# EDGAR Filing Document

**Accession Number:** 0000356682
**File Stem:** 0001752724-23-049187
**Filing Date:** 2023-3
**Character Count:** 32539
**Document Hash:** ef8eaa3cb57bbdcd4c6291bc1f79e09e
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001752724-23-049187.hdr.sgml**: 20230301

**ACCESSION NUMBER**: 0001752724-23-049187

**CONFORMED SUBMISSION TYPE**: NPORT-P

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20221231

**FILED AS OF DATE**: 20230301

**DATE AS OF CHANGE**: 20230301

**PERIOD START**: 20230930

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** CALVERT SOCIAL INVESTMENT FUND
- **CENTRAL INDEX KEY:** 0000356682
- **IRS NUMBER:** 000000000
- **FISCAL YEAR END:** 0930

**FILING VALUES:**
- **FORM TYPE:** NPORT-P
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-03334
- **FILM NUMBER:** 23690897

**BUSINESS ADDRESS:**
- **STREET 1:** 1825 CONNECTICUT AVENUE NW
- **STREET 2:** SUITE 400
- **CITY:** WASHINGTON
- **STATE:** DC
- **ZIP:** 20009
- **BUSINESS PHONE:** 8002256265

**MAIL ADDRESS:**
- **STREET 1:** 1825 CONNECTICUT AVENUE NW
- **STREET 2:** SUITE 400
- **CITY:** WASHINGTON
- **STATE:** DC
- **ZIP:** 20009

## Series and Classes Contracts Data

### Calvert Growth Allocation Fund (Series ID: S000008723)

| Class ID   | Class Name                              | Ticker Symbol   |
|:---|:---|:---|
| C000023774 | Class A                                 | CAAAX           |
| C000023775 | Class C                                 | CAACX           |
| C000099328 | Class I                                 | CAGIX           |
| C000235280 | Calvert Growth Allcoation Fund Class R6 | CGARX           |

## Nport-Ex

Calvert

Growth Allocation Fund

December 31, 2022

Schedule of Investments (Unaudited)

------

Mutual Funds — 93.3%<sup>(1)</sup>

---

| | | |
|:---|:---|:---|
| **Security** | **Shares** | **Value** |
| Equity Funds — 88.5% | Equity Funds — 88.5% |  |
| Calvert Impact Fund, Inc.: |  |  |
| &nbsp;&nbsp;&nbsp;Calvert Small-Cap Fund, Class R6 | &nbsp;&nbsp;&nbsp;&nbsp;393698 | $11803056 |
| Calvert Responsible Index Series, Inc.: |  |  |
| &nbsp;&nbsp;&nbsp;Calvert International Responsible Index Fund, Class R6 | &nbsp;&nbsp;&nbsp;&nbsp;841112 | &nbsp;&nbsp; 20565184 |
| &nbsp;&nbsp;&nbsp;Calvert US Large-Cap Core Responsible Index Fund, Class R6 | 1192535 | &nbsp;&nbsp; 39449052 |
| &nbsp;&nbsp;&nbsp;Calvert US Large-Cap Growth Responsible Index Fund, Class R6 | &nbsp;&nbsp;&nbsp;&nbsp;425566 | &nbsp;&nbsp; 16899240 |
| &nbsp;&nbsp;&nbsp;Calvert US Large-Cap Value Responsible Index Fund, Class R6 | 1428395 | &nbsp;&nbsp; 39338012 |
| &nbsp;&nbsp;&nbsp;Calvert US Mid-Cap Core Responsible Index Fund, Class R6 | &nbsp;&nbsp;&nbsp;&nbsp;389129 | &nbsp;&nbsp; 12732305 |
| Calvert Social Investment Fund: |  |  |
| &nbsp;&nbsp;&nbsp;Calvert Equity Fund, Class R6 | &nbsp;&nbsp;&nbsp;&nbsp;215369 | &nbsp;&nbsp;&nbsp;&nbsp;16887088 |
| &nbsp;&nbsp;&nbsp;Calvert Focused Value Fund, Class R6 | &nbsp;&nbsp;&nbsp;&nbsp;991763 | &nbsp;&nbsp;&nbsp;&nbsp;9758944 |
| Calvert World Values Fund, Inc.: |  |  |
| &nbsp;&nbsp;&nbsp;Calvert Emerging Markets Advancement Fund, Class I | 1865375 | &nbsp;&nbsp;&nbsp;&nbsp;18224714 |
| &nbsp;&nbsp;&nbsp;Calvert Emerging Markets Equity Fund, Class R6 | &nbsp;&nbsp;&nbsp;&nbsp;952243 | &nbsp;&nbsp;&nbsp;&nbsp;14921648 |
| &nbsp;&nbsp;&nbsp;Calvert International Equity Fund, Class R6 | 1282520 | &nbsp;&nbsp;&nbsp;&nbsp;26637947 |
| &nbsp;&nbsp;&nbsp;Calvert International Opportunities Fund, Class R6 | 1455202 | &nbsp;&nbsp;&nbsp;&nbsp;22308247 |
| &nbsp;&nbsp;&nbsp;Calvert Mid-Cap Fund, Class I | &nbsp;&nbsp;&nbsp;&nbsp;149852 | &nbsp;&nbsp;&nbsp;&nbsp;5775285 |
|  |  | **$255300722** |
| Income Funds — 4.8% | Income Funds — 4.8% |  |
| Calvert Management Series: |  |  |
| &nbsp;&nbsp;&nbsp;Calvert Floating-Rate Advantage Fund, Class R6 | &nbsp;&nbsp;&nbsp;&nbsp;481381 | &nbsp;&nbsp;&nbsp;$4159132 |
| The Calvert Fund: |  |  |
| &nbsp;&nbsp;&nbsp;Calvert High Yield Bond Fund, Class R6 | &nbsp;&nbsp;&nbsp;&nbsp;424424 | &nbsp;&nbsp;&nbsp;&nbsp;9744782 |
|  |  | **$13903914** |
| Total Mutual Funds<br> (identified cost $263,812,601) |  | **$269204636** |

