U.S. CORE EQUITY 1 PORTFOLIO

S000000979DFA INVESTMENT DIMENSIONS GROUP INCCIK 0000355437

Share classes

1 class of this one portfolio · 0 exchange-listed

Class ID	Symbol	Status	Security in the master	Type
C000002730	DFEOX	NOT_LISTED	not exchange-listed	—

The share-class bridge is a snapshot, not history. The SEC's fund share-class file says what each class trades as today, not what it traded as at a past report date. A fund that changed ticker or converted from a mutual fund resolves to its present-day symbol for every historical month shown.

Share classes

Report period

4 periods filed. Holdings below describe the selected month only.

2026-04-30 2026-01-31A 2025-10-31A 2025-07-31A

Filing

NPORT-P/A · filed 2026-06-04

Report date: 2025-10-31
Net assets: $37,972,139,102.67
Total assets: $39,744,201,030.92
Total liabilities: $1,772,061,928.25
Assets invested: $0
Cash not reported in C or D: $9,226,520.61
Amendment: Yes
Accession: 0001410368-26-057023

By asset category

N-PORT Item C.4.a

ECEquity - common$38.47B96.8%

STIVShort-term investment veh…$1.24B3.1%

DEDerivative - equity$9.71M0.0%

By asset category

By issuer category

N-PORT Item C.4.b

CORPCorporate$37.64B94.8%

RFRegistered fund$2.07B5.2%

OTHEROther; the filer describe…$9.71M0.0%

USGSEUS government sponsored e…$2.96M0.0%

By issuer category

By investment country

as filed

USUS$38.27B96.6%

IEIE$676.05M1.7%

BMBM$181.86M0.5%

CHCH$122.01M0.3%

KYKY$64.86M0.2%

SGSG$53.56M0.1%

GBGB$50.18M0.1%

NLNL$48.11M0.1%

JEJE$47.22M0.1%

LRLR$43.27M0.1%

CWCW$33.59M0.1%

PRPR$32.89M0.1%

By country

Classification look-through

Positions resolved to the master through ISIN, then rolled up through the taxonomy. 92.0% of reported value reaches a classification.

Equity · Information Technology(323)$12.86B32.4%

Equity · Financials(468)$5.83B14.7%

Equity · Industrials(337)$3.89B9.8%

Equity · Consumer Discretionary(284)$3.88B9.8%

Equity · Health Care(263)$3.17B8.0%

Not resolved to the master(149)$2.91B7.3%

Equity · Consumer Staples(101)$1.78B4.5%

Equity · Communication Services(76)$1.69B4.3%

Equity · Energy(102)$1.23B3.1%

Equity · Materials(120)$1.01B2.5%

Equity · Utilities(67)$967.03M2.4%

Resolved, not yet classified(61)$277.21M0.7%

Equity(10)$114.22M0.3%

Equity · Real Estate(20)$108.50M0.3%

Alternative · Digital Asset(1)$421.6K0.0%

Classification covers part of the master. 5,771 of 13,106 active securities are classified. Anything unclassified is shown as its own band rather than dropped, so a look-through total that falls short of 100% is telling you about coverage, not about the fund.

Percentages are of the reported value of positions above ($39.73B), not of the fund’s net assets ($37.97B). The two differ by cash, derivatives filed with no market value, and rounding.

