	
		EIN:				000000000
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			0331

	FILING VALUES:
		FORM TYPE:		485BPOS
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-237048
		FILM NUMBER:		251155411

	BUSINESS ADDRESS:	
		STREET 1:		333 SOUTH WABASH AVE.
		STREET 2:		43RD FLOOR
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60604
		BUSINESS PHONE:		866-494-4270

	MAIL ADDRESS:	
		STREET 1:		50 S. LASALLE STREET
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60603
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<SERIES>
<OWNER-CIK>0001806095
<SERIES-ID>S000089901
<SERIES-NAME>Stewart Investors Worldwide Leaders Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000256744
<CLASS-CONTRACT-NAME>Select Shares
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<SERIES>
<OWNER-CIK>0001806095
<SERIES-ID>S000089902
<SERIES-NAME>Stewart Investors Global Emerging Markets Leaders Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000256745
<CLASS-CONTRACT-NAME>Select Shares
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<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000263019
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