# EDGAR Filing Document

**Accession Number:** 0000355437
**File Stem:** 0001410368-25-040431
**Filing Date:** 2025-12
**Character Count:** 6342
**Document Hash:** da2b7c16d2c8e2571e0cfd0900dfb238
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001410368-25-040431.hdr.sgml**: 20251222

**ACCESSION NUMBER**: 0001410368-25-040431

**CONFORMED SUBMISSION TYPE**: NPORT-P

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20251031

**FILED AS OF DATE**: 20251222

**DATE AS OF CHANGE**: 20251222

**PERIOD START**: 20251031

**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:** 251590326

**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

### INTERNATIONAL SMALL COMPANY PORTFOLIO (Series ID: S000000967)

| Class ID   | Class Name                                                  | Ticker Symbol   |
|:---|:---|:---|
| C000002718 | INTERNATIONAL SMALL COMPANY PORTFOLIO - INSTITUTIONAL CLASS | DFISX           |

## 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:** INTERNATIONAL SMALL COMPANY PORTFOLIO

- **b. EDGAR series identifier (if any):** S000000967

- **c. LEI of Series:** 5493001J4NVI3L3AP896

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

- **a. Date of fiscal year-end:** 2025-10-31

- **b. Date as of which information is reported:** 2025-10-31

**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:** $14017470459.37

**Total Liabilities:** $3687681.40

**Net Assets:** $14013782777.97

**Cash Not Reported:** $4770656.39

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000002718 | 4.71%                | 2.57%                | -0.84%               |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $0.00                    | $0.00                                      |
| Month 2  | $0.00                    | $0.00                                      |
| Month 3  | $0.00                    | $0.00                                      |

### 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   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| State Street Global Advisors | State Street Institutional U.S. Government Money Market Fund | CUSIP: 857492706<br>LEI: 549300BZ5TGIFZUZDZ37 | Long             | STIV             | RF                | US        | 135173364 | NS      | $135173363.81  | 0.96%             |  |  |  | No            | 1                  | On Loan: No      |
| Chicago Mercantile Exchange  | Future                                                       | CUSIP: 000000000<br>LEI: SNZ2OJLFK8MNNCLQOF39 | N/A              | DE               |  | US        |       382 | NC      | $3717731.04    | 0.03%             |  |  |  | No            | 1                  | On Loan: No      |
| Dimensional Fund Advisors    | THE CANADIAN SMALL COMPANY SERIES                            | CUSIP: 000000000<br>LEI: 54930006OMTUF18TBS36 | Long             | EC               | RF                | US        |  65590314 | NS      | $1892936451.70 | 13.51%            |  |  |  | No            | N/A                | On Loan: No      |
| Dimensional Fund Advisors    | THE CONTINENTAL SMALL COMPANY SERIES                         | CUSIP: 000000000<br>LEI: 549300TTGDINCXXSVF04 | Long             | EC               | RF                | US        |  34269409 | NS      | $5751777665.21 | 41.04%            |  |  |  | No            | N/A                | On Loan: No      |
| Dimensional Fund Advisors    | THE ASIA PACIFIC SMALL COMPANY SERIES                        | CUSIP: 000000000<br>LEI: 549300CBGM4U9R4DEL16 | Long             | EC               | RF                | US        |  21421812 | NS      | $1440188425.65 | 10.28%            |  |  |  | No            | N/A                | On Loan: No      |
| Dimensional Fund Advisors    | THE UNITED KINGDOM SMALL COMPANY SERIES                      | CUSIP: 000000000<br>LEI: 549300FCYEDRJO2L0O02 | Long             | EC               | RF                | US        |  16930142 | NS      | $1708251286.67 | 12.19%            |  |  |  | No            | N/A                | On Loan: No      |
| Dimensional Fund Advisors    | THE JAPANESE SMALL COMPANY SERIES                            | CUSIP: 000000000<br>LEI: 549300XCLYJKZX2XQ177 | Long             | EC               | RF                | US        | 108723596 | NS      | $3080139470.93 | 21.98%            |  |  |  | No            | N/A                | On Loan: No      |

### Signature

**Date Signed:** 2025-11-19

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

**Signature:** Randy Olson

**Name of Signer:** Randy Olson

**Title:** Vice President