# EDGAR Filing Document

**Accession Number:** 0000355437
**File Stem:** 0001410368-26-065068
**Filing Date:** 2026-6
**Character Count:** 16274
**Document Hash:** d47e4f03d5509543b83a366ebd62f26d
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001410368-26-065068.hdr.sgml**: 20260624

**ACCESSION NUMBER**: 0001410368-26-065068

**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:** 261114441

**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:** 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:** $1807865860.36

**Total Liabilities:** $317018.32

**Net Assets:** $1807548842.04

**Currency Risk Metrics (dv01):**

- 

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

- **3-Month:** -2088.82000000 | **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:** -57.47000000 | **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%                | 0.26%                | 0.30%                |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $0.00                    | $-36069.34                                 |
| Month 2  | $-1518.00                | $-73856.32                                 |
| Month 3  | $79146.40                | $-242785.92                                |

### 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   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| United States Treasury       | U.S. Treasury Bills                                          | CUSIP: 912797TT4<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  54500000 | PA      | $54364317.89  | 3.01%             | 2026-05-26      | None          | 0.00%                 | No            |                  2 | On Loan: No      |
| United States Treasury       | U.S. Treasury Notes                                          | CUSIP: 91282CLL3<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        | 148800000 | PA      | $147852562.13 | 8.18%             | 2027-09-15      | Fixed         | 3.38%                 | No            |                  2 | On Loan: No      |
| FED HOME LN DISCOUNT NT      | Federal Home Loan Bank Discount Notes                        | CUSIP: 313385YK6<br>LEI: 2549001DPIFGXC1TOL40 | Long             | DBT              | USGSE             | US        |   7250000 | PA      | $7211575.00   | 0.40%             | 2026-06-22      | None          | 0.00%                 | No            |                  2 | On Loan: No      |
| United States Treasury       | U.S.Treasury Notes                                           | CUSIP: 91282CNQ0<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        | 143900000 | PA      | $144037369.82 | 7.97%             | 2027-07-31      | Floating      | 3.78%                 | No            |                  2 | On Loan: No      |
| United States Treasury       | U.S. Treasury Bills                                          | CUSIP: 912797UC9<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  37850000 | PA      | $37621046.86  | 2.08%             | 2026-06-30      | None          | 0.00%                 | No            |                  2 | On Loan: No      |
| FED HOME LN DISCOUNT NT      | Federal Home Loan Bank Discount Notes                        | CUSIP: 313385WL6<br>LEI: 2549001DPIFGXC1TOL40 | Long             | DBT              | USGSE             | US        |  10750000 | PA      | $10743567.95  | 0.59%             | 2026-05-06      | None          | 0.00%                 | No            |                  2 | On Loan: No      |
| FED HOME LN DISCOUNT NT      | Federal Home Loan Bank Discount Notes                        | CUSIP: 313385XQ4<br>LEI: 2549001DPIFGXC1TOL40 | Long             | DBT              | USGSE             | US        |  25000000 | PA      | $24915000.00  | 1.38%             | 2026-06-03      | None          | 0.00%                 | No            |                  2 | On Loan: No      |
| United States Treasury       | U.S. Treasury Bills                                          | CUSIP: 912797TL1<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  54000000 | PA      | $53978760.18  | 2.99%             | 2026-05-05      | None          | 0.00%                 | No            |                  2 | On Loan: No      |
| United States Treasury       | U.S. Treasury Notes                                          | CUSIP: 91282CMX6<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        | 165675000 | PA      | $165854898.20 | 9.18%             | 2027-04-30      | Floating      | 3.78%                 | No            |                  2 | On Loan: No      |
| United States Treasury       | U.S. Treasury Notes                                          | CUSIP: 91282CPB1<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  57500000 | PA      | $57214745.95  | 3.17%             | 2027-09-30      | Fixed         | 3.50%                 | No            |                  2 | On Loan: No      |
| FED HOME LN DISCOUNT NT      | Federal Home Loan Bank Discount Notes                        | CUSIP: 313385WN2<br>LEI: 2549001DPIFGXC1TOL40 | Long             | DBT              | USGSE             | US        |   5500000 | PA      | $5495612.21   | 0.30%             | 2026-05-08      | None          | 0.00%                 | No            |                  2 | On Loan: No      |
| United States Treasury       | U.S. Treasury Notes                                          | CUSIP: 91282CFU0<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  43000000 | PA      | $43151171.66  | 2.39%             | 2027-10-31      | Fixed         | 4.13%                 | No            |                  2 | On Loan: No      |
| United States Treasury       | U.S. Treasury Bills                                          | CUSIP: 912797QN0<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  95375000 | PA      | $95251615.27  | 5.27%             | 2026-05-14      | None          | 0.00%                 | No            |                  2 | On Loan: No      |
