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 2026-06-16

Report date: 2026-01-31
Net assets: $38,788,289,469.68
Total assets: $40,160,372,075.04
Total liabilities: $1,372,082,605.36
Assets invested: $0
Cash not reported in C or D: $28,678,791.57
Amendment: Yes
Accession: 0001410368-26-061798

By asset category

N-PORT Item C.4.a

ECEquity - common$38.98B97.2%

STIVShort-term investment veh…$1.13B2.8%

DEDerivative - equity$97.9K0.0%

By asset category

By issuer category

N-PORT Item C.4.b

CORPCorporate$38.29B95.5%

RFRegistered fund$1.82B4.5%

USGSEUS government sponsored e…$2.48M0.0%

OTHEROther; the filer describe…$111.8K0.0%

By issuer category

By investment country

as filed

USUS$38.59B96.4%

IEIE$706.14M1.8%

BMBM$192.02M0.5%

CHCH$128.28M0.3%

KYKY$65.44M0.2%

GBGB$57.37M0.1%

SGSG$51.74M0.1%

NLNL$50.06M0.1%

LRLR$49.64M0.1%

JEJE$48.27M0.1%

CWCW$38.91M0.1%

PRPR$34.16M0.1%

By country

Classification look-through

Positions resolved to the master through ISIN, then rolled up through the taxonomy. 92.8% of reported value reaches a classification.

Equity · Information Technology(332)$12.48B31.1%

Equity · Financials(480)$6.00B15.0%

Equity · Industrials(342)$4.11B10.3%

Equity · Consumer Discretionary(288)$3.99B9.9%

Equity · Health Care(283)$3.34B8.3%

Not resolved to the master(104)$2.64B6.6%

Equity · Consumer Staples(100)$1.86B4.6%

Equity · Communication Services(79)$1.74B4.3%

Equity · Energy(105)$1.35B3.4%

Equity · Materials(123)$1.15B2.9%

Equity · Utilities(67)$928.66M2.3%

Resolved, not yet classified(62)$270.42M0.7%

Equity(9)$134.84M0.3%

Equity · Real Estate(21)$118.36M0.3%

Alternative · Digital Asset(2)$2.04M0.0%

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 ($40.11B), not of the fund’s net assets ($38.79B). The two differ by cash, derivatives filed with no market value, and rounding.

