# EDGAR Filing Document

**Accession Number:** 0001928846
**File Stem:** 0001410368-25-042717
**Filing Date:** 2025-12
**Character Count:** 23291
**Document Hash:** e57f08bda4630a6c3942fc17294d8a17
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001410368-25-042717.hdr.sgml**: 20251229

**ACCESSION NUMBER**: 0001410368-25-042717

**CONFORMED SUBMISSION TYPE**: NPORT-P

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20251031

**FILED AS OF DATE**: 20251229

**DATE AS OF CHANGE**: 20251229

**PERIOD START**: 20251031

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Short Duration Inflation-Protected Income Portfolio
- **CENTRAL INDEX KEY:** 0001928846

**ORGANIZATION NAME:**
- **EIN:** 000000000

**FILING VALUES:**
- **FORM TYPE:** NPORT-P
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-23803
- **FILM NUMBER:** 251604151

**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 Short Duration Inflation-Protected Income Portfolio
- **DATE OF NAME CHANGE:** 20220513

## Series and Classes Contracts Data

### Short Duration Inflation-Protected Income Portfolio (Series ID: S000077078)

| Class ID   | Class Name                                          | Ticker Symbol   |
|:---|:---|:---|
| C000237224 | Short Duration Inflation-Protected Income Portfolio |  |

## Form NPORT-P: Monthly Portfolio Investments Report

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

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

- **a. Name of Registrant:** Short Duration Inflation-Protected Income Portfolio

- **b. Investment Company Act file number:** 811-23803

- **c. CIK number of Registrant:** 0001928846

- **d. LEI of Registrant:** 549300UOMB5ER6NIQJ37

- **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 Portfolio

- **b. EDGAR series identifier (if any):** S000077078

- **c. LEI of Series:** 549300UOMB5ER6NIQJ37

**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:** $439474021.75

**Total Liabilities:** $281077.91

**Net Assets:** $439192943.84

**Cash Not Reported:** $30413.09

**Currency Risk Metrics (dv01):**

- 

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

- **3-Month:** -76.00000000 | **1-Year:** -761.15000000 | **5-Year:** -139.16000000 | **10-Year:** -0.35000000 | **30-Year:** 0.00000000

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

- **3-Month:** -1.44000000 | **1-Year:** -132.80000000 | **5-Year:** -135.64000000 | **10-Year:** -43.00000000 | **30-Year:** 0.00000000

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000237224 | 1.41%                | -0.19%               | -0.11%               |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $0.00                    | $3638600.31                                |
| Month 2  | $-158699.87              | $-1172089.75                               |
| Month 3  | $229095.35               | $-1827261.48                               |