Classification look-through

Holdings

2,382 positions in this filing

Issuer nameAsset categoryIssuer category

Holdings

Issuer↕	In master	CUSIP / ISIN	Asset	Balance↕	Value↕	Weight▼	Country
FedEx Corp FedEx Corp.	FDX	31428X106 US31428X1063	EC CORP	207,996 NS	$52.79M	0.139%	US
Cummins Inc Cummins, Inc.	CMI	231021106 US2310211063	EC CORP	119,761 NS	$52.42M	0.138%	US
Hartford Insurance Group Inc/The Hartford Insurance Group, Inc.	HIG	416515104 US4165151048	EC CORP	420,335 NS	$52.20M	0.137%	US
Bristol-Myers Squibb Co Bristol-Myers Squibb Co.	BMY	110122108 US1101221083	EC CORP	1,128,661 NS	$52.00M	0.137%	US
Valero Energy Corp Valero Energy Corp.	VLO	91913Y100 US91913Y1001	EC CORP	305,122 NS	$51.74M	0.136%	US
Howmet Aerospace Inc Howmet Aerospace, Inc.	HWM	443201108 US4432011082	EC CORP	251,091 NS	$51.71M	0.136%	US
NRG Energy Inc NRG Energy, Inc.	NRG	629377508 US6293775085	EC CORP	299,437 NS	$51.46M	0.136%	US
GE Vernova Inc GE Vernova, Inc.	GEV	36828A101 US36828A1016	EC CORP	87,657 NS	$51.29M	0.135%	US
Illinois Tool Works Inc Illinois Tool Works, Inc.	ITW	452308109 US4523081093	EC CORP	209,372 NS	$51.07M	0.134%	US
Marsh & McLennan Cos Inc Marsh & McLennan Cos., Inc.	MRSH	571748102 US5717481023	EC CORP	286,589 NS	$51.06M	0.134%	US
Ciena Corp Ciena Corp.	CIEN	171779309 US1717793095	EC CORP	266,377 NS	$50.59M	0.133%	US
Bank of New York Mellon Corp/The Bank of New York Mellon Corp.	BNY	064058100 US0640581007	EC CORP	467,865 NS	$50.50M	0.133%	US
Southern Co/The Southern Co.	SO	842587107 US8425871071	EC CORP	534,107 NS	$50.23M	0.132%	US
Newmont Corp Newmont Corp.	NEM	651639106 US6516391066	EC CORP	619,239 NS	$50.14M	0.132%	US
McKesson Corp McKesson Corp.	MCK	58155Q103 US58155Q1031	EC CORP	60,603 NS	$49.17M	0.129%	US
Johnson Controls International plc Johnson Controls International PLC	JCI	000000000 IE00BY7QL619	EC CORP	429,175 NS	$49.09M	0.129%	IE
American International Group Inc American International Group, Inc.	AIG	026874784 US0268747849	EC CORP	621,612 NS	$49.08M	0.129%	US
Marathon Petroleum Corp Marathon Petroleum Corp.	MPC	56585A102 US56585A1025	EC CORP	249,562 NS	$48.64M	0.128%	US
Cigna Group/The Cigna Group	CI	125523100 US1255231003	EC CORP	195,864 NS	$47.87M	0.126%	US
Sherwin-Williams Co/The Sherwin-Williams Co.	SHW	824348106 US8243481061	EC CORP	137,923 NS	$47.58M	0.125%	US
Stryker Corp Stryker Corp.	SYK	863667101 US8636671013	EC CORP	132,755 NS	$47.29M	0.125%	US
Intel Corp Intel Corp.	INTC	458140100 US4581401001	EC CORP	1,176,953 NS	$47.07M	0.124%	US
Trane Technologies PLC	TT	000000000 IE00BK9ZQ967	EC CORP	104,204 NS	$46.75M	0.123%	IE
Jabil Inc Jabil, Inc.	JBL	466313103 US4663131039	EC CORP	211,292 NS	$46.67M	0.123%	US
Cencora Inc Cencora, Inc.	COR	03073E105 US03073E1055	EC CORP	137,889 NS	$46.58M	0.123%	US
Progressive Corp/The Progressive Corp.	PGR	743315103 US7433151039	EC CORP	222,181 NS	$45.77M	0.121%	US
Ross Stores Inc Ross Stores, Inc.	ROST	778296103 US7782961038	EC CORP	287,335 NS	$45.66M	0.120%	US
Norfolk Southern Corp Norfolk Southern Corp.	NSC	655844108 US6558441084	EC CORP	161,057 NS	$45.64M	0.120%	US
Starbucks Corp Starbucks Corp.	SBUX	855244109 US8552441094	EC CORP	564,034 NS	$45.61M	0.120%	US
Duke Energy Corp Duke Energy Corp.	DUK	26441C204 US26441C2044	EC CORP	366,250 NS	$45.52M	0.120%	US
General Dynamics Corp General Dynamics Corp.	GD	369550108 US3695501086	EC CORP	131,153 NS	$45.23M	0.119%	US
TE Connectivity PLC	TEL	000000000 IE000IVNQZ81	EC CORP	181,858 NS	$44.92M	0.118%	IE
Arista Networks Inc Arista Networks, Inc.	ANET	040413205 US0404132054	EC CORP	281,869 NS	$44.45M	0.117%	US
Steel Dynamics Inc Steel Dynamics, Inc.	STLD	858119100 US8581191009	EC CORP	282,821 NS	$44.35M	0.117%	US
Parker-Hannifin Corp Parker-Hannifin Corp.	PH	701094104 US7010941042	EC CORP	57,121 NS	$44.14M	0.116%	US
Allstate Corp/The Allstate Corp.	ALL	020002101 US0200021014	EC CORP	230,489 NS	$44.14M	0.116%	US
Altria Group Inc Altria Group, Inc.	MO	02209S103 US02209S1033	EC CORP	778,741 NS	$43.91M	0.116%	US
Royal Caribbean Cruises Ltd Royal Caribbean Cruises Ltd.	RCL	000000000 LR0008862868	EC CORP	150,851 NS	$43.27M	0.114%	LR
Prudential Financial Inc Prudential Financial, Inc.	PRU	744320102 US7443201022	EC CORP	412,506 NS	$42.90M	0.113%	US
Corning Inc Corning, Inc.	GLW	219350105 US2193501051	EC CORP	481,047 NS	$42.85M	0.113%	US
eBay Inc eBay, Inc.	EBAY	278642103 US2786421030	EC CORP	524,539 NS	$42.65M	0.112%	US
Hilton Worldwide Holdings Inc Hilton Worldwide Holdings, Inc.	HLT	43300A203 US43300A2033	EC CORP	165,906 NS	$42.63M	0.112%	US
Elevance Health Inc Elevance Health, Inc.	ELV	036752103 US0367521038	EC CORP	134,124 NS	$42.54M	0.112%	US
Quanta Services Inc Quanta Services, Inc.	PWR	74762E102 US74762E1029	EC CORP	94,162 NS	$42.29M	0.111%	US
Marriott International Inc/MD Marriott International, Inc.	MAR	571903202 US5719032022	EC CORP	162,246 NS	$42.28M	0.111%	US
Analog Devices Inc Analog Devices, Inc.	ADI	032654105 US0326541051	EC CORP	179,571 NS	$42.04M	0.111%	US
NIKE Inc NIKE, Inc.	NKE	654106103 US6541061031	EC CORP	650,568 NS	$42.02M	0.111%	US
WW Grainger Inc WW Grainger, Inc.	GWW	384802104 US3848021040	EC CORP	42,192 NS	$41.31M	0.109%	US
Phillips 66	PSX	718546104 US7185461040	EC CORP	302,439 NS	$41.17M	0.108%	US
Ameriprise Financial Inc Ameriprise Financial, Inc.	AMP	03076C106 US03076C1062	EC CORP	90,792 NS	$41.11M	0.108%	US