Classification look-through

Holdings

2,397 positions in this filing

Issuer nameAsset categoryIssuer category

Holdings

Issuer↕	In master	CUSIP / ISIN	Asset	Balance↕	Value↕	Weight▲	Country
Coya Therapeutics Inc Coya Therapeutics, Inc.	COYA	22407B108 US22407B1089	EC CORP	1,715 NS	$8.0K	0.000%	US
CKX Lands Inc CKX Lands, Inc.	CKX	12562N104 US12562N1046	EC CORP	743 NS	$8.1K	0.000%	US
indie Semiconductor Inc indie Semiconductor, Inc.	INDI	45569U101 US45569U1016	EC CORP	2,000 NS	$8.2K	0.000%	US
Koss Corp Koss Corp.	KOSS	500692108 US5006921085	EC CORP	1,917 NS	$8.3K	0.000%	US
Clarus Corp Clarus Corp.	CLAR	18270P109 US18270P1093	EC CORP	2,357 NS	$9.0K	0.000%	US
Prelude Therapeutics Inc Prelude Therapeutics, Inc.	PRLD	74065P101 US74065P1012	EC CORP	4,982 NS	$9.2K	0.000%	US
Coffee Holding Co Inc Coffee Holding Co., Inc.	JVA	192176105 US1921761052	EC CORP	2,931 NS	$9.3K	0.000%	US
Nortech Systems Inc Nortech Systems, Inc.	NSYS	656553104 US6565531042	EC CORP	1,100 NS	$9.4K	0.000%	US
FitLife Brands Inc FitLife Brands, Inc.	FTLF	33817P405 US33817P4054	EC CORP	610 NS	$9.7K	0.000%	US
Creative Realities Inc Creative Realities, Inc.	CREX	22530J309 US22530J3095	EC CORP	3,174 NS	$9.9K	0.000%	US
Paysign Inc Paysign, Inc.	PAYS	70451A104 US70451A1043	EC CORP	2,408 NS	$10.0K	0.000%	US
Nephros Inc Nephros, Inc.	NEPH	640671400 US6406714005	EC CORP	2,333 NS	$10.1K	0.000%	US
Dine Brands Global Inc Dine Brands Global, Inc.	DIN	254423106 US2544231069	EC CORP	295 NS	$10.1K	0.000%	US
Shattuck Labs Inc Shattuck Labs, Inc.	STTK	82024L103 US82024L1035	EC CORP	2,713 NS	$10.5K	0.000%	US
Oramed Pharmaceuticals Inc Oramed Pharmaceuticals, Inc.	ORMP	68403P203 US68403P2039	EC CORP	3,131 NS	$10.6K	0.000%	US
Vince Holding Corp Vince Holding Corp.	VNCE	92719W207 US92719W2070	EC CORP	3,920 NS	$10.6K	0.000%	US
Air Industries Group	AIRI	00912N403 US00912N4034	EC CORP	3,217 NS	$10.6K	0.000%	US
Aytu BioPharma Inc Aytu BioPharma, Inc.	AYTU	054754858 US0547548588	EC CORP	4,100 NS	$10.7K	0.000%	US
Cricut Inc Cricut, Inc.	CRCT	22658D100 US22658D1000	EC CORP	2,400 NS	$10.7K	0.000%	US
WVS Financial Corp WVS Financial Corp.	—	929358109 US9293581099	EC CORP	803 NS	$10.8K	0.000%	US
Pioneer Power Solutions Inc Pioneer Power Solutions, Inc.	PPSI	723836300 US7238363003	EC CORP	2,539 NS	$10.8K	0.000%	US
JAKKS Pacific Inc JAKKS Pacific, Inc.	JAKK	47012E403 US47012E4035	EC CORP	597 NS	$10.9K	0.000%	US
Legacy Education Inc Legacy Education, Inc.	LGCY	52474R207 US52474R2076	EC CORP	1,094 NS	$11.0K	0.000%	US
Kezar Life Sciences Inc Kezar Life Sciences, Inc.	—	49372L209 US49372L2097	EC CORP	1,823 NS	$11.1K	0.000%	US
Hovnanian Enterprises Inc Hovnanian Enterprises, Inc.	HOV	442487401 US4424874018	EC CORP	99 NS	$11.2K	0.000%	US
NetSol Technologies Inc NetSol Technologies, Inc.	NTWK	64115A402 US64115A4022	EC CORP	3,138 NS	$11.2K	0.000%	US
comScore Inc comScore, Inc.	SCOR	20564W204 US20564W2044	EC CORP	1,325 NS	$11.2K	0.000%	US
NextCure Inc NextCure, Inc.	NXTC	65343E207 US65343E2072	EC CORP	1,047 NS	$11.4K	0.000%	US
Smith-Midland Corp Smith-Midland Corp.	SMID	832156103 US8321561032	EC CORP	324 NS	$11.4K	0.000%	US
SR Bancorp Inc SR Bancorp, Inc.	SRBK	85227J106 US85227J1060	EC CORP	691 NS	$11.5K	0.000%	US
MarketWise Inc MarketWise, Inc.	MKTW	57064P206 US57064P2065	EC CORP	706 NS	$11.7K	0.000%	US
T Stamp Inc T Stamp, Inc.	IDAI	873048508 US8730485088	EC CORP	3,420 NS	$11.8K	0.000%	US
CPI Aerostructures Inc CPI Aerostructures, Inc.	CVU	125919308 US1259193084	EC CORP	3,017 NS	$11.8K	0.000%	US
Backblaze Inc Backblaze, Inc.	BLZE	05637B105 US05637B1052	EC CORP	2,666 NS	$12.1K	0.000%	US
LGL Group Inc/The LGL Group, Inc.	LGL	50186A108 US50186A1088	EC CORP	1,687 NS	$12.2K	0.000%	US
CONTRA POSEIDA THERAPE Poseida Therapeutics, Inc.	—	737CVR019 —	DE OTHER	24,504 NS	$12.3K	0.000%	US
Sypris Solutions Inc Sypris Solutions, Inc.	SYPR	871655106 US8716551069	EC CORP	3,523 NS	$12.3K	0.000%	US
OptimizeRx Corp OptimizeRx Corp.	OPRX	68401U204 US68401U2042	EC CORP	1,149 NS	$12.4K	0.000%	US
PodcastOne Inc PodcastOne, Inc.	PODC	22275C105 US22275C1053	EC CORP	4,284 NS	$12.4K	0.000%	US
Intellicheck Inc Intellicheck, Inc.	IDN	45817G201 US45817G2012	EC CORP	2,198 NS	$12.5K	0.000%	US
Champions Oncology Inc Champions Oncology, Inc.	CSBR	15870P307 US15870P3073	EC CORP	1,709 NS	$12.5K	0.000%	US
Flexible Solutions International Inc Flexible Solutions International, Inc.	FSI	33938T104 CA33938T1049	EC CORP	2,175 NS	$12.5K	0.000%	CA
GLOBALFOUNDRIES Inc GLOBALFOUNDRIES, Inc.	GFS	000000000 KYG393871085	EC CORP	300 NS	$12.7K	0.000%	KY
HireQuest Inc HireQuest, Inc.	HQI	433535101 US4335351015	EC CORP	1,136 NS	$12.8K	0.000%	US
Hanover Bancorp Inc Hanover Bancorp, Inc.	HNVR	410709109 US4107091096	EC CORP	554 NS	$12.8K	0.000%	US
Accendra Health Inc Accendra Health, Inc.	ACH	690732102 US6907321029	EC CORP	5,950 NS	$13.1K	0.000%	US
Synchronoss Technologies Inc Synchronoss Technologies, Inc.	—	87157B400 US87157B4005	EC CORP	1,500 NS	$13.2K	0.000%	US
Envela Corp Envela Corp.	ELA	29402E102 US29402E1029	EC CORP	974 NS	$13.3K	0.000%	US
AC Immune SA	ACIU	000000000 CH0329023102	EC CORP	4,217 NS	$13.5K	0.000%	CH
Millrose Properties Inc Millrose Properties, Inc.	MRP	601137102 US6011371027	EC OTHER	467 NS	$13.9K	0.000%	US