### 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   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| BX Trust                                | BX Commercial Mortgage Trust 2021-VOLT                                                                                             | CUSIP: 05609VAG0<br>LEI: N/A                  | Long             | ABS-MBS          | CORP              | US        |   4844141 | PA      | $4842317.30   | 1.10%             | 2036-09-15      | Floating      | 5.10%                 | No            |                  2 | On Loan: No      |
| COMM Mortgage Trust                     | COMM 2015-CCRE22 Mortgage Trust                                                                                                    | CUSIP: 12592XAG1<br>LEI: N/A                  | Long             | ABS-MBS          | CORP              | US        |   1000000 | PA      | $805649.00    | 0.18%             | 2048-03-10      | Variable      | 3.70%                 | No            |                  2 | On Loan: No      |
| COMM Mortgage Trust                     | COMM 2013-CCRE11 Mortgage Trust                                                                                                    | CUSIP: 12626LAY8<br>LEI: 549300BCCWSDWINK2593 | Long             | ABS-MBS          | CORP              | US        |    353053 | PA      | $343096.40    | 0.08%             | 2050-08-10      | Variable      | 4.47%                 | No            |                  2 | On Loan: No      |
| Coinstar Funding, LLC                   | Coinstar Funding LLC Series 2017-1                                                                                                 | CUSIP: 19260MAA4<br>LEI: N/A                  | Long             | ABS-O            | CORP              | US        |    704550 | PA      | $646353.82    | 0.15%             | 2047-04-25      | Fixed         | 5.22%                 | No            |                  2 | On Loan: No      |
| DBC 2025-DBC Mortgage Trust             | DBC 2025-DBC Mortgage Trust                                                                                                        | CUSIP: 23306HAA3<br>LEI: N/A                  | Long             | ABS-MBS          | CORP              | US        |    410000 | PA      | $412050.21    | 0.09%             | 2038-06-15      | Floating      | 5.40%                 | No            |                  2 | On Loan: No      |
| DBC 2025-DBC Mortgage Trust             | DBC 2025-DBC Mortgage Trust                                                                                                        | CUSIP: 23306HAC9<br>LEI: N/A                  | Long             | ABS-MBS          | CORP              | US        |    620000 | PA      | $623101.05    | 0.14%             | 2038-06-15      | Floating      | 5.65%                 | No            |                  2 | On Loan: No      |
| JP Morgan Mortgage Trust                | JP Morgan Mortgage Trust 2023-HE2                                                                                                  | CUSIP: 46657FAA3<br>LEI: N/A                  | Long             | ABS-O            | CORP              | US        |    687085 | PA      | $690195.89    | 0.16%             | 2054-03-20      | Floating      | 5.88%                 | No            |                  2 | On Loan: No      |
| MVW 2020-1 LLC                          | MVW 2020-1 LLC                                                                                                                     | CUSIP: 55400EAA7<br>LEI: N/A                  | Long             | ABS-O            | CORP              | US        |     17517 | PA      | $17156.52     | 0.00%             | 2037-10-20      | Fixed         | 1.74%                 | No            |                  2 | On Loan: No      |
| Morgan Stanley & Co. LLC                | Morgan Stanley Institutional Liquidity Funds - Government Portfolio                                                                | CUSIP: 61747C707<br>LEI: 549300BI6Y5SI6BYPB26 | Long             | STIV             | RF                | US        |     34202 | NS      | $34202.07     | 0.01%             |  |  |  | No            |                  1 | On Loan: No      |
| Eaton Vance Ultra-Short Income ETF      | Eaton Vance Ultra-Short Income ETF                                                                                                 | CUSIP: 61774R700<br>LEI: 254900V7QBF5XYWO0K24 | Long             | EC               | RF                | US        |    130000 | NS      | $6620900.00   | 1.51%             |  |  |  | No            |                  1 | On Loan: No      |
| Eaton Vance Short Duration Income ETF   | Eaton Vance Short Duration Income ETF                                                                                              | CUSIP: 61774R825<br>LEI: 254900H1WCGW58VEGZ62 | Long             | EC               | RF                | US        |    413000 | NS      | $21217875.00  | 4.83%             |  |  |  | No            |                  1 | On Loan: No      |
| Eaton Vance Total Return Bond ETF       | Eaton Vance Total Return Bond ETF                                                                                                  | CUSIP: 61774R841<br>LEI: 254900IQ3M4DXR8SC125 | Long             | EC               | RF                | US        |     96500 | NS      | $4974575.00   | 1.13%             |  |  |  | No            |                  1 | On Loan: No      |
| Saluda Grade Alternative Mortgage Trust | Saluda Grade Alternative Mortgage Trust 2025-LOC5                                                                                  | CUSIP: 79581XAB4<br>LEI: N/A                  | Long             | ABS-O            | CORP              | US        |    802255 | PA      | $806262.03    | 0.18%             | 2055-10-25      | Floating      | 5.59%                 | No            |                  2 | On Loan: No      |
