# EDGAR Filing Document

**Accession Number:** 0001469192
**File Stem:** 0001926623-23-000017
**Filing Date:** 2023-3
**Character Count:** 8073
**Document Hash:** 00fae72c3f64599d2ecf7cc2c6497725
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001926623-23-000017.hdr.sgml**: 20230307

**ACCESSION NUMBER**: 0001926623-23-000017

**CONFORMED SUBMISSION TYPE**: N-MFP2

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20230228

**FILED AS OF DATE**: 20230307

**DATE AS OF CHANGE**: 20230307

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** MAINSTAY FUNDS TRUST
- **CENTRAL INDEX KEY:** 0001469192
- **IRS NUMBER:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1031

**FILING VALUES:**
- **FORM TYPE:** N-MFP2
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-22321
- **FILM NUMBER:** 23711997

**BUSINESS ADDRESS:**
- **STREET 1:** 51 MADISON AVENUE
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10010
- **BUSINESS PHONE:** 212 576 7000

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

## Series and Classes Contracts Data

### MainStay U.S. Government Liquidity Fund (Series ID: S000063122)

| Class ID   | Class Name   | Ticker Symbol   |
|:---|:---|:---|
| C000204698 | Class I      | MUSXX           |

# Form N-MFP: Monthly Schedule of Portfolio Holdings

## N-MFP: Filer Information

**Submission Type:** N-MFP2

**Live/Test Flag:** —

**Is Electronic Copy of Paper Format:** —

**CIK:** —

### General Information

**Report for (YYYY-MM-DD):** 2023-02-28

**EDGAR Series Identifier:** S000063122

**Total number of share classes in the series:** —

**Is this the fund's final filing on Form N-MFP?:** —

**Is Fund Liquidating?:** —

**Is Fund Merging/Being Acquired?:** —

**Has the fund acquired or merged with another fund during the reporting period?:** —

## Part A: Series-Level Information about the Fund

### Service Providers
| Item   | Role                          | Details                                      | File/CIK Number   |
|:---|:---|:---|:---|
| A.5    | Administrator                 | New York Life Investment Management LLC      |  |
| A.4    | Independent Public Accountant | KPMG LLP<br>City: Philadelphia<br>State: PA  |  |
| A.6    | Transfer Agent                | NYLIM Service Company LLC<br>CIK: 0001103598 | 084-05844         |

### Fund Characteristics & Assets

- **A.7 - Is this a Feeder Fund?:** No

- **A.8 - Is this a Master Fund?:** No

- **A.9 - Is this series primarily used to fund insurance company separate accounts?:** No

- **A.10 - Money Market Fund Category:** Exempt Government

- **A.11 - WAM:** 15 days

- **A.12 - WAL:** 15 days

- **Total Value of Portfolio Securities:** $1355045576.38

- **Amortized Cost of Portfolio Securities:** $1355042245.21

- **Cash:** $120425.28

- **Total Other Assets:** $9971.11

- **Total Liabilities:** $4049788.99

- **Net Assets of Series:** $1351122852.61

- **Number of Shares Outstanding (Series):** 1351048961.86

- **Stable Price Per Share:** $1.00

- **7-Day Gross Yield:** 4.5700%

### Weekly Liquid Assets
| Period         | Daily Liquid Assets ($)   | Weekly Liquid Assets ($)   | Daily Liquid Assets (%)   | Weekly Liquid Assets (%)   |
|:---|:---|:---|:---|:---|
| Friday, Week 1 |  | $1105190887.82             |  | 100.0000%                  |
| Friday, Week 2 |  | $1095735521.15             |  | 100.0000%                  |
| Friday, Week 3 |  | $1106129083.64             |  | 100.0000%                  |
| Friday, Week 4 |  | $1398501949.37             |  | 100.0000%                  |

## Part B: Class-Level Information about the Fund

### Class: Unknown Class (—)

- **B.2 - Minimum Initial Investment:** $1.00

- **B.3 - Net Assets of Class:** $1351122852.61

- **B.4 - Shares Outstanding:** 1351048961.86

- **B.7.7 - 7-Day Net Yield:** 4.4300%

- **Person Paying for Fund Expenses?:** No

**Weekly Flows:**

| Period   | Gross Subscriptions ($)   | Gross Redemptions ($)   |
|:---|:---|:---|
| Week 1   | $175770199.24             | $231413306.77           |
| Week 2   | $187587469.43             | $197973354.15           |
| Week 3   | $206254775.97             | $196787291.25           |
| Week 4   | $414853856.90             | $123549112.04           |