Issuer↕

In master

CUSIP / ISIN

Asset

Balance↕

Value↕

Weight▲

Country

Coya Therapeutics Inc

Coya Therapeutics, Inc.

COYA

22407B108

US22407B1089

CORP

1,715 NS

$8.0K

0.000%

CKX Lands Inc

CKX Lands, Inc.

CKX

12562N104

US12562N1046

CORP

743 NS

$8.1K

0.000%

indie Semiconductor Inc

indie Semiconductor, Inc.

INDI

45569U101

US45569U1016

CORP

2,000 NS

$8.2K

0.000%

Koss Corp

Koss Corp.

KOSS

500692108

US5006921085

CORP

1,917 NS

$8.3K

0.000%

Clarus Corp

Clarus Corp.

CLAR

18270P109

US18270P1093

CORP

2,357 NS

$9.0K

0.000%

Prelude Therapeutics Inc

Prelude Therapeutics, Inc.

PRLD

74065P101

US74065P1012

CORP

4,982 NS

$9.2K

0.000%

Coffee Holding Co Inc

Coffee Holding Co., Inc.

JVA

192176105

US1921761052

CORP

2,931 NS

$9.3K

0.000%

Nortech Systems Inc

Nortech Systems, Inc.

NSYS

656553104

US6565531042

CORP

1,100 NS

$9.4K

0.000%

FitLife Brands Inc

FitLife Brands, Inc.

FTLF

33817P405

US33817P4054

CORP

610 NS

$9.7K

0.000%

Creative Realities Inc

Creative Realities, Inc.

CREX

22530J309

US22530J3095

CORP

3,174 NS

$9.9K

0.000%

Paysign Inc

Paysign, Inc.

PAYS

70451A104

US70451A1043

CORP

2,408 NS

$10.0K

0.000%

Nephros Inc

Nephros, Inc.

NEPH

640671400

US6406714005

CORP

2,333 NS

$10.1K

0.000%

Dine Brands Global Inc

Dine Brands Global, Inc.

DIN

254423106

US2544231069

CORP

295 NS

$10.1K

0.000%

Shattuck Labs Inc

Shattuck Labs, Inc.

STTK

82024L103

US82024L1035

CORP

2,713 NS

$10.5K

0.000%

Oramed Pharmaceuticals Inc

Oramed Pharmaceuticals, Inc.

ORMP

68403P203

US68403P2039

CORP

3,131 NS

$10.6K

0.000%

Vince Holding Corp

Vince Holding Corp.

VNCE

92719W207

US92719W2070

CORP

3,920 NS

$10.6K

0.000%

Air Industries Group

AIRI

00912N403

US00912N4034

CORP

3,217 NS

$10.6K

0.000%

Aytu BioPharma Inc

Aytu BioPharma, Inc.

AYTU

054754858

US0547548588

CORP

4,100 NS

$10.7K

0.000%

Cricut Inc

Cricut, Inc.

CRCT

22658D100

US22658D1000

CORP

2,400 NS

$10.7K

0.000%

WVS Financial Corp

WVS Financial Corp.

—

929358109

US9293581099

CORP

803 NS

$10.8K

0.000%

Pioneer Power Solutions Inc

Pioneer Power Solutions, Inc.