| Springcastle SPV                        | SpringCastle America Funding LLC                                                                                                   | CUSIP: 85022WAP9<br>LEI: N/A                  | Long             | ABS-O            | CORP              | US        |    313440 | PA      | $297212.62    | 0.07%             | 2037-09-25      | Fixed         | 1.97%                 | No            |                  2 | On Loan: No      |
| United States Treasury                  | U.S. Treasury Inflation-Indexed Bonds                                                                                              | CUSIP: 912810FD5<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  20429376 | PA      | $21608766.33  | 4.92%             | 2028-04-15      | Fixed         | 3.62%                 | No            |                  2 | On Loan: No      |
| United States Treasury                  | U.S. Treasury Inflation-Indexed Bonds                                                                                              | CUSIP: 912810FH6<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  36455175 | PA      | $39642666.40  | 9.03%             | 2029-04-15      | Fixed         | 3.88%                 | No            |                  2 | On Loan: No      |
| United States Treasury                  | U.S. Treasury Inflation-Indexed Bonds                                                                                              | CUSIP: 912810PZ5<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  18105960 | PA      | $18832823.95  | 4.29%             | 2029-01-15      | Fixed         | 2.50%                 | No            |                  2 | On Loan: No      |
| United States Treasury                  | U.S. Treasury Inflation-Indexed Notes                                                                                              | CUSIP: 9128282L3<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  21983214 | PA      | $21775769.84  | 4.96%             | 2027-07-15      | Fixed         | 0.38%                 | No            |                  2 | On Loan: No      |
| United States Treasury                  | U.S. Treasury Inflation-Indexed Notes                                                                                              | CUSIP: 9128285W6<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  19500688 | PA      | $19291807.16  | 4.39%             | 2029-01-15      | Fixed         | 0.88%                 | No            |                  2 | On Loan: No      |
| United States Treasury                  | U.S. Treasury Inflation-Indexed Notes                                                                                              | CUSIP: 9128287D6<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  10638012 | PA      | $10296219.16  | 2.34%             | 2029-07-15      | Fixed         | 0.25%                 | No            |                  2 | On Loan: No      |
| United States Treasury                  | U.S. Treasury Inflation-Indexed Notes                                                                                              | CUSIP: 912828V49<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  15556296 | PA      | $15395802.78  | 3.51%             | 2027-01-15      | Fixed         | 0.38%                 | No            |                  2 | On Loan: No      |
| United States Treasury                  | U.S. Treasury Inflation-Indexed Notes                                                                                              | CUSIP: 912828Y38<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  15486480 | PA      | $15360757.19  | 3.50%             | 2028-07-15      | Fixed         | 0.75%                 | No            |                  2 | On Loan: No      |
| United States Treasury                  | U.S. Treasury Inflation-Indexed Notes                                                                                              | CUSIP: 912828Z37<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  14794425 | PA      | $14099894.95  | 3.21%             | 2030-01-15      | Fixed         | 0.12%                 | No            |                  2 | On Loan: No      |
| United States Treasury                  | U.S. Treasury Inflation-Indexed Notes                                                                                              | CUSIP: 912828ZZ6<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  37651704 | PA      | $35740517.44  | 8.14%             | 2030-07-15      | Fixed         | 0.12%                 | No            |                  2 | On Loan: No      |
| United States Treasury                  | U.S. Treasury Inflation-Indexed Notes                                                                                              | CUSIP: 91282CEJ6<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  22946800 | PA      | $22562601.96  | 5.14%             | 2027-04-15      | Fixed         | 0.12%                 | No            |                  2 | On Loan: No      |
| United States Treasury                  | U.S. Treasury Inflation-Indexed Notes                                                                                              | CUSIP: 91282CFR7<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  18700047 | PA      | $18931062.52  | 4.31%             | 2027-10-15      | Fixed         | 1.62%                 | No            |                  2 | On Loan: No      |
| United States Treasury                  | U.S. Treasury Inflation-Indexed Notes                                                                                              | CUSIP: 91282CGW5<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  23544000 | PA      | $23548300.78  | 5.36%             | 2028-04-15      | Fixed         | 1.25%                 | No            |                  2 | On Loan: No      |
| United States Treasury                  | U.S. Treasury Inflation-Indexed Notes                                                                                              | CUSIP: 91282CJH5<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  34372975 | PA      | $35640115.13  | 8.11%             | 2028-10-15      | Fixed         | 2.38%                 | No            |                  2 | On Loan: No      |
