# EDGAR Filing Document

**Accession Number:** 0000351601
**File Stem:** 0001410368-25-040903
**Filing Date:** 2025-12
**Character Count:** 8239
**Document Hash:** 482259b0b732d87ed3e1b7bc5c93de87
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001410368-25-040903.hdr.sgml**: 20251222

**ACCESSION NUMBER**: 0001410368-25-040903

**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:** 251591628

**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

### Aggressive Strategy Fund (Series ID: S000001575)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000004250 | Class A      | RALAX           |
| C000004251 | Class C      | RALCX           |
| C000004253 | Class S      | RALSX           |
| C000027574 | Class R1     | RALRX           |
| C000137231 | Class R5     | RALVX           |

## 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:** Aggressive Strategy Fund

- **b. EDGAR series identifier (if any):** S000001575

- **c. LEI of Series:** IKP5EQ1QZHHH33S96T86

**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:** $617516390.79

**Total Liabilities:** $419879.04

**Net Assets:** $617096511.75

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000004250 | 2.69%                | 2.62%                | 1.08%                |
| Class ID C000004251 | 2.61%                | 2.62%                | 1.00%                |
| Class ID C000004253 | 2.69%                | 2.69%                | 1.11%                |
| Class ID C000027574 | 2.76%                | 2.61%                | 1.12%                |
| Class ID C000137231 | 2.70%                | 2.63%                | 1.04%                |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $806602.85               | $15238625.33                               |
| Month 2  | $8126029.09              | $7831517.16                                |
| Month 3  | $834723.28               | $4926140.25                                |

### 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        |    596862 | NS      | $18037163.20  | 2.92%             |  |  |  | No            |                  1 | On Loan: No      |
| Strategic Bond Fund                   | Strategic Bond Fund                   | CUSIP: 782493159<br>LEI: XI1M1CDVRC8YNT0B5804 | Long             | EC               | RF                | US        |   3326357 | NS      | $30535956.31  | 4.95%             |  |  |  | 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        |    686685 | NS      | $18341359.96  | 2.97%             |  |  |  | No            |                  1 | On Loan: No      |
| Opportunistic Credit Fund             | Opportunistic Credit Fund             | CUSIP: 782494181<br>LEI: QMX8CVY41B3G014K7N60 | Long             | EC               | RF                | US        |   2452920 | NS      | $21512107.15  | 3.49%             |  |  |  | No            |                  1 | On Loan: No      |
| Global Infrastructure Fund            | Global Infrastructure Fund            | CUSIP: 782494249<br>LEI: YLLCHFXPBQ1D4DCY1U29 | Long             | EC               | RF                | US        |   1156390 | NS      | $12061152.41  | 1.95%             |  |  |  | No            |                  1 | On Loan: No      |
| Emerging Markets Fund                 | Emerging Markets Fund                 | CUSIP: 782494439<br>LEI: TUWQFBBWGP866F5SFO52 | Long             | EC               | RF                | US        |   1908660 | NS      | $40559015.80  | 6.57%             |  |  |  | No            |                  1 | On Loan: No      |
| Global Equity Fund                    | Global Equity Fund                    | CUSIP: 782494447<br>LEI: VTHOU527SFHXM6LQY641 | Long             | EC               | RF                | US        |  15227092 | NS      | $179831958.81 | 29.14%            |  |  |  | No            |                  1 | On Loan: No      |
| Multifactor International Equity Fund | Multifactor International Equity Fund | CUSIP: 78249R289<br>LEI: 5493004SX31W5EXJ2590 | Long             | EC               | RF                | US        |   5409363 | NS      | $67562941.46  | 10.95%            |  |  |  | No            |                  1 | On Loan: No      |
| Multifactor U.S. Equity Fund          | Multifactor U.S. Equity Fund          | CUSIP: 78249R347<br>LEI: 549300PPT7741EJKD754 | Long             | EC               | RF                | US        |   4443778 | NS      | $77899435.95  | 12.62%            |  |  |  | No            |                  1 | On Loan: No      |
| Long Duration Bond Fund               | Long Duration Bond Fund               | CUSIP: 78250F398<br>LEI: 549300VRXC77M7KZRU37 | Long             | EC               | RF                | US        |   4534158 | NS      | $36545309.69  | 5.92%             |  |  |  | No            |                  1 | On Loan: No      |
| Multi-Asset Strategy Fund             | Multi-Asset Strategy Fund             | CUSIP: 78250F547<br>LEI: 549300X1VBO22V2H1F97 | Long             | EC               | RF                | US        |   4105560 | NS      | $49348836.87  | 8.00%             |  |  |  | No            |                  1 | On Loan: No      |
| U.S. Strategic Equity Fund            | U.S. Strategic Equity Fund            | CUSIP: 78250K611<br>LEI: BRBLDEE3W4XF96JMJI77 | Long             | EC               | RF                | US        |   3492574 | NS      | $65276216.34  | 10.58%            |  |  |  | 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