---

U.S. Treasury Obligations — 1.8%

---

| | | |
|:---|:---|:---|
| **Security** | **Principal<br> Amount<br> (000's omitted)** | **Value** |
| U.S. Treasury Inflation-Protected Bond: |  |  |
| &nbsp;&nbsp;&nbsp;0.25%, 2/15/50<sup>(2)(3)</sup> | $&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3593 | $2426338 |
| &nbsp;&nbsp;&nbsp;0.625%, 7/15/32<sup>(2)</sup> | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3143 | &nbsp;&nbsp;&nbsp;&nbsp;2881657 |
| Total U.S. Treasury Obligations<br> (identified cost $6,467,783) |  | **$5307995** |

---

Short-Term Investments — 4.8%

---

| | | |
|:---|:---|:---|
| **Security** | **Shares** | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**Value** |
| Morgan Stanley Institutional Liquidity Funds - Government Portfolio, Institutional Class, 4.11%<sup>(4)</sup> | 13835613 | $13835613 |
| Total Short-Term Investments<br> (identified cost $13,835,613) |  | **$13835613** |
| Total Investments — 99.9%<br> (identified cost $284,115,997) |  | **$288348244** |

---

---

| | |
|:---|:---|
| Other Assets, Less Liabilities — 0.1% | **$344949** |
| Net Assets — 100.0% | **$288693193** |

---

---

| | |
|:---|:---|
| The percentage shown for each investment category in the Schedule of Investments is based on net assets. | The percentage shown for each investment category in the Schedule of Investments is based on net assets. |
| <sup>(1)</sup> | Affiliated fund. |
| <sup>(2)</sup> | Inflation-linked security whose principal is adjusted for inflation based on changes in the U.S. Consumer Price Index. Interest is calculated based on the inflation-adjusted principal. |
| <sup>(3)</sup> | Security (or a portion thereof) has been pledged to cover margin requirements on open futures contracts. |
| <sup>(4)</sup> | May be deemed to be an affiliated investment company. The rate shown is the annualized seven-day yield as of December 31, 2022. |