| United States Treasury                  | U.S. Treasury Inflation-Indexed Notes                                                                                              | CUSIP: 91282CKL4<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  23564925 | PA      | $24230094.97  | 5.52%             | 2029-04-15      | Fixed         | 2.12%                 | No            |                  2 | On Loan: No      |
| United States Treasury                  | U.S. Treasury Inflation-Indexed Notes                                                                                              | CUSIP: 91282CLV1<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  18016775 | PA      | $18318774.70  | 4.17%             | 2029-10-15      | Fixed         | 1.62%                 | No            |                  2 | On Loan: No      |
| United States Treasury                  | U.S. Treasury Inflation-Indexed Notes                                                                                              | CUSIP: 91282CNB3<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  14246960 | PA      | $14425228.65  | 3.28%             | 2030-04-15      | Fixed         | 1.62%                 | No            |                  2 | On Loan: No      |
| United States Treasury                  | U.S. Treasury Inflation-Indexed Notes                                                                                              | CUSIP: 91282CPH8<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |  22282930 | PA      | $22102934.73  | 5.03%             | 2030-10-15      | Fixed         | 1.12%                 | No            |                  2 | On Loan: No      |
| Vantage Data Centers LLC                | Vantage Data Centers LLC                                                                                                           | CUSIP: 92212KAC0<br>LEI: 5493000RL8X7WTQ7HO20 | Long             | ABS-O            | CORP              | US        |   1105000 | PA      | $1051039.76   | 0.24%             | 2045-09-15      | Fixed         | 1.99%                 | No            |                  2 | On Loan: No      |
| LCH Ltd.                                | Long: BEV4L52J9 IRS USD R V 12MUSCPI 1 CCPINFLATIONZERO / Short: BEV4L52J9 IRS USD P F  2.54500 2 CCPINFLATIONZERO                 | CUSIP: 000000000<br>LEI: F226TOH6YD6XJB17KS62 | N/A              | DIR              |  | US        |  10000000 | OU      | $1101027.00   | 0.25%             |  |  |  | No            |                  2 | On Loan: No      |
| LCH Ltd.                                | Long: BEV4Z2GN7 IRS USD R V 12MUSCPI 1 CCPINFLATIONZERO / Short: BEV4Z2GN7 IRS USD P F  3.23900 2 CCPINFLATIONZERO                 | CUSIP: 000000000<br>LEI: F226TOH6YD6XJB17KS62 | N/A              | DIR              |  | US        |  15000000 | OU      | $516163.50    | 0.12%             |  |  |  | No            |                  2 | On Loan: No      |
| LCH Ltd.                                | Long: BEV51CNB7 IRS USD R V 12MUSCPI 1 CCPINFLATIONZERO / Short: BEV51CNB7 IRS USD P F  2.99875 2 CCPINFLATIONZERO                 | CUSIP: 000000000<br>LEI: F226TOH6YD6XJB17KS62 | N/A              | DIR              |  | US        |  20000000 | OU      | $925732.00    | 0.21%             |  |  |  | No            |                  2 | On Loan: No      |
| LCH Ltd.                                | Long: BEV53C5Y5 IRS USD R V 12MUSCPI 1 CCPINFLATIONZERO / Short: BEV53C5Y5 IRS USD P F  2.82250 2 CCPINFLATIONZERO                 | CUSIP: 000000000<br>LEI: F226TOH6YD6XJB17KS62 | N/A              | DIR              |  | US        |  20000000 | OU      | $960102.00    | 0.22%             |  |  |  | No            |                  2 | On Loan: No      |
| LCH Ltd.                                | Long: BEV55L8D6 IRS USD R V 12MUSCPI 1 CCPINFLATIONZERO / Short: BEV55L8D6 IRS USD P F  3.60900 2 CCPINFLATIONZERO                 | CUSIP: 000000000<br>LEI: F226TOH6YD6XJB17KS62 | N/A              | DIR              |  | US        |  30000000 | OU      | $-45480.00    | -0.01%            |  |  |  | No            |                  2 | On Loan: No      |
| LCH Ltd.                                | Long: BMIEHCL38 IRS USD R V 12MUSCPI BMIEHCL53 CCPINFLATIONZERO / Short: BMIEHCL38 IRS USD P F  2.63850 BMIEHCL46 CCPINFLATIONZERO | CUSIP: 000000000<br>LEI: F226TOH6YD6XJB17KS62 | N/A              | DIR              |  | US        |  20000000 | OU      | $-38832.00    | -0.01%            |  |  |  | No            |                  2 | On Loan: No      |
| LCH Ltd.                                | Long: BMIETKTH8 IRS USD R V 12MUSCPI BMIETKTK1 CCPINFLATIONZERO / Short: BMIETKTH8 IRS USD P F  2.36458 BMIETKTJ4 CCPINFLATIONZERO | CUSIP: 000000000<br>LEI: F226TOH6YD6XJB17KS62 | N/A              | DIR              |  | US        |  15000000 | OU      | $106692.00    | 0.02%             |  |  |  | No            |                  2 | On Loan: No      |
| LCH Ltd.                                | Long: BMIETRFE5 IRS USD R V 12MUSCPI BMIETRFG0 CCPINFLATIONZERO / Short: BMIETRFE5 IRS USD P F  2.51000 BMIETRFF2 CCPINFLATIONZERO | CUSIP: 000000000<br>LEI: F226TOH6YD6XJB17KS62 | N/A              | DIR              |  | US        |  10000000 | OU      | $9002.00      | 0.00%             |  |  |  | No            |                  2 | On Loan: No      |
| LCH Ltd.                                | Long: BMIF24GE1 IRS USD R V 12MUSCPI BMIF24GG6 CCPINFLATIONZERO / Short: BMIF24GE1 IRS USD P F  2.63900 BMIF24GF8 CCPINFLATIONZERO | CUSIP: 000000000<br>LEI: F226TOH6YD6XJB17KS62 | N/A              | DIR              |  | US        |  15000000 | OU      | $9579.00      | 0.00%             |  |  |  | No            |                  2 | On Loan: No      |

### Signature

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

**Name of Applicant:** Short Duration Inflation-Protected Income Portfolio

**Signature:** James Kirchner

**Name of Signer:** James Kirchner

**Title:** Treasurer