# EDGAR Filing Document

**Accession Number:** 0001426439
**File Stem:** 0001999371-26-008220
**Filing Date:** 2026-4
**Character Count:** 6865
**Document Hash:** 91f5a39961490401ee045ed325d13d9e
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001999371-26-008220.hdr.sgml**: 20260414

**ACCESSION NUMBER**: 0001999371-26-008220

**CONFORMED SUBMISSION TYPE**: 485BXT

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260414

**DATE AS OF CHANGE**: 20260414

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** New York Life Investments Active ETF Trust
- **CENTRAL INDEX KEY:** 0001426439

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 0430

**FILING VALUES:**
- **FORM TYPE:** 485BXT
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-22739
- **FILM NUMBER:** 26859714

**BUSINESS ADDRESS:**
- **STREET 1:** 51 MADISON AVENUE
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10010
- **BUSINESS PHONE:** (212) 576-5018

**MAIL ADDRESS:**
- **STREET 1:** 51 MADISON AVENUE
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10010

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** NYLI MacKay Core Plus Bond ETF
- **DATE OF NAME CHANGE:** 20241203

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** New York Life Investments Active ETF Trust
- **DATE OF NAME CHANGE:** 20240822

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** IndexIQ Active ETF Trust
- **DATE OF NAME CHANGE:** 20080207
**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** New York Life Investments Active ETF Trust
- **CENTRAL INDEX KEY:** 0001426439

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 0430

**FILING VALUES:**
- **FORM TYPE:** 485BXT
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-183489
- **FILM NUMBER:** 26859713

**BUSINESS ADDRESS:**
- **STREET 1:** 51 MADISON AVENUE
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10010
- **BUSINESS PHONE:** (212) 576-5018

**MAIL ADDRESS:**
- **STREET 1:** 51 MADISON AVENUE
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10010

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** NYLI MacKay Core Plus Bond ETF
- **DATE OF NAME CHANGE:** 20241203

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** New York Life Investments Active ETF Trust
- **DATE OF NAME CHANGE:** 20240822

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** IndexIQ Active ETF Trust
- **DATE OF NAME CHANGE:** 20080207

## Series and Classes Contracts Data

### NYLI International Small-Mid Cap Equity ETF (Series ID: S000101653)

| Class ID   | Class Name                                  | Ticker Symbol   |
|:---|:---|:---|
| C000271870 | NYLI International Small-Mid Cap Equity ETF |  |

As filed with the Securities and Exchange Commission on April 14, 2026

Securities Act File No. 333-183489

Investment Company Act File No. 811-22739

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**WASHINGTON, D.C. 20549**

------

**FORM N-1A**

---

| | |
|:---|:---|
| REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 | ☐ |
| Pre-Effective Amendment No. | ☐ |
| Post-Effective Amendment No. 138 | ☒ |
| and/or | and/or |
| REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940 | ☐ |
| Amendment No. 144 | ☒ |

---

**NEW YORK LIFE INVESTMENTS ACTIVE ETF TRUST**

(Exact Name of Registrant as Specified in Charter)

**51 Madison Avenue<br> New York, NY 10010**

(Address of Principal Executive Office)

Registrant's Telephone Number, including Area Code: **(888) 474-7725**

**Matthew V. Curtin, Esq.**

**New York Life Investment Management LLC**

**51 Madison Avenue**

**New York, NY 10010**

---

| | |
|:---|:---|
| It is proposed that this filing will become effective (check appropriate box): | It is proposed that this filing will become effective (check appropriate box): |
| ☐ | Immediately upon filing pursuant to paragraph (b) of Rule 485. |
| ☒ | On May 1, 2026 pursuant to paragraph (b) of Rule 485. |
| ☐ | 60 days after filing pursuant to paragraph (a)(1) of Rule 485. |
| ☐ | On (date) pursuant to paragraph (a) of Rule 485. |
| ☐ | 75 days after filing pursuant to paragraph (a)(2) of Rule 485. |
| ☐ | On (date) pursuant to paragraph (a) of Rule 485. |

---

If appropriate, check the following box: <br>☒ This post-effective amendment designates a new effective date for a previously filed post-effective amendment.

**Explanatory Note**

This Post-Effective Amendment No. 138 to the Registrant's Registration Statement on Form N-1A is being filed solely for the purpose of delaying until May 1, 2026, the effectiveness of the registration statement for NYLI International Small-Mid Cap Equity ETF (the "Fund") filed in Post-Effective Amendment No. 134 on December 12, 2025, the effectiveness of which was delayed pursuant to Post-Effective Amendment No. 136, filed on March 16, 2026.

This Post-Effective Amendment No. 138 incorporates by reference the information contained in Parts A, B and C of [Post-Effective Amendment No. 134](https://www.sec.gov/Archives/edgar/data/1426439/000199937125020176/nyli-485apos_121225.htm). This Post-Effective Amendment does not affect the currently effective prospectuses and statements of additional information for the other series of the Trust's shares.

**Signatures**

Pursuant to the requirements of the Securities Act of 1933, as amended (the *"Securities Act"*) and the Investment Company Act of 1940, as amended, the Registrant certifies that it meets all of the requirements for effectiveness of this Registration Statement under Rule 485(b) under the Securities Act has duly caused this Registration Statement to be signed on its behalf by the undersigned, duly authorized, in the City of New York, and State of New York, on April 14, 2026.

---

| | |
|:---|:---|
| New York Life Investments Active ETF Trust | New York Life Investments Active ETF Trust |
| By: | /s/ Kirk C. Lehneis |
|  | Kirk C. Lehneis |
|  | President |

---

Pursuant to the requirements of the Securities Act, this Registration Statement has been signed below by the following persons in the capacities and on the date indicated:

---

| | | |
|:---|:---|:---|
| **Name** | **Title** | **Date** |
| /s/ Lofton Holder\* | Trustee | April 14, 2026 |
| Lofton Holder |  |  |
| /s/ Michael A. Pignataro\* | Trustee | April 14, 2026 |
| Michael A. Pignataro |  |  |
| /s/ Paul D. Schaeffer\* | Trustee | April 14, 2026 |
| Paul D. Schaeffer |  |  |
| /s/ Michelle A. Kinch\* | Trustee | April 14, 2026 |
| Michelle A. Kinch  |  |  |
| /s/ Kirk C. Lehneis | Trustee, President and Principal Executive Officer | April 14, 2026 |
| Kirk C. Lehneis |  |  |
| /s/ Adefolahan Oyefeso | Treasurer, Principal Financial Officer, | April 14, 2026 |
| Adefolahan Oyefeso | and Principal Accounting Officer |  |
| /s/ Matthew V. Curtin  |  | April 14, 2026 |
| Matthew V. Curtin, Attorney-in-fact\* |  |  |

---

\* Pursuant to Powers of Attorney previously filed as an exhibit and [incorporated by reference](https://www.sec.gov/Archives/edgar/data/1426439/000199937124010692/ex99-q.htm) herein.