Issuer↕

In master

CUSIP / ISIN

Asset

Balance↕

Value↕

Weight▼

Country

FedEx Corp

FedEx Corp.

FDX

31428X106

US31428X1063

CORP

207,996 NS

$52.79M

0.139%

Cummins Inc

Cummins, Inc.

CMI

231021106

US2310211063

CORP

119,761 NS

$52.42M

0.138%

Hartford Insurance Group Inc/The

Hartford Insurance Group, Inc.

HIG

416515104

US4165151048

CORP

420,335 NS

$52.20M

0.137%

Bristol-Myers Squibb Co

Bristol-Myers Squibb Co.

BMY

110122108

US1101221083

CORP

1,128,661 NS

$52.00M

0.137%

Valero Energy Corp

Valero Energy Corp.

VLO

91913Y100

US91913Y1001

CORP

305,122 NS

$51.74M

0.136%

Howmet Aerospace Inc

Howmet Aerospace, Inc.

HWM

443201108

US4432011082

CORP

251,091 NS

$51.71M

0.136%

NRG Energy Inc

NRG Energy, Inc.

NRG

629377508

US6293775085

CORP

299,437 NS

$51.46M

0.136%

GE Vernova Inc

GE Vernova, Inc.

GEV

36828A101

US36828A1016

CORP

87,657 NS

$51.29M

0.135%

Illinois Tool Works Inc

Illinois Tool Works, Inc.

ITW

452308109

US4523081093

CORP

209,372 NS

$51.07M

0.134%

Marsh & McLennan Cos Inc

Marsh & McLennan Cos., Inc.

MRSH

571748102

US5717481023

CORP

286,589 NS

$51.06M

0.134%

Ciena Corp

Ciena Corp.

CIEN

171779309

US1717793095

CORP

266,377 NS

$50.59M

0.133%

Bank of New York Mellon Corp/The

Bank of New York Mellon Corp.

BNY

064058100

US0640581007

CORP

467,865 NS

$50.50M

0.133%

Southern Co/The

Southern Co.

842587107

US8425871071

CORP

534,107 NS

$50.23M

0.132%

Newmont Corp

Newmont Corp.

NEM

651639106

US6516391066

CORP

619,239 NS

$50.14M

0.132%

McKesson Corp

McKesson Corp.

MCK

58155Q103

US58155Q1031

CORP

60,603 NS

$49.17M

0.129%

Johnson Controls International plc

Johnson Controls International PLC

JCI

000000000

IE00BY7QL619

CORP

429,175 NS

$49.09M

0.129%

American International Group Inc

American International Group, Inc.

AIG

026874784

US0268747849

CORP

621,612 NS

$49.08M

0.129%

Marathon Petroleum Corp

Marathon Petroleum Corp.

