# EDGAR Filing Document

**Accession Number:** 0000031266
**File Stem:** 0001752724-25-150466
**Filing Date:** 2025-6
**Character Count:** 5373
**Document Hash:** c1198072e80b4bfd7b86560e5d965a70
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001752724-25-150466.hdr.sgml**: 20250623

**ACCESSION NUMBER**: 0001752724-25-150466

**CONFORMED SUBMISSION TYPE**: NPORT-P

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20250430

**FILED AS OF DATE**: 20250623

**DATE AS OF CHANGE**: 20250623

**PERIOD START**: 20251031

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Eaton Vance Special Investment Trust
- **CENTRAL INDEX KEY:** 0000031266

**ORGANIZATION NAME:**
- **EIN:** 046039283

**FILING VALUES:**
- **FORM TYPE:** NPORT-P
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-01545
- **FILM NUMBER:** 251063236

**BUSINESS ADDRESS:**
- **STREET 1:** ONE POST OFFICE SQUARE
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02109
- **BUSINESS PHONE:** 6174828260

**MAIL ADDRESS:**
- **STREET 1:** ONE POST OFFICE SQUARE
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02109

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** EATON VANCE SPECIAL INVESTMENT TRUST
- **DATE OF NAME CHANGE:** 19930301

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** EATON VANCE SPECIAL EQUITIES FUND
- **DATE OF NAME CHANGE:** 19920703

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** EATON VANCE SPECIAL EQUITIES FUND INC
- **DATE OF NAME CHANGE:** 19890619

## Series and Classes Contracts Data

### Eaton Vance Short Duration Inflation-Protected Income Fund (Series ID: S000028366)

| Class ID   | Class Name                                                         | Ticker Symbol   |
|:---|:---|:---|
| C000086684 | Eaton Vance Short Duration Inflation-Protected Income Fund Class A | EARRX           |
| C000086685 | Eaton Vance Short Duration Inflation-Protected Income Fund Class C | ECRRX           |
| C000086686 | Eaton Vance Short Duration Inflation-Protected Income Fund Class I | EIRRX           |

## Form NPORT-P: Monthly Portfolio Investments Report

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

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

- **a. Name of Registrant:** Eaton Vance Special Investment Trust

- **b. Investment Company Act file number:** 811-01545

- **c. CIK number of Registrant:** 0000031266

- **d. LEI of Registrant:** 5493003X08Y3GH1CDY86

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

  - **Street Address 1:** One Post Office Square

  - **City:** BOSTON

  - **State:** MA

  - **Foreign country:** US

  - **Zip / Postal Code:** 02109

  - **Telephone number:** 617-482-8260

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

- **a. Name of Series:** Short Duration Inflation-Protected Income Fund

- **b. EDGAR series identifier (if any):** S000028366

- **c. LEI of Series:** IBHD9C1D7UVOUQU78532

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

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

- **b. Date as of which information is reported:** 2025-04-30

**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:** $496826945.53

**Total Liabilities:** $87544.34

**Net Assets:** $496739401.19

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000086685 | 0.91%                | 0.70%                | 0.50%                |
| Class ID C000086686 | 0.99%                | 0.73%                | 0.59%                |
| Class ID C000086684 | 0.89%                | 0.77%                | 0.59%                |

**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                                      |

**Designated Index Information**

- **Index Name:** Securities Portfolio

- **Index Identifier:** Securities Portfolio

### 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   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| Short Duration Inflation-Protected Income Portfolio | Short Duration Inflation-Protected Income Portfolio | CUSIP: 000000000<br>LEI: 549300UOMB5ER6NIQJ37 | Long             | EC               | RF                | US        |  93874508 | NS      | $398966657.04 | 80.32%            |  |  |  | No            | N/A                | On Loan: No      |
| Senior Debt Portfolio (MA)                          | Senior Debt Portfolio (MA)                          | CUSIP: 000000000<br>LEI: 5493009DZ4DLQ0NAB757 | Long             | EC               | RF                | US        |  13617226 | NS      | $97771683.02  | 19.68%            |  |  |  | No            | N/A                | On Loan: No      |

### Signature

**Date Signed:** 2025-05-21

**Name of Applicant:** Eaton Vance Special Investment Trust

**Signature:** James Kirchner

**Name of Signer:** James Kirchner

**Title:** Treasurer