# EDGAR Filing Document

**Accession Number:** 0001227523
**File Stem:** 0002071844-25-000256
**Filing Date:** 2025-10
**Character Count:** 9096
**Document Hash:** 3f334f6321e10383fc8a93738229d729
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0002071844-25-000256.hdr.sgml**: 20251016

**ACCESSION NUMBER**: 0002071844-25-000256

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20251016

**DATE AS OF CHANGE**: 20251016

**EFFECTIVENESS DATE**: 20251016

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** OPTIMUM FUND TRUST
- **CENTRAL INDEX KEY:** 0001227523

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 0331

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-104654
- **FILM NUMBER:** 251397162

**BUSINESS ADDRESS:**
- **STREET 1:** 100 INDEPENDENCE
- **STREET 2:** 610 MARKET STREET
- **CITY:** PHILADELPHIA
- **STATE:** PA
- **ZIP:** 19106-2354
- **BUSINESS PHONE:** 800.914.0278

**MAIL ADDRESS:**
- **STREET 1:** 100 INDEPENDENCE
- **STREET 2:** 610 MARKET STREET
- **CITY:** PHILADELPHIA
- **STATE:** PA
- **ZIP:** 19106-2354

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** BOB TRUST
- **DATE OF NAME CHANGE:** 20030415

## Series and Classes Contracts Data

### OPTIMUM FIXED INCOME FUND (Series ID: S000002420)

---

|  |  |  |
|:---|:---|:---|
| Class Name                                    | Ticker Symbol | Class ID   |
| OPTIMUM FIXED INCOME FUND CLASS A             | OAFIX         | C000006443 |
| OPTIMUM FIXED INCOME FUND CLASS C             | OCFIX         | C000006445 |
| OPTIMUM FIXED INCOME FUND INSTITUTIONAL CLASS | OIFIX         | C000006446 |

---

### OPTIMUM INTERNATIONAL FUND (Series ID: S000002421)

---

|  |  |  |
|:---|:---|:---|
| Class Name                                     | Ticker Symbol | Class ID   |
| OPTIMUM INTERNATIONAL FUND CLASS A             | OAIEX         | C000006447 |
| OPTIMUM INTERNATIONAL FUND CLASS C             | OCIEX         | C000006449 |
| OPTIMUM INTERNATIONAL FUND INSTITUTIONAL CLASS | OIIEX         | C000006450 |

---

### OPTIMUM LARGE CAP GROWTH FUND (Series ID: S000002422)

---

|  |  |  |
|:---|:---|:---|
| Class Name                                        | Ticker Symbol | Class ID   |
| OPTIMUM LARGE CAP GROWTH FUND CLASS A             | OALGX         | C000006451 |
| OPTIMUM LARGE CAP GROWTH FUND CLASS C             | OCLGX         | C000006453 |
| OPTIMUM LARGE CAP GROWTH FUND INSTITUTIONAL CLASS | OILGX         | C000006454 |

---

### OPTIMUM LARGE CAP VALUE FUND (Series ID: S000002423)

---

|  |  |  |
|:---|:---|:---|
| Class Name                                       | Ticker Symbol | Class ID   |
| OPTIMUM LARGE CAP VALUE FUND CLASS A             | OALVX         | C000006455 |
| OPTIMUM LARGE CAP VALUE FUND CLASS C             | OCLVX         | C000006457 |
| OPTIMUM LARGE CAP VALUE FUND INSTITUTIONAL CLASS | OILVX         | C000006458 |

---

### OPTIMUM SMALL-MID CAP GROWTH FUND (Series ID: S000002424)

---

|  |  |  |
|:---|:---|:---|
| Class Name                                            | Ticker Symbol | Class ID   |
| OPTIMUM SMALL-MID CAP GROWTH FUND CLASS A             | OASGX         | C000006459 |
| OPTIMUM SMALL-MID CAP GROWTH FUND CLASS C             | OCSGX         | C000006461 |
| OPTIMUM SMALL-MID CAP GROWTH FUND INSTITUTIONAL CLASS | OISGX         | C000006462 |

---

### OPTIMUM SMALL-MID CAP VALUE FUND (Series ID: S000002425)

---

|  |  |  |
|:---|:---|:---|
| Class Name                                           | Ticker Symbol | Class ID   |
| OPTIMUM SMALL-MID CAP VALUE FUND CLASS A             | OASVX         | C000006463 |
| OPTIMUM SMALL-MID CAP VALUE FUND CLASS C             | OCSVX         | C000006465 |
| OPTIMUM SMALL-MID CAP VALUE FUND INSTITUTIONAL CLASS | OISVX         | C000006466 |

---

## Series and Classes Contracts Data

### OPTIMUM FIXED INCOME FUND (Series ID: S000002420)

| Class ID   | Class Name                                    | Ticker Symbol   |
|:---|:---|:---|
| C000006443 | OPTIMUM FIXED INCOME FUND CLASS A             | OAFIX           |
| C000006445 | OPTIMUM FIXED INCOME FUND CLASS C             | OCFIX           |
| C000006446 | OPTIMUM FIXED INCOME FUND INSTITUTIONAL CLASS | OIFIX           |