| United States Treasury       | U.S. Treasury Bills                                          | CUSIP: 912797TP2<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  10000000 | PA      | $9917057.60   | 0.55%             | 2026-07-23      | None          | 0.00%                 | No            |                  2 | On Loan: No      |
| FED FARM CRD DISCOUNT NT     | Federal Farm Credit Discount Notes                           | CUSIP: 313313XV5<br>LEI: 335800QFR6AM34FHIC10 | Long             | DBT              | USGSE             | US        |   5400000 | PA      | $5378940.00   | 0.30%             | 2026-06-08      | None          | 0.00%                 | No            |                  2 | On Loan: No      |
| United States Treasury       | U.S. Treasury Floating Rate Notes                            | CUSIP: 91282CPX3<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        | 163512700 | PA      | $163524484.36 | 9.05%             | 2028-01-31      | Floating      | 3.72%                 | No            |                  2 | On Loan: No      |
| United States Treasury       | U.S. Treasury Bills                                          | CUSIP: 912797UU9<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |   6300000 | PA      | $6231155.18   | 0.34%             | 2026-08-18      | None          | 0.00%                 | No            |                  2 | On Loan: No      |
| United States Treasury       | U.S. Treasury Notes                                          | CUSIP: 91282CAL5<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  81000000 | PA      | $77158827.72  | 4.27%             | 2027-09-30      | Fixed         | 0.38%                 | No            |                  2 | On Loan: No      |
| United States Treasury       | U.S. Treasury Bills                                          | CUSIP: 912797TU1<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |   9000000 | PA      | $8971239.96   | 0.50%             | 2026-06-02      | 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        |  16389101 | NS      | $16389101.06  | 0.91%             |  |  |  | No            |                  1 | On Loan: No      |
| FED HOME LN DISCOUNT NT      | Federal Home Loan Bank Discount Notes                        | CUSIP: 313385ZG4<br>LEI: 2549001DPIFGXC1TOL40 | Long             | DBT              | USGSE             | US        |  70000000 | PA      | $69482719.60  | 3.84%             | 2026-07-13      | None          | 0.00%                 | No            |                  2 | On Loan: No      |
| United States Treasury       | U.S. Treasury Notes                                          | CUSIP: 91282CFH9<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  25250000 | PA      | $25012294.99  | 1.38%             | 2027-08-31      | Fixed         | 3.13%                 | No            |                  2 | On Loan: No      |
| United States Treasury       | U.S. Treasury Bills                                          | CUSIP: 912797UN5<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  25000000 | PA      | $24832368.25  | 1.37%             | 2026-07-07      | None          | 0.00%                 | No            |                  2 | On Loan: No      |
| FED HOME LN DISCOUNT NT      | Federal Home Loan Bank Discount Notes                        | CUSIP: 313385XK7<br>LEI: 2549001DPIFGXC1TOL40 | Long             | DBT              | USGSE             | US        |  39590000 | PA      | $39475508.10  | 2.18%             | 2026-05-29      | None          | 0.00%                 | No            |                  2 | On Loan: No      |
| United States Treasury       | U.S. Treasury Notes                                          | CUSIP: 91282CLQ2<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        | 170000000 | PA      | $170000000.00 | 9.41%             | 2027-10-15      | Fixed         | 3.88%                 | No            |                  2 | On Loan: No      |
| United States Treasury       | U.S. Treasury Notes                                          | CUSIP: 91282CPG0<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        | 145000000 | PA      | $145223099.90 | 8.03%             | 2027-10-31      | Floating      | 3.81%                 | No            |                  2 | On Loan: No      |
| United States Treasury       | U.S. Treasury Bills                                          | CUSIP: 912797TS6<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  39000000 | PA      | $38929980.18  | 2.15%             | 2026-05-19      | None          | 0.00%                 | No            |                  2 | On Loan: No      |
| United States Treasury       | U.S. Treasury Notes                                          | CUSIP: 9128283F5<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  55000000 | PA      | $53670117.05  | 2.97%             | 2027-11-15      | Fixed         | 2.25%                 | No            |                  2 | On Loan: No      |
| United States Treasury       | U.S. Treasury Notes                                          | CUSIP: 91282CFZ9<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  89750000 | PA      | $89739482.20  | 4.96%             | 2027-11-30      | Fixed         | 3.88%                 | No            |                  2 | On Loan: No      |
| United States Treasury       | U.S. Treasury Bills                                          | CUSIP: 912797UA3<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |   1800000 | PA      | $1791724.61   | 0.10%             | 2026-06-16      | None          | 0.00%                 | No            |                  2 | On Loan: No      |
| United States Treasury       | U.S. Treasury Notes                                          | CUSIP: 91282CLT6<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  11000000 | PA      | $11008591.66  | 0.61%             | 2026-10-31      | Floating      | 3.83%                 | No            |                  2 | 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