---

------

Calvert

Growth Allocation Fund

December 31, 2022

Schedule of Investments (Unaudited) — continued

------

#### Futures Contracts

---

| | | | | | |
|:---|:---|:---|:---|:---|:---|
| **Description** | &nbsp;&nbsp;&nbsp;&nbsp;**Number of<br> Contracts** | &nbsp;&nbsp;&nbsp;&nbsp;**Position** | &nbsp;&nbsp;&nbsp;&nbsp;**Expiration<br> Date** | &nbsp;&nbsp;&nbsp;&nbsp;**Notional<br> Amount** | &nbsp;&nbsp;&nbsp;&nbsp;**Value/<br> Unrealized<br> Appreciation<br> (Depreciation)** |
| **Interest Rate Futures** |  |  |  |  |  |
| U.S. 5-Year Treasury Note | &nbsp;&nbsp;&nbsp;&nbsp;17 | &nbsp;&nbsp;&nbsp;&nbsp;Long | &nbsp;&nbsp;&nbsp;&nbsp;3/31/23 | &nbsp;&nbsp;&nbsp;&nbsp;$1834805 | &nbsp;&nbsp;&nbsp;&nbsp;$(2276) |
| U.S. 10-Year Treasury Note | &nbsp;&nbsp;&nbsp;&nbsp;36 | &nbsp;&nbsp;&nbsp;&nbsp;Long | &nbsp;&nbsp;&nbsp;&nbsp;3/22/23 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4042687 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(21976) |
| U.S. Long Treasury Bond | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;6 | &nbsp;&nbsp;&nbsp;&nbsp;Long | &nbsp;&nbsp;&nbsp;&nbsp;3/22/23 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;752063 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(6811) |
| U.S. Ultra 10-Year Treasury Note | &nbsp;&nbsp;&nbsp;&nbsp;(1) | &nbsp;&nbsp;&nbsp;&nbsp;Short | &nbsp;&nbsp;&nbsp;&nbsp;3/22/23 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(118281) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;820 |
| U.S. Ultra-Long Treasury Bond | &nbsp;&nbsp;&nbsp;&nbsp;(5) | &nbsp;&nbsp;&nbsp;&nbsp;Short | &nbsp;&nbsp;&nbsp;&nbsp;3/22/23 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(671563) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;7137 |
|  |  |  |  |  | &nbsp;&nbsp;&nbsp;&nbsp;**$(23106)** |

---

During the fiscal year to date ended December 31, 2022, the Fund used futures contracts to facilitate the periodic rebalancing of its portfolio to maintain its target asset allocation and to make tactical asset allocations.

At December 31, 2022, the Fund had sufficient cash and/or securities to cover commitments under open derivative contracts.

Affiliated Funds

At December 31, 2022, the value of the Fund's investment in affiliated funds, including funds that may be deemed to be affiliated, was $283,040,249, which represents 98.1% of the Fund's net assets. Transactions in such funds by the Fund for the fiscal year to date ended December 31, 2022 were as follows:

---

| | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **Name of<br> Calvert Fund** | **Value,<br> beginning<br> of period** | **Purchases** | **Sales<br> proceeds** | **Net<br> realized<br> gain<br> (loss)** | **Change in<br> unrealized<br> appreciation<br> (depreciation)** | **Value,<br> end of<br> period** | **Dividend<br> income** | **Capital gains<br> distributions<br> received** | **Shares,<br> end of period** |
| Emerging Markets Advancement Fund, Class I | $16991994 | $1397284 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;$— | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;$— | $(164564) | $18224714 | $951278 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;$— | &nbsp;&nbsp;&nbsp;1865375 |
| Emerging Markets Equity Fund, Class R6 | &nbsp;&nbsp;&nbsp;12789649 | &nbsp;&nbsp;&nbsp; 940440 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp; 1191559 | &nbsp;&nbsp;&nbsp; 14921648 | &nbsp;&nbsp;&nbsp; 132054 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;952243 |
| Equity Fund, Class R6 | &nbsp;&nbsp;&nbsp;14695851 | &nbsp;&nbsp;&nbsp; 1206444 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp; 984793 | &nbsp;&nbsp;&nbsp; 16887088 | &nbsp;&nbsp;&nbsp; 46209 | &nbsp;&nbsp;&nbsp;463350 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;215369 |
| Floating-Rate Advantage Fund, Class R6 | &nbsp;&nbsp;&nbsp; 4244335 | &nbsp;&nbsp;&nbsp; 85138 | &nbsp;&nbsp;&nbsp; (195128) | &nbsp;&nbsp;&nbsp;&nbsp; (23276) | &nbsp;&nbsp;&nbsp; 48063 | &nbsp;&nbsp;&nbsp; 4159132 | &nbsp;&nbsp;&nbsp; 85980 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;481381 |
| Focused Value Fund, Class R6 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp; 9778552 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;&nbsp; (19608) | &nbsp;&nbsp;&nbsp; 9758944 | &nbsp;&nbsp;&nbsp; 22165 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;991763 |
| High Yield Bond Fund, Class R6 | &nbsp;&nbsp;&nbsp; 9602819 | &nbsp;&nbsp;&nbsp; 131813 | &nbsp;&nbsp;&nbsp; (223003) | &nbsp;&nbsp;&nbsp;&nbsp; (28341) | &nbsp;&nbsp;&nbsp; 261494 | &nbsp;&nbsp;&nbsp; 9744782 | &nbsp;&nbsp;&nbsp; 133018 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;424424 |
| International Equity Fund, Class R6 | &nbsp;&nbsp;&nbsp;22270204 | &nbsp;&nbsp;&nbsp; 1368305 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp; 2999438 | &nbsp;&nbsp;&nbsp; 26637947 | &nbsp;&nbsp;&nbsp; 308645 | &nbsp;&nbsp;&nbsp;362775 | &nbsp;&nbsp;&nbsp;1282520 |
| International Opportunities Fund, Class R6 | &nbsp;&nbsp;&nbsp;18471177 | &nbsp;&nbsp;&nbsp; 897585 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp; 2939485 | &nbsp;&nbsp;&nbsp; 22308247 | &nbsp;&nbsp;&nbsp; 172826 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;1455202 |