**Monthly Shareholder Flow Activity:**

- **Gross Subscriptions for month:** $1017675206.44

- **Gross Redemptions for month:** $725594359.19

## Part C: Schedule of Portfolio Securities

### Security 1: U.S. Treasury Bills

- **C.1 - Title:** U.S. Treasury Bills 4.485
- **C.6 - Investment Category:** U.S. Treasury Debt
- **Identifiers:** C.3 - CUSIP: 912796Z77, C.4 - ISIN: US912796Z772, C.3 - LEI: 254900HROIFWPRGM1V77
- **C.18 - Value (incl. sponsor support):** $406715877.41
- **C.18.a - Value (excl. sponsor support):** $406715877.41
- **Principal Amount:** —
- **Amortized Cost:** —
- **Fair Value:** —
- **C.19 - Percentage of Net Assets:** 30.1000%
- **C.17 - Yield as of Reporting Date:** 4.4900%
- **C.11 - Maturity Date (WAM):** 2023-03-21
- **C.12 - Maturity Date (WAL):** 2023-03-21
- **C.13 - Final Legal Maturity Date:** 2023-03-21
- **Characteristics:** C.14 Has Demand Feature? No, C.15 Has Guarantee? No, C.16 Has Enhancement? No, C.22 Is an Illiquid Security? No, C.20 Is a Daily Liquid Asset? Yes, C.21 Is a Weekly Liquid Asset? Yes, C.23 Categorized at Level 3? No

### Security 2: U.S. Treasury Bills

- **C.1 - Title:** U.S. Treasury Bills 4.500
- **C.6 - Investment Category:** U.S. Treasury Debt
- **Identifiers:** C.3 - CUSIP: 912796Z69, C.4 - ISIN: US912796Z699, C.3 - LEI: 254900HROIFWPRGM1V77
- **C.18 - Value (incl. sponsor support):** $159757742.06
- **C.18.a - Value (excl. sponsor support):** $159757742.06
- **Principal Amount:** —
- **Amortized Cost:** —
- **Fair Value:** —
- **C.19 - Percentage of Net Assets:** 11.8200%
- **C.17 - Yield as of Reporting Date:** 4.5000%
- **C.11 - Maturity Date (WAM):** 2023-03-14
- **C.12 - Maturity Date (WAL):** 2023-03-14
- **C.13 - Final Legal Maturity Date:** 2023-03-14
- **Characteristics:** C.14 Has Demand Feature? No, C.15 Has Guarantee? No, C.16 Has Enhancement? No, C.22 Is an Illiquid Security? No, C.20 Is a Daily Liquid Asset? Yes, C.21 Is a Weekly Liquid Asset? Yes, C.23 Categorized at Level 3? No

### Security 3: U.S. Treasury Bills

- **C.1 - Title:** U.S. Treasury Bills 4.501
- **C.6 - Investment Category:** U.S. Treasury Debt
- **Identifiers:** C.3 - CUSIP: 912796Y86, C.4 - ISIN: US912796Y866, C.3 - LEI: 254900HROIFWPRGM1V77
- **C.18 - Value (incl. sponsor support):** $599215724.41
- **C.18.a - Value (excl. sponsor support):** $599215724.41
- **Principal Amount:** —
- **Amortized Cost:** —
- **Fair Value:** —
- **C.19 - Percentage of Net Assets:** 44.3500%
- **C.17 - Yield as of Reporting Date:** 4.5000%
- **C.11 - Maturity Date (WAM):** 2023-03-07
- **C.12 - Maturity Date (WAL):** 2023-03-07
- **C.13 - Final Legal Maturity Date:** 2023-03-07
- **Characteristics:** C.14 Has Demand Feature? No, C.15 Has Guarantee? No, C.16 Has Enhancement? No, C.22 Is an Illiquid Security? No, C.20 Is a Daily Liquid Asset? Yes, C.21 Is a Weekly Liquid Asset? Yes, C.23 Categorized at Level 3? No

### Security 4: U.S. Treasury Bills

- **C.1 - Title:** U.S. Treasury Bills 4.523
- **C.6 - Investment Category:** U.S. Treasury Debt
- **Identifiers:** C.3 - CUSIP: 912796Z85, C.4 - ISIN: US912796Z855, C.3 - LEI: 254900HROIFWPRGM1V77
- **C.18 - Value (incl. sponsor support):** $189356232.50
- **C.18.a - Value (excl. sponsor support):** $189356232.50
- **Principal Amount:** —
- **Amortized Cost:** —
- **Fair Value:** —
- **C.19 - Percentage of Net Assets:** 14.0100%
- **C.17 - Yield as of Reporting Date:** 4.5200%
- **C.11 - Maturity Date (WAM):** 2023-03-28
- **C.12 - Maturity Date (WAL):** 2023-03-28
- **C.13 - Final Legal Maturity Date:** 2023-03-28
- **Characteristics:** C.14 Has Demand Feature? No, C.15 Has Guarantee? No, C.16 Has Enhancement? No, C.22 Is an Illiquid Security? No, C.20 Is a Daily Liquid Asset? Yes, C.21 Is a Weekly Liquid Asset? Yes, C.23 Categorized at Level 3? No

## N-MFP: Signatures

**Registrant:** MainStay Funds Trust

**Date:** 2023-03-03

**By:** /s/Jack Benintende

**Name of Signing Officer:** Jack Benintende

**Title of Signing Officer:** Treasurer