# EDGAR Filing Document

**Accession Number:** 0000355437
**File Stem:** 0001410368-25-040411
**Filing Date:** 2025-12
**Character Count:** 15114
**Document Hash:** 22cb4b6531f4ed224e8f5510df00f558
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001410368-25-040411.hdr.sgml**: 20251222

**ACCESSION NUMBER**: 0001410368-25-040411

**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:** 251590306

**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

### DFA SHORT-TERM GOVERNMENT PORTFOLIO (Series ID: S000000984)

| Class ID   | Class Name                                                | Ticker Symbol   |
|:---|:---|:---|
| C000002735 | DFA SHORT-TERM GOVERNMENT PORTFOLIO - INSTITUTIONAL CLASS | DFFGX           |

## 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:** DFA SHORT-TERM GOVERNMENT PORTFOLIO

- **b. EDGAR series identifier (if any):** S000000984

- **c. LEI of Series:** 549300CLRE9XU5HJFR81

**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:** $1758830793.78

**Total Liabilities:** $325967.94

**Net Assets:** $1758504825.84

**Currency Risk Metrics (dv01):**

- 

**Credit Spread Risk - Investment Grade (dv01):**

- **3-Month:** -5926.92000000 | **1-Year:** 0.00000000 | **5-Year:** 0.00000000 | **10-Year:** 0.00000000 | **30-Year:** 0.00000000

**Credit Spread Risk - Non-Investment Grade (dv01):**

- **3-Month:** 0.00000000 | **1-Year:** 0.00000000 | **5-Year:** 0.00000000 | **10-Year:** 0.00000000 | **30-Year:** 0.00000000

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000002735 | 0.30%                | 0.34%                | 0.40%                |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $0.00                    | $-330418.91                                |
| Month 2  | $0.00                    | $-178309.63                                |
| Month 3  | $0.00                    | $256669.06                                 |