---

------

Calvert

Growth Allocation Fund

December 31, 2022

Schedule of Investments (Unaudited) — continued

------

---

| | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **Name of<br> Calvert Fund** | **Value,<br> beginning<br> of period** | **Purchases** | **Sales<br> proceeds** | **Net<br> realized<br> gain<br> (loss)** | **Change in<br> unrealized<br> appreciation<br> (depreciation)** | **Value,<br> end of<br> period** | **Dividend<br> income** | **Capital gains<br> distributions<br> received** | **Shares,<br> end of period** |
| International Responsible Index Fund, Class R6 | $17038891 | &nbsp;&nbsp;$1131636 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;$— | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;$— | $2394657 | $20565184 | $406876 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;$— | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;841112 |
| Liquidity Fund, Institutional Class<sup>(1)</sup> | 20645053 | &nbsp;&nbsp;&nbsp;&nbsp;4819879 | &nbsp;&nbsp;&nbsp;(11629319) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp; 13835613 | &nbsp;&nbsp;&nbsp; 135788 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | 13835613 |
| Mid-Cap Fund, Class I | &nbsp;&nbsp;&nbsp;&nbsp;5072974 | &nbsp;&nbsp;&nbsp;&nbsp; 236041 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp; 466270 | &nbsp;&nbsp;&nbsp; 5775285 | &nbsp;&nbsp;&nbsp; 13038 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;149852 |
| Small-Cap Fund, Class R6 | 10878529 | &nbsp;&nbsp;&nbsp;&nbsp; 187413 | &nbsp;&nbsp;&nbsp; (139377) | &nbsp;&nbsp; (25509) | &nbsp;&nbsp;&nbsp; 902000 | &nbsp;&nbsp;&nbsp; 11803056 | &nbsp;&nbsp;&nbsp; 35414 | &nbsp;&nbsp;&nbsp;151999 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;393698 |
| US Large-Cap Core Responsible Index Fund, Class R6 | 35255100 | &nbsp;&nbsp;&nbsp;&nbsp;2281976 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp; 1911976 | &nbsp;&nbsp;&nbsp; 39449052 | &nbsp;&nbsp;&nbsp; 497951 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;1192535 |
| US Large-Cap Growth Responsible Index Fund, Class I | 15020196 | &nbsp;&nbsp;&nbsp;&nbsp;1310143 | &nbsp;&nbsp;&nbsp;(16412984) | &nbsp;&nbsp;&nbsp;&nbsp;5126915 | &nbsp;&nbsp;&nbsp;&nbsp;(5044270) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;— |
| US Large-Cap Growth Responsible Index Fund, Class R6 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;16525914 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp; 373326 | &nbsp;&nbsp;&nbsp; 16899240 | &nbsp;&nbsp;&nbsp; 112929 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;425566 |
| US Large-Cap Value Responsible Index Fund, Class I | 44611521 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;(49152631) | &nbsp;&nbsp;&nbsp;&nbsp;7682378 | &nbsp;&nbsp;&nbsp;&nbsp;(3141268) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;— |
| US Large-Cap Value Responsible Index Fund, Class R6 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;39325267 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp; 12745 | &nbsp;&nbsp;&nbsp; 39338012 | &nbsp;&nbsp;&nbsp; 848912 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;1428395 |
| US Mid-Cap Core Responsible Index Fund, Class I | 11462431 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;195128 | &nbsp;&nbsp;&nbsp;(12298594) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1481) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;642516 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;— |
| US Mid-Cap Core Responsible Index Fund, Class R6 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;12445162 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;287143 | &nbsp;&nbsp;&nbsp;&nbsp;12732305 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;146568 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;389129 |
| **Total** |  |  |  | **$12730686** | &nbsp;&nbsp;**$7045755** | **$283040249** | **$4049651** | **$978124** |  |

