# EDGAR Filing Document

**Accession Number:** 0000351601
**File Stem:** 0001410368-25-040895
**Filing Date:** 2025-12
**Character Count:** 7917
**Document Hash:** 798bfc4053c84795c6afcf735ba9c2f7
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001410368-25-040895.hdr.sgml**: 20251222

**ACCESSION NUMBER**: 0001410368-25-040895

**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:** RUSSELL INVESTMENT CO
- **CENTRAL INDEX KEY:** 0000351601

**ORGANIZATION NAME:**
- **EIN:** 911151059
- **STATE OF INCORPORATION:** MA
- **FISCAL YEAR END:** 1031

**FILING VALUES:**
- **FORM TYPE:** NPORT-P
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-03153
- **FILM NUMBER:** 251591617

**BUSINESS ADDRESS:**
- **STREET 1:** 401 UNION STREET
- **STREET 2:** 18TH FLOOR
- **CITY:** SEATTLE
- **STATE:** WA
- **BUSINESS PHONE:** 800-787-7354

**MAIL ADDRESS:**
- **STREET 1:** 401 UNION STREET
- **STREET 2:** 18TH FLOOR
- **CITY:** SEATTLE
- **STATE:** WA

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** RUSSELL FRANK INVESTMENT CO
- **DATE OF NAME CHANGE:** 19920703

## Series and Classes Contracts Data

### Conservative Strategy Fund (Series ID: S000001578)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000004265 | Class A      | RCLAX           |
| C000004266 | Class C      | RCLCX           |
| C000004268 | Class S      | RCLSX           |
| C000027580 | Class R1     | RCLRX           |
| C000137237 | Class R5     | RCLVX           |

## Form NPORT-P: Monthly Portfolio Investments Report

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

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

- **a. Name of Registrant:** RUSSELL INVESTMENT CO

- **b. Investment Company Act file number:** 811-03153

- **c. CIK number of Registrant:** 0000351601

- **d. LEI of Registrant:** 549300J63VJ9OS4TCK93

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

  - **Street Address 1:** 401 Union Street

  - **City:** Seattle

  - **State:** WA

  - **Foreign country:** US

  - **Zip / Postal Code:** 98101

  - **Telephone number:** 800-787-7354

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

- **a. Name of Series:** Conservative Strategy Fund

- **b. EDGAR series identifier (if any):** S000001578

- **c. LEI of Series:** D7FRTMXY2CS76ECVES28

**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:** $59921387.57

**Total Liabilities:** $80039.63

**Net Assets:** $59841347.94

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000004265 | 1.69%                | 1.33%                | 0.63%                |
| Class ID C000004266 | 1.63%                | 1.26%                | 0.57%                |
| Class ID C000004268 | 1.66%                | 1.41%                | 0.56%                |
| Class ID C000027580 | 1.66%                | 1.30%                | 0.70%                |
| Class ID C000137237 | 1.67%                | 1.31%                | 0.54%                |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $17223.51                | $856154.97                                 |
| Month 2  | $59428.54                | $596574.88                                 |
| Month 3  | $20115.15                | $137009.30                                 |

### 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   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| Global Real Estate Securities Fund    | Global Real Estate Securities Fund    | CUSIP: 782478713<br>LEI: 12EWS3SG92VUE6HTB591 | Long             | EC               | RF                | US        |     39421 | NS      | $1191300.08   | 1.99%             |  |  |  | No            |                  1 | On Loan: No      |
| Strategic Bond Fund                   | Strategic Bond Fund                   | CUSIP: 782493159<br>LEI: XI1M1CDVRC8YNT0B5804 | Long             | EC               | RF                | US        |   2153144 | NS      | $19765863.32  | 33.03%            |  |  |  | No            |                  1 | On Loan: No      |
| Investment Grade Bond Fund            | Investment Grade Bond Fund            | CUSIP: 782493175<br>LEI: 6XE31ODZPBO0SIDX5S75 | Long             | EC               | RF                | US        |    546328 | NS      | $10183555.99  | 17.02%            |  |  |  | No            |                  1 | On Loan: No      |
| U.S. Small Cap Equity Fund            | U.S. Small Cap Equity Fund            | CUSIP: 782493266<br>LEI: Z3PZWNK5SYVMTLL03992 | Long             | EC               | RF                | US        |     44622 | NS      | $1191843.84   | 1.99%             |  |  |  | No            |                  1 | On Loan: No      |
| Opportunistic Credit Fund             | Opportunistic Credit Fund             | CUSIP: 782494181<br>LEI: QMX8CVY41B3G014K7N60 | Long             | EC               | RF                | US        |    683451 | NS      | $5993868.79   | 10.02%            |  |  |  | No            |                  1 | On Loan: No      |
| Short Duration Bond Fund              | Short Duration Bond Fund              | CUSIP: 782494421<br>LEI: SYIWP2HFI2PTL75P6V57 | Long             | EC               | RF                | US        |    267105 | NS      | $5099032.60   | 8.52%             |  |  |  | No            |                  1 | On Loan: No      |
| Emerging Markets Fund                 | Emerging Markets Fund                 | CUSIP: 782494439<br>LEI: TUWQFBBWGP866F5SFO52 | Long             | EC               | RF                | US        |     56362 | NS      | $1197685.85   | 2.00%             |  |  |  | No            |                  1 | On Loan: No      |
| Multi-Strategy Income Fund            | Multi-Strategy Income Fund            | CUSIP: 78249R214<br>LEI: 549300A5DFWAE2ARUU44 | Long             | EC               | RF                | US        |    472098 | NS      | $4791797.84   | 8.01%             |  |  |  | No            |                  1 | On Loan: No      |
| Multifactor International Equity Fund | Multifactor International Equity Fund | CUSIP: 78249R289<br>LEI: 5493004SX31W5EXJ2590 | Long             | EC               | RF                | US        |     95912 | NS      | $1197943.24   | 2.00%             |  |  |  | No            |                  1 | On Loan: No      |
| Multifactor U.S. Equity Fund          | Multifactor U.S. Equity Fund          | CUSIP: 78249R347<br>LEI: 549300PPT7741EJKD754 | Long             | EC               | RF                | US        |    291728 | NS      | $5113991.51   | 8.55%             |  |  |  | No            |                  1 | On Loan: No      |
| Long Duration Bond Fund               | Long Duration Bond Fund               | CUSIP: 78250F398<br>LEI: 549300VRXC77M7KZRU37 | Long             | EC               | RF                | US        |    519906 | NS      | $4190440.56   | 7.00%             |  |  |  | No            |                  1 | On Loan: No      |

### Signature

**Date Signed:** 2025-11-17

**Name of Applicant:** RUSSELL INVESTMENT CO

**Signature:** Ross Erickson

**Name of Signer:** Ross Erickson

**Title:** Treasurer, Principal Accounting Officer and Principal Financial Officer