PPSI

723836300

US7238363003

CORP

2,539 NS

$10.8K

0.000%

JAKKS Pacific Inc

JAKKS Pacific, Inc.

JAKK

47012E403

US47012E4035

CORP

597 NS

$10.9K

0.000%

Legacy Education Inc

Legacy Education, Inc.

LGCY

52474R207

US52474R2076

CORP

1,094 NS

$11.0K

0.000%

Kezar Life Sciences Inc

Kezar Life Sciences, Inc.

—

49372L209

US49372L2097

CORP

1,823 NS

$11.1K

0.000%

Hovnanian Enterprises Inc

Hovnanian Enterprises, Inc.

HOV

442487401

US4424874018

CORP

99 NS

$11.2K

0.000%

NetSol Technologies Inc

NetSol Technologies, Inc.

NTWK

64115A402

US64115A4022

CORP

3,138 NS

$11.2K

0.000%

comScore Inc

comScore, Inc.

SCOR

20564W204

US20564W2044

CORP

1,325 NS

$11.2K

0.000%

NextCure Inc

NextCure, Inc.

NXTC

65343E207

US65343E2072

CORP

1,047 NS

$11.4K

0.000%

Smith-Midland Corp

Smith-Midland Corp.

SMID

832156103

US8321561032

CORP

324 NS

$11.4K

0.000%

SR Bancorp Inc

SR Bancorp, Inc.

SRBK

85227J106

US85227J1060

CORP

691 NS

$11.5K

0.000%

MarketWise Inc

MarketWise, Inc.

MKTW

57064P206

US57064P2065

CORP

706 NS

$11.7K

0.000%

T Stamp Inc

T Stamp, Inc.

IDAI

873048508

US8730485088

CORP

3,420 NS

$11.8K

0.000%

CPI Aerostructures Inc

CPI Aerostructures, Inc.

CVU

125919308

US1259193084

CORP

3,017 NS

$11.8K

0.000%

Backblaze Inc

Backblaze, Inc.

BLZE

05637B105

US05637B1052

CORP

2,666 NS

$12.1K

0.000%

LGL Group Inc/The

LGL Group, Inc.

LGL

50186A108

US50186A1088

CORP

1,687 NS

$12.2K

0.000%

CONTRA POSEIDA THERAPE

Poseida Therapeutics, Inc.

—

737CVR019

—

OTHER

24,504 NS

$12.3K

0.000%

Sypris Solutions Inc

Sypris Solutions, Inc.

SYPR

871655106

US8716551069

CORP

3,523 NS

$12.3K

0.000%

OptimizeRx Corp

OptimizeRx Corp.

OPRX

68401U204

US68401U2042

CORP

1,149 NS

$12.4K

0.000%

PodcastOne Inc

PodcastOne, Inc.

PODC

22275C105

US22275C1053

CORP

4,284 NS

$12.4K

0.000%

Intellicheck Inc

Intellicheck, Inc.

IDN

45817G201

US45817G2012

CORP

2,198 NS

$12.5K

0.000%

Champions Oncology Inc

Champions Oncology, Inc.

CSBR

15870P307

US15870P3073

CORP

1,709 NS

$12.5K

0.000%

Flexible Solutions International Inc

Flexible Solutions International, Inc.

FSI

33938T104

CA33938T1049

CORP

2,175 NS

$12.5K

0.000%

GLOBALFOUNDRIES Inc

GLOBALFOUNDRIES, Inc.

GFS

000000000

KYG393871085

CORP

300 NS

$12.7K

0.000%

HireQuest Inc

HireQuest, Inc.

HQI

433535101

US4335351015

CORP

1,136 NS

$12.8K

0.000%

Hanover Bancorp Inc

Hanover Bancorp, Inc.

HNVR

410709109

US4107091096

CORP

554 NS

$12.8K

0.000%

Accendra Health Inc

Accendra Health, Inc.

ACH

690732102

US6907321029

CORP

5,950 NS

$13.1K

0.000%

Synchronoss Technologies Inc

Synchronoss Technologies, Inc.

—

87157B400

US87157B4005

CORP

1,500 NS

$13.2K

0.000%

Envela Corp

Envela Corp.

ELA

29402E102

US29402E1029

CORP

974 NS

$13.3K

0.000%

AC Immune SA

ACIU

000000000

CH0329023102

CORP

4,217 NS

$13.5K

0.000%

Millrose Properties Inc

Millrose Properties, Inc.

MRP

601137102

US6011371027

OTHER

467 NS

$13.9K

0.000%