---

<sup>(1)</sup> Represents investment in Morgan Stanley Institutional Liquidity Funds - Government Portfolio.

------

Calvert

Growth Allocation Fund

December 31, 2022

Schedule of Investments (Unaudited) — continued

------

Fair Value Measurements

U.S. generally accepted accounting principles (U.S. GAAP) establishes a disclosure hierarchy that categorizes the inputs to valuation techniques used to value assets and liabilities at measurement date. These inputs are summarized in the three broad levels listed below:

Level 1 - quoted prices in active markets for identical securities

Level 2 - other significant observable inputs (including quoted prices for similar securities, interest rates, prepayment speeds, credit risk, etc.)

Level 3 - significant unobservable inputs (including the Fund's own assumptions in determining the fair value of investments)

The inputs or methodologies used for valuing securities are not necessarily an indication of the risk associated with investing in those securities.

The following table summarizes the market value of the Fund's holdings as of December 31, 2022, based on the inputs used to value them:

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Asset Description** | &nbsp;&nbsp;**Level 1** | &nbsp;&nbsp;**Level 2** | &nbsp;&nbsp;**Level 3** | &nbsp;&nbsp;**Total** |
| Mutual Funds | &nbsp;&nbsp;$269204636 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;$— | &nbsp;&nbsp;$— | &nbsp;&nbsp;$269204636 |
| U.S. Treasury Obligations | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;&nbsp;5307995 | &nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5307995 |
| Short-Term Investments | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;13835613 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;&nbsp; — | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;13835613 |
| **Total Investments** | &nbsp;&nbsp;**$283040249** | &nbsp;&nbsp;**$5307995** | &nbsp;&nbsp;**$—** | &nbsp;&nbsp;**$288348244** |
| Futures Contracts | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;$7957 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;$— | &nbsp;&nbsp;$— | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;$7957 |
| **Total** | &nbsp;&nbsp;**$283048206** | &nbsp;&nbsp;**$5307995** | &nbsp;&nbsp;**$—** | &nbsp;&nbsp;**$288356201** |
| **Liability Description** |  |  |  |  |
| Futures Contracts | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;$(31063) | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;$— | &nbsp;&nbsp;$— | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;$(31063) |
| **Total** | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**$(31063)** | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**$—** | &nbsp;&nbsp;**$—** | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**$(31063)** |

---

For information on the Fund's policy regarding the valuation of investments and other significant accounting policies, please refer to the Fund's most recent financial statements included in its semiannual or annual report to shareholders.

## Form NPORT-P: Monthly Portfolio Investments Report

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

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

- **a. Name of Registrant:** CALVERT SOCIAL INVESTMENT FUND

- **b. Investment Company Act file number:** 811-03334

- **c. CIK number of Registrant:** 0000356682

- **d. LEI of Registrant:** 549300V0NY9G3Y5OI796

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

  - **Street Address 1:** 1825 Connecticut Avenue NW

  - **City:** Washington

  - **State:** DC

  - **Foreign country:** US

  - **Zip / Postal Code:** 20009

  - **Telephone number:** 202-238-2200

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

- **a. Name of Series:** Calvert Growth Allocation Fund

- **b. EDGAR series identifier (if any):** S000008723

- **c. LEI of Series:** 549300UGXJ3LMFVD6U44

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

- **a. Date of fiscal year-end:** 2023-09-30

- **b. Date as of which information is reported:** 2022-12-31

**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:** $288865006.32

**Total Liabilities:** $267016.37

**Net Assets:** $288597989.95

**Cash Not Reported:** $18101.69

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000023775 | 5.83%                | 7.49%                | -4.07%               |
| Class ID C000099328 | 5.96%                | 7.62%                | -4.04%               |
| Class ID C000023774 | 5.90%                | 7.58%                | -4.01%               |
| Class ID C000235280 | 5.96%                | 7.57%                | -3.98%               |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $0.00                    | $15685637.28                               |
| Month 2  | $12730685.59             | $8192427.59                                |
| Month 3  | $0.00                    | $-16768152.33                              |