### OPTIMUM INTERNATIONAL FUND (Series ID: S000002421)

| Class ID   | Class Name                                     | Ticker Symbol   |
|:---|:---|:---|
| C000006447 | OPTIMUM INTERNATIONAL FUND CLASS A             | OAIEX           |
| C000006449 | OPTIMUM INTERNATIONAL FUND CLASS C             | OCIEX           |
| C000006450 | OPTIMUM INTERNATIONAL FUND INSTITUTIONAL CLASS | OIIEX           |

### OPTIMUM LARGE CAP GROWTH FUND (Series ID: S000002422)

| Class ID   | Class Name                                        | Ticker Symbol   |
|:---|:---|:---|
| C000006451 | OPTIMUM LARGE CAP GROWTH FUND CLASS A             | OALGX           |
| C000006453 | OPTIMUM LARGE CAP GROWTH FUND CLASS C             | OCLGX           |
| C000006454 | OPTIMUM LARGE CAP GROWTH FUND INSTITUTIONAL CLASS | OILGX           |

### OPTIMUM LARGE CAP VALUE FUND (Series ID: S000002423)

| Class ID   | Class Name                                       | Ticker Symbol   |
|:---|:---|:---|
| C000006455 | OPTIMUM LARGE CAP VALUE FUND CLASS A             | OALVX           |
| C000006457 | OPTIMUM LARGE CAP VALUE FUND CLASS C             | OCLVX           |
| C000006458 | OPTIMUM LARGE CAP VALUE FUND INSTITUTIONAL CLASS | OILVX           |

### OPTIMUM SMALL-MID CAP GROWTH FUND (Series ID: S000002424)

| Class ID   | Class Name                                            | Ticker Symbol   |
|:---|:---|:---|
| C000006459 | OPTIMUM SMALL-MID CAP GROWTH FUND CLASS A             | OASGX           |
| C000006461 | OPTIMUM SMALL-MID CAP GROWTH FUND CLASS C             | OCSGX           |
| C000006462 | OPTIMUM SMALL-MID CAP GROWTH FUND INSTITUTIONAL CLASS | OISGX           |

### OPTIMUM SMALL-MID CAP VALUE FUND (Series ID: S000002425)

| Class ID   | Class Name                                           | Ticker Symbol   |
|:---|:---|:---|
| C000006463 | OPTIMUM SMALL-MID CAP VALUE FUND CLASS A             | OASVX           |
| C000006465 | OPTIMUM SMALL-MID CAP VALUE FUND CLASS C             | OCSVX           |
| C000006466 | OPTIMUM SMALL-MID CAP VALUE FUND INSTITUTIONAL CLASS | OISVX           |

#### OPTIMUM FUND TRUST

#### (the "Trust")

#### Optimum Large Cap Growth Fund

#### Optimum Large Cap Value Fund

#### Optimum Small-Mid Cap Growth Fund

#### Optimum Small-Mid Cap Value Fund

#### Optimum International Fund

#### Optimum Fixed Income Fund

#### (each, a "Fund")

#### Supplement to the current Prospectus and Statement of Additional Information for each Fund, dated July 31, 2025, as may be amended

The joint special shareholder meeting for each Fund has been adjourned to November 25, 2025.

Upon the closing of the transaction, anticipated to occur on or about November 1, 2025, in which Nomura Holding America Inc. will acquire Macquarie Asset Management's US and European public investments business, the following changes are anticipated to take effect:

<br> • All references to Macquarie Investment Management Business Trust are changed to Nomura Investment Management Business Trust.

• Each Fund will enter into an interim advisory agreement with Delaware Management Company (DMC) under which DMC will provide investment advisory services to each Fund for up to the earlier of 150 days from the effective date of the interim agreement or the date of shareholder approval of the new advisory agreement for such Fund.

**The foregoing is not a solicitation of any proxy. Please read the proxy statement carefully because it contains important information regarding the proposed new advisory agreement and the transaction. The proxy statement will be available for free on the website of the US Securities and Exchange Commission (www.sec.gov).**

**Because everyone's tax situation is unique, you should consult your tax professional about federal, state, local, or foreign tax consequences before making an investment in a Fund or acting on a distribution check (if applicable).**

**Delaware Management Company is an indirect wholly owned subsidiary of Macquarie Group Limited (MGL). None of the entities noted in this document is an authorized deposit-taking institution for the purposes of the Banking Act 1959 (Commonwealth of Australia) and the obligations of these entities do not represent deposits or other liabilities of Macquarie Bank Limited ABN 46 008 583 542 (Macquarie Bank). Macquarie Bank does not guarantee or otherwise provide assurance in respect of the obligations of these entities. In addition, if this document relates to an investment (a) each investor is subject to investment risk including possible delays in repayment and loss of income and principal invested and (b) none of Macquarie Bank or any other Macquarie Group company guarantees any particular rate of return on or the performance of the investment, nor do they guarantee repayment of capital in respect of the investment.**

------

#### Please keep this Supplement for future reference.

#### This Supplement is dated October 16, 2025.

<br>