MPC

56585A102

US56585A1025

CORP

249,562 NS

$48.64M

0.128%

Cigna Group/The

Cigna Group

125523100

US1255231003

CORP

195,864 NS

$47.87M

0.126%

Sherwin-Williams Co/The

Sherwin-Williams Co.

SHW

824348106

US8243481061

CORP

137,923 NS

$47.58M

0.125%

Stryker Corp

Stryker Corp.

SYK

863667101

US8636671013

CORP

132,755 NS

$47.29M

0.125%

Intel Corp

Intel Corp.

INTC

458140100

US4581401001

CORP

1,176,953 NS

$47.07M

0.124%

Trane Technologies PLC

000000000

IE00BK9ZQ967

CORP

104,204 NS

$46.75M

0.123%

Jabil Inc

Jabil, Inc.

JBL

466313103

US4663131039

CORP

211,292 NS

$46.67M

0.123%

Cencora Inc

Cencora, Inc.

COR

03073E105

US03073E1055

CORP

137,889 NS

$46.58M

0.123%

Progressive Corp/The

Progressive Corp.

PGR

743315103

US7433151039

CORP

222,181 NS

$45.77M

0.121%

Ross Stores Inc

Ross Stores, Inc.

ROST

778296103

US7782961038

CORP

287,335 NS

$45.66M

0.120%

Norfolk Southern Corp

Norfolk Southern Corp.

NSC

655844108

US6558441084

CORP

161,057 NS

$45.64M

0.120%

Starbucks Corp

Starbucks Corp.

SBUX

855244109

US8552441094

CORP

564,034 NS

$45.61M

0.120%

Duke Energy Corp

Duke Energy Corp.

DUK

26441C204

US26441C2044

CORP

366,250 NS

$45.52M

0.120%

General Dynamics Corp

General Dynamics Corp.

369550108

US3695501086

CORP

131,153 NS

$45.23M

0.119%

TE Connectivity PLC

TEL

000000000

IE000IVNQZ81

CORP

181,858 NS

$44.92M

0.118%

Arista Networks Inc

Arista Networks, Inc.

ANET

040413205

US0404132054

CORP

281,869 NS

$44.45M

0.117%

Steel Dynamics Inc

Steel Dynamics, Inc.

STLD

858119100

US8581191009

CORP

282,821 NS

$44.35M

0.117%

Parker-Hannifin Corp

Parker-Hannifin Corp.

701094104

US7010941042

CORP

57,121 NS

$44.14M

0.116%

Allstate Corp/The

Allstate Corp.

ALL

020002101

US0200021014

CORP

230,489 NS

$44.14M

0.116%

Altria Group Inc

Altria Group, Inc.

02209S103

US02209S1033

CORP

778,741 NS

$43.91M

0.116%

Royal Caribbean Cruises Ltd

Royal Caribbean Cruises Ltd.

RCL

000000000

LR0008862868

CORP

150,851 NS

$43.27M

0.114%

Prudential Financial Inc

Prudential Financial, Inc.

PRU

744320102

US7443201022

CORP

412,506 NS

$42.90M

0.113%

Corning Inc

Corning, Inc.

GLW

219350105

US2193501051

CORP

481,047 NS

$42.85M

0.113%

eBay Inc

eBay, Inc.

EBAY

278642103

US2786421030

CORP

524,539 NS

$42.65M

0.112%

Hilton Worldwide Holdings Inc

Hilton Worldwide Holdings, Inc.

HLT

43300A203

US43300A2033

CORP

165,906 NS

$42.63M

0.112%

Elevance Health Inc

Elevance Health, Inc.

ELV

036752103

US0367521038

CORP

134,124 NS

$42.54M

0.112%

Quanta Services Inc

Quanta Services, Inc.

PWR

74762E102

US74762E1029

CORP

94,162 NS

$42.29M

0.111%

Marriott International Inc/MD

Marriott International, Inc.

MAR

571903202

US5719032022

CORP

162,246 NS

$42.28M

0.111%

Analog Devices Inc

Analog Devices, Inc.

ADI

032654105

US0326541051

CORP

179,571 NS

$42.04M

0.111%

NIKE Inc

NIKE, Inc.

NKE

654106103

US6541061031

CORP

650,568 NS

$42.02M

0.111%

WW Grainger Inc

WW Grainger, Inc.

GWW

384802104

US3848021040

CORP

42,192 NS

$41.31M

0.109%

Phillips 66

PSX

718546104

US7185461040

CORP

302,439 NS

$41.17M

0.108%

Ameriprise Financial Inc

Ameriprise Financial, Inc.

AMP

03076C106

US03076C1062

CORP

90,792 NS

$41.11M

0.108%