**Designated Index Information**

- **Index Name:** 60% Russell 3000 / 30% MSCI ACWI ex USA IMI / 10% Bloomberg US Agg

- **Index Identifier:** RSMSLAUSD

### 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                             | United States Treasury Inflation Indexed Bonds                      | CUSIP: 912810SM1<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |   3592900 | PA      | $2426338.15   | 0.84%             | 2050-02-15      | Fixed         | 0.25%                 | No            |                  2 | On Loan: No      |
| Calvert US Mid Cap Core Responsible Index Fund     | Calvert US Mid Cap Core Responsible Index Fund                      | CUSIP: 131618456<br>LEI: 549300I74Z158YTBPO44 | Long             | EC               | RF                | US        |    389129 | NS      | $12732305.17  | 4.41%             |  |  |  | No            |                  1 | On Loan: No      |
| Calvert International Opportunities Fund           | Calvert International Opportunities Fund                            | CUSIP: 131649758<br>LEI: 549300125QOYCBC7IB51 | Long             | EC               | RF                | US        |   1455202 | NS      | $22308247.37  | 7.73%             |  |  |  | No            |                  1 | On Loan: No      |
| Calvert US Large Cap Core Responsible Index Fund   | Calvert US Large Cap Core Responsible Index Fund                    | CUSIP: 131582298<br>LEI: 549300PO0F0AV64IR605 | Long             | EC               | RF                | US        |   1192535 | NS      | $39449051.88  | 13.67%            |  |  |  | No            |                  1 | On Loan: No      |
| Chicago Board of Trade                             | US 10YR ULTRA FUT MAR23                                             | CUSIP: 000000000<br>LEI: 549300EX04Q2QBFQTQ27 | N/A              | DIR              |  | US        |        -1 | NC      | $820.29       | 0.00%             |  |  |  | No            |                  1 | On Loan: No      |
| Calvert High Yield Bond Fund                       | Calvert High Yield Bond Fund                                        | CUSIP: 131582272<br>LEI: 549300CCIV46L1T22Z08 | Long             | EC               | RF                | US        |    422475 | NS      | $9700037.14   | 3.36%             |  |  |  | No            |                  1 | On Loan: No      |
| Calvert Focused Value Fund                         | Calvert Focused Value Fund                                          | CUSIP: 131582132<br>LEI: 549300Z5XUUT6OW4YT43 | Long             | EC               | RF                | US        |    991763 | NS      | $9758943.84   | 3.38%             |  |  |  | No            |                  1 | On Loan: No      |
| Chicago Board of Trade                             | US 10YR NOTE (CBT)MAR23                                             | CUSIP: 000000000<br>LEI: 549300EX04Q2QBFQTQ27 | N/A              | DIR              |  | US        |        36 | NC      | $-21976.02    | -0.01%            |  |  |  | No            |                  1 | On Loan: No      |
| Calvert US Large Cap Growth Responsible Index Fund | Calvert US Large Cap Growth Responsible Index Fund                  | CUSIP: 131618472<br>LEI: 5493000179G37BJVLO31 | Long             | EC               | RF                | US        |    425566 | NS      | $16899239.96  | 5.86%             |  |  |  | No            |                  1 | On Loan: No      |
| Calvert Emerging Markets Advancement Fund          | Calvert Emerging Markets Advancement Fund                           | CUSIP: 131649717<br>LEI: 549300OOWWGW13TF0P06 | Long             | EC               | RF                | US        |   1865375 | NS      | $18224714.29  | 6.31%             |  |  |  | No            |                  1 | On Loan: No      |
| Calvert Emerging Markets Equity Fund               | Calvert Emerging Markets Equity Fund                                | CUSIP: 131649766<br>LEI: 549300L4S5NY62FOKA38 | Long             | EC               | RF                | US        |    952243 | NS      | $14921647.42  | 5.17%             |  |  |  | No            |                  1 | On Loan: No      |
