# EDGAR Filing Document

**Accession Number:** 0001500604
**File Stem:** 0001398344-25-016416
**Filing Date:** 2025-8
**Character Count:** 2482
**Document Hash:** 1476f5ba399b16b3ea86e212806d9c52
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001398344-25-016416.hdr.sgml**: 20250822

**ACCESSION NUMBER**: 0001398344-25-016416

**CONFORMED SUBMISSION TYPE**: 497J

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20250822

**DATE AS OF CHANGE**: 20250822

**EFFECTIVENESS DATE**: 20250822

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Janus Detroit Street Trust
- **CENTRAL INDEX KEY:** 0001500604

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1031

**FILING VALUES:**
- **FORM TYPE:** 497J
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-207814
- **FILM NUMBER:** 251245666

**BUSINESS ADDRESS:**
- **STREET 1:** 151 DETROIT STREET
- **CITY:** DENVER
- **STATE:** CO
- **ZIP:** 80206
- **BUSINESS PHONE:** 303-333-3863

**MAIL ADDRESS:**
- **STREET 1:** 151 DETROIT STREET
- **CITY:** DENVER
- **STATE:** CO
- **ZIP:** 80206

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Janus ETF Trust
- **DATE OF NAME CHANGE:** 20100902

## Series and Classes Contracts Data

### Janus Henderson Global Artificial Intelligence ETF (Series ID: S000094567)

| Class ID   | Class Name                                         | Ticker Symbol   |
|:---|:---|:---|
| C000263100 | Janus Henderson Global Artificial Intelligence ETF | JHAI            |

[Janus Henderson Letterhead]

August 22, 2025

EDGAR Operations Branch

Securities and Exchange Commission

Division of Investment Management

100 F Street, N.E.

Washington, D.C. 20549-0505

Re: JANUS DETROIT STREET TRUST (the "Registrant")<br> 1933 Act File No. 333-207814<br> 1940 Act File No. 811-23112

Dear Sir or Madam:

Pursuant to Rule 497(j) of Regulation C under the Securities Act of 1933, as amended (the "1933 Act"), the undersigned hereby certifies on behalf of the Registrant:

&nbsp;&nbsp;&nbsp;&nbsp;1. There are no changes to the Prospectus and Statement of Additional Information ("SAI") from the forms of the Prospectus
and SAI that were filed in Post-Effective Amendment No. 70 ("PEA No. 70") on August 18, 2025, pursuant to Rule 485(b) under
the 1933 Act for Janus Henderson Global Artificial Intelligence ETF.

&nbsp;&nbsp;&nbsp;&nbsp;2. The text of PEA No. 70 has been filed electronically.

If you have any questions regarding this filing, please call me at (303) 336-7903.

Respectfully,

/s/ Cara Owen

Cara Owen, Esq.

Vice President, Secretary, and Chief Legal Officer of the Registrant

Enclosure (via EDGAR)

cc: Jay Mensah, Esq.<br> Eric S. Purple, Esq.