### 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   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| FED HOME LN DISCOUNT NT      | Federal Home Loan Bank Discount Notes                        | CUSIP: 313385NU6<br>LEI: 2549001DPIFGXC1TOL40 | Long             | DBT              | USGSE             | US        |  44000000 | PA      | $43985846.52  | 2.50%             | 2025-11-03      | None          | 0.00%                 | No            |                  2 | On Loan: No      |
| FED HOME LN DISCOUNT NT      | Federal Home Loan Bank Discount Notes                        | CUSIP: 313385NW2<br>LEI: 2549001DPIFGXC1TOL40 | Long             | DBT              | USGSE             | US        |  52750000 | PA      | $52721720.20  | 3.00%             | 2025-11-05      | None          | 0.00%                 | No            |                  2 | On Loan: No      |
| FED HOME LN DISCOUNT NT      | Federal Home Loan Bank Discount Notes                        | CUSIP: 313385NX0<br>LEI: 2549001DPIFGXC1TOL40 | Long             | DBT              | USGSE             | US        |   8350000 | PA      | $8344628.19   | 0.47%             | 2025-11-06      | None          | 0.00%                 | No            |                  2 | On Loan: No      |
| FED HOME LN DISCOUNT NT      | Federal Home Loan Bank Discount Notes                        | CUSIP: 313385PD2<br>LEI: 2549001DPIFGXC1TOL40 | Long             | DBT              | USGSE             | US        |  24500000 | PA      | $24468476.59  | 1.39%             | 2025-11-12      | None          | 0.00%                 | No            |                  2 | On Loan: No      |
| FED HOME LN DISCOUNT NT      | Federal Home Loan Bank Discount Notes                        | CUSIP: 313385PF7<br>LEI: 2549001DPIFGXC1TOL40 | Long             | DBT              | USGSE             | US        |  88000000 | PA      | $87867902.32  | 5.00%             | 2025-11-14      | None          | 0.00%                 | No            |                  2 | On Loan: No      |
| FED HOME LN DISCOUNT NT      | Federal Home Loan Bank Discount Notes                        | CUSIP: 313385PL4<br>LEI: 2549001DPIFGXC1TOL40 | Long             | DBT              | USGSE             | US        |  66000000 | PA      | $65865543.48  | 3.75%             | 2025-11-19      | None          | 0.00%                 | No            |                  2 | On Loan: No      |
| FED HOME LN DISCOUNT NT      | Federal Home Loan Bank Discount Notes                        | CUSIP: 313385QC3<br>LEI: 2549001DPIFGXC1TOL40 | Long             | DBT              | USGSE             | US        |  51000000 | PA      | $50811583.56  | 2.89%             | 2025-12-05      | None          | 0.00%                 | No            |                  2 | On Loan: No      |
| FED HOME LN DISCOUNT NT      | Federal Home Loan Bank Discount Notes                        | CUSIP: 313385QG4<br>LEI: 2549001DPIFGXC1TOL40 | Long             | DBT              | USGSE             | US        |  90000000 | PA      | $89629499.70  | 5.10%             | 2025-12-09      | None          | 0.00%                 | No            |                  2 | On Loan: No      |
| FED HOME LN DISCOUNT NT      | Federal Home Loan Bank Discount Notes                        | CUSIP: 313385QQ2<br>LEI: 2549001DPIFGXC1TOL40 | Long             | DBT              | USGSE             | US        |  26500000 | PA      | $26368530.59  | 1.50%             | 2025-12-17      | None          | 0.00%                 | No            |                  2 | On Loan: No      |
| FED HOME LN DISCOUNT NT      | Federal Home Loan Bank Discount Notes                        | CUSIP: 313385RP3<br>LEI: 2549001DPIFGXC1TOL40 | Long             | DBT              | USGSE             | US        |  88100000 | PA      | $87447326.13  | 4.97%             | 2026-01-09      | None          | 0.00%                 | No            |                  2 | On Loan: No      |
| FED HOME LN DISCOUNT NT      | Federal Home Loan Bank Discount Notes                        | CUSIP: 313385SB3<br>LEI: 2549001DPIFGXC1TOL40 | Long             | DBT              | USGSE             | US        |  46500000 | PA      | $46096457.66  | 2.62%             | 2026-01-21      | None          | 0.00%                 | No            |                  2 | On Loan: No      |
| FED HOME LN DISCOUNT NT      | Federal Home Loan Bank Discount Notes                        | CUSIP: 313385SD9<br>LEI: 2549001DPIFGXC1TOL40 | Long             | DBT              | USGSE             | US        |  24000000 | PA      | $23786640.00  | 1.35%             | 2026-01-23      | None          | 0.00%                 | No            |                  2 | On Loan: No      |
| State Street Global Advisors | State Street Institutional U.S. Government Money Market Fund | CUSIP: 857492706<br>LEI: 549300BZ5TGIFZUZDZ37 | Long             | STIV             | RF                | US        | 163932124 | NS      | $163932123.60 | 9.32%             |  |  |  | No            |                  1 | On Loan: No      |
| United States Treasury       | U.S. Treasury Bills                                          | CUSIP: 912797NL7<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  75750000 | PA      | $75546727.15  | 4.30%             | 2025-11-28      | None          | 0.00%                 | No            |                  2 | On Loan: No      |
| United States Treasury       | U.S. Treasury Bills                                          | CUSIP: 912797PD3<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  57750000 | PA      | $57267787.50  | 3.26%             | 2026-01-22      | None          | 0.00%                 | No            |                  2 | On Loan: No      |
| United States Treasury       | U.S. Treasury Bills                                          | CUSIP: 912797QY6<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  52500000 | PA      | $52285088.63  | 2.97%             | 2025-12-11      | None          | 0.00%                 | No            |                  2 | On Loan: No      |
| United States Treasury       | U.S. Treasury Bills                                          | CUSIP: 912797RA7<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  44300000 | PA      | $44016609.36  | 2.50%             | 2026-01-02      | None          | 0.00%                 | No            |                  2 | On Loan: No      |
| United States Treasury       | U.S. Treasury Bills                                          | CUSIP: 912797RH2<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  54000000 | PA      | $53625532.68  | 3.05%             | 2026-01-08      | None          | 0.00%                 | No            |                  2 | On Loan: No      |
| United States Treasury       | U.S. Treasury Bills                                          | CUSIP: 912797RJ8<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |   4400000 | PA      | $4366386.42   | 0.25%             | 2026-01-15      | None          | 0.00%                 | No            |                  2 | On Loan: No      |
| United States Treasury       | U.S. Treasury Bills                                          | CUSIP: 912797RQ2<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  43750000 | PA      | $43646290.63  | 2.48%             | 2025-11-25      | None          | 0.00%                 | No            |                  2 | On Loan: No      |
| United States Treasury       | U.S. Treasury Bills                                          | CUSIP: 912797RR0<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  24450000 | PA      | $24373649.01  | 1.39%             | 2025-12-02      | None          | 0.00%                 | No            |                  2 | On Loan: No      |
| United States Treasury       | U.S. Treasury Bills                                          | CUSIP: 912797SJ7<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  93750000 | PA      | $92849813.44  | 5.28%             | 2026-02-03      | None          | 0.00%                 | No            |                  2 | On Loan: No      |
| United States Treasury       | U.S. Treasury Notes                                          | CUSIP: 91282CJU6<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        | 148700000 | PA      | $148721280.46 | 8.46%             | 2026-01-31      | Floating      | 4.01%                 | No            |                  2 | On Loan: No      |
| United States Treasury       | U.S. Treasury Notes                                          | CUSIP: 91282CKM2<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  27475000 | PA      | $27469668.20  | 1.56%             | 2026-04-30      | Floating      | 3.92%                 | No            |                  2 | On Loan: No      |
| United States Treasury       | U.S. Treasury Notes                                          | CUSIP: 91282CLA7<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  51675000 | PA      | $51675114.20  | 2.94%             | 2026-07-31      | Floating      | 3.95%                 | No            |                  2 | On Loan: No      |
| United States Treasury       | U.S. Treasury Notes                                          | CUSIP: 91282CLT6<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  11000000 | PA      | $11002178.66  | 0.63%             | 2026-10-31      | Floating      | 3.97%                 | No            |                  2 | On Loan: No      |
| United States Treasury       | U.S. Treasury Notes                                          | CUSIP: 91282CMX6<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        | 165675000 | PA      | $165627532.46 | 9.42%             | 2027-04-30      | Floating      | 3.93%                 | No            |                  2 | On Loan: No      |
| United States Treasury       | U.S.Treasury Notes                                           | CUSIP: 91282CNQ0<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        | 134900000 | PA      | $134872684.10 | 7.67%             | 2027-07-31      | Floating      | 3.92%                 | No            |                  2 | 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