| Chicago Board of Trade                             | US 5YR NOTE (CBT) MAR23                                             | CUSIP: 000000000<br>LEI: 549300EX04Q2QBFQTQ27 | N/A              | DIR              |  | US        |        17 | NC      | $-2275.99     | -0.00%            |  |  |  | No            |                  1 | On Loan: No      |
| Chicago Board of Trade                             | US LONG BOND(CBT) MAR23                                             | CUSIP: 000000000<br>LEI: 549300EX04Q2QBFQTQ27 | N/A              | DIR              |  | US        |         6 | NC      | $-6811.09     | -0.00%            |  |  |  | No            |                  1 | On Loan: No      |
| Calvert US Large Cap Value Responsible Index Fund  | Calvert US Large Cap Value Responsible Index Fund                   | CUSIP: 131618464<br>LEI: 5493005WGBW1GHF4CG37 | Long             | EC               | RF                | US        |   1428395 | NS      | $39338011.99  | 13.63%            |  |  |  | No            |                  1 | On Loan: No      |
| Calvert Floating-Rate Advantage Fund               | Calvert Floating-Rate Advantage Fund                                | CUSIP: 13161X865<br>LEI: 549300GG1YFY0YH1UJ86 | Long             | EC               | RF                | US        |    477994 | NS      | $4129865.14   | 1.43%             |  |  |  | No            |                  1 | On Loan: No      |
| Calvert Mid-Cap Fund                               | Calvert Mid-Cap Fund                                                | CUSIP: 131649709<br>LEI: 549300Y1UC9HCBUDKZ85 | Long             | EC               | RF                | US        |    149852 | NS      | $5775285.17   | 2.00%             |  |  |  | No            |                  1 | On Loan: No      |
| Morgan Stanley & Co. LLC                           | Morgan Stanley Institutional Liquidity Funds - Government Portfolio | CUSIP: 61747C707<br>LEI: 549300BI6Y5SI6BYPB26 | Long             | STIV             | RF                | US        |  13835613 | NS      | $13835613.37  | 4.79%             |  |  |  | No            |                  1 | On Loan: No      |
| Calvert Small Cap Fund                             | Calvert Small Cap Fund                                              | CUSIP: 13161P672<br>LEI: 549300MIJR64EECJ6M85 | Long             | EC               | RF                | US        |    393698 | NS      | $11803056.42  | 4.09%             |  |  |  | No            |                  1 | On Loan: No      |
| Calvert Equity Fund                                | Calvert Equity Fund                                                 | CUSIP: 131582280<br>LEI: 5493008KHIQHXPKPLB89 | Long             | EC               | RF                | US        |    215369 | NS      | $16887087.99  | 5.85%             |  |  |  | No            |                  1 | On Loan: No      |
| Calvert International Responsible Index Fund       | Calvert International Responsible Index Fund                        | CUSIP: 13161Y848<br>LEI: 5493002R7L7YSTUULM88 | Long             | EC               | RF                | US        |    841112 | NS      | $20565183.68  | 7.13%             |  |  |  | No            |                  1 | On Loan: No      |
| United States Treasury                             | United States Treasury Inflation Indexed Bonds                      | CUSIP: 91282CEZ0<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |   3143311 | PA      | $2881656.69   | 1.00%             | 2032-07-15      | Fixed         | 0.62%                 | No            |                  2 | On Loan: No      |
| Calvert International Equity Fund                  | Calvert International Equity Fund                                   | CUSIP: 131649741<br>LEI: 549300DYXGATLWKZ1990 | Long             | EC               | RF                | US        |   1282520 | NS      | $26637946.78  | 9.23%             |  |  |  | No            |                  1 | On Loan: No      |
| Chicago Board of Trade                             | US ULTRA BOND CBT MAR23                                             | CUSIP: 000000000<br>LEI: 549300EX04Q2QBFQTQ27 | N/A              | DIR              |  | US        |        -5 | NC      | $7136.34      | 0.00%             |  |  |  | No            |                  1 | On Loan: No      |

### Signature

**Date Signed:** 2023-01-25

**Name of Applicant:** CALVERT SOCIAL INVESTMENT FUND

**Signature:** James Kirchner

**Name of Signer:** James Kirchner

**Title:** Treasurer