# EDGAR Filing Document

**Accession Number:** 0000355437
**File Stem:** 0001410368-26-065047
**Filing Date:** 2026-6
**Character Count:** 4848
**Document Hash:** b73f7af91ea11af547a802648b81fd36
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001410368-26-065047.hdr.sgml**: 20260624

**ACCESSION NUMBER**: 0001410368-26-065047

**CONFORMED SUBMISSION TYPE**: NPORT-P

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20260430

**FILED AS OF DATE**: 20260624

**DATE AS OF CHANGE**: 20260624

**PERIOD START**: 20261031

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** DFA INVESTMENT DIMENSIONS GROUP INC
- **CENTRAL INDEX KEY:** 0000355437

**ORGANIZATION NAME:**
- **EIN:** 363129984
- **STATE OF INCORPORATION:** MD
- **FISCAL YEAR END:** 1031

**FILING VALUES:**
- **FORM TYPE:** NPORT-P
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-03258
- **FILM NUMBER:** 261114418

**BUSINESS ADDRESS:**
- **STREET 1:** 6300 BEE CAVE ROAD
- **STREET 2:** BUILDING ONE
- **CITY:** AUSTIN
- **STATE:** TX
- **ZIP:** 78746
- **BUSINESS PHONE:** (512) 306-7400

**MAIL ADDRESS:**
- **STREET 1:** 6300 BEE CAVE ROAD
- **STREET 2:** BUILDING ONE
- **CITY:** AUSTIN
- **STATE:** TX
- **ZIP:** 78746

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** DFA SMALL CO FUND INC
- **DATE OF NAME CHANGE:** 19830621

## Series and Classes Contracts Data

### World Core Equity Portfolio (Series ID: S000033391)

| Class ID   | Class Name          | Ticker Symbol   |
|:---|:---|:---|
| C000102631 | Institutional Class |  |

## Form NPORT-P: Monthly Portfolio Investments Report

### NPORT-P: Part A: General Information

**Item A.1. Information about the Registrant.**

- **a. Name of Registrant:** DFA INVESTMENT DIMENSIONS GROUP INC

- **b. Investment Company Act file number:** 811-03258

- **c. CIK number of Registrant:** 0000355437

- **d. LEI of Registrant:** 549300XGRTBJCE41BD26

- **e. Address and telephone number of Registrant.**

  - **Street Address 1:** 6300 BEE CAVE ROAD

  - **City:** AUSTIN

  - **State:** TX

  - **Foreign country:** US

  - **Zip / Postal Code:** 78746

  - **Telephone number:** 512-306-7400

**Item A.2. Information about the Series.**

- **a. Name of Series:** World Core Equity Portfolio

- **b. EDGAR series identifier (if any):** S000033391

- **c. LEI of Series:** 549300YCO5SX3V8LHY29

**Item A.3. Reporting period.**

- **a. Date of fiscal year-end:** 2026-10-31

- **b. Date as of which information is reported:** 2026-04-30

**Item A.4. Final filing**

Does the Fund anticipate that this will be its final filing on Form N-PORT? **No**

### Fund Information

**Total Assets:** $1287137793.10

**Total Liabilities:** $204838.24

**Net Assets:** $1286932954.86

**Cash Not Reported:** $56.94

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000102631 | 2.64%                | -6.18%               | 8.71%                |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $1282274.65              | $31655980.56                               |
| Month 2  | $7237244.27              | $-89494177.18                              |
| Month 3  | $536198.36               | $102659350.82                              |

### Schedule of Portfolio Investments

| Name                                     | Title                                    | Identifiers                                   | Payoff Profile   | Asset Category   | Issuer Category   | Country   |   Balance | Units   | Value (USD)   | % of Net Assets   | Maturity Date   | Coupon Type   | Annualized Rate (%)   | Restricted?   |   Fair Value Level | Lending Status   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| International Core Equity 2 Portfolio    | International Core Equity 2 Portfolio    | CUSIP: 233203371<br>LEI: 5493006PNAH8EX4MI695 | Long             | EC               | RF                | US        |  14997853 | NS      | $330402706.77 | 25.67%            |  |  |  | No            |                  1 | On Loan: No      |
| DFA US Core Equity 1 Portfolio           | U.S. Core Equity 1 Portfolio             | CUSIP: 233203413<br>LEI: 549300HFCYX77UDJN369 | Long             | EC               | RF                | US        |  14884430 | NS      | $791107468.53 | 61.47%            |  |  |  | No            |                  1 | On Loan: No      |
| Emerging Markets Core Equity 2 Portfolio | Emerging Markets Core Equity 2 Portfolio | CUSIP: 233203421<br>LEI: 549300JF8HO6EL9ROR31 | Long             | EC               | RF                | US        |   4946074 | NS      | $165594573.79 | 12.87%            |  |  |  | No            |                  1 | On Loan: No      |

### Signature

**Date Signed:** 2026-05-19

**Name of Applicant:** DFA INVESTMENT DIMENSIONS GROUP INC

**Signature:** Randy Olson

**Name of Signer:** Randy Olson

**Title:** Vice President