# EDGAR Filing Document

**Accession Number:** 0001758583
**File Stem:** 0000910472-25-000439
**Filing Date:** 2025-8
**Character Count:** 5095
**Document Hash:** e8f1e8764b231ca69f647ea576a7d540
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000910472-25-000439.hdr.sgml**: 20250828

**ACCESSION NUMBER**: 0000910472-25-000439

**CONFORMED SUBMISSION TYPE**: NPORT-P

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20250630

**FILED AS OF DATE**: 20250828

**DATE AS OF CHANGE**: 20250828

**PERIOD START**: 20251231

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Arca U.S. Treasury Fund
- **CENTRAL INDEX KEY:** 0001758583

**ORGANIZATION NAME:**
- **EIN:** 832441527
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** NPORT-P
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-23392
- **FILM NUMBER:** 251274549

**BUSINESS ADDRESS:**
- **STREET 1:** 4151 REDWOOD AVENUE
- **STREET 2:** SUITE 206
- **CITY:** LOS ANGELES
- **STATE:** CA
- **ZIP:** 90066
- **BUSINESS PHONE:** 4242898066

**MAIL ADDRESS:**
- **STREET 1:** 4151 REDWOOD AVENUE
- **STREET 2:** SUITE 206
- **CITY:** LOS ANGELES
- **STATE:** CA
- **ZIP:** 90066

## Form NPORT-P: Monthly Portfolio Investments Report

### NPORT-P: Part A: General Information

**Item A.1. Information about the Registrant.**

- **a. Name of Registrant:** Arca U.S. Treasury Fund

- **b. Investment Company Act file number:** 811-23392

- **c. CIK number of Registrant:** 0001758583

- **d. LEI of Registrant:** 5493003T15791YSVP032

- **e. Address and telephone number of Registrant.**

  - **Street Address 1:** 4151 Redwood Avenue

  - **City:** Los Angeles

  - **State:** CA

  - **Foreign country:** US

  - **Zip / Postal Code:** 90066

  - **Telephone number:** 424-289-8066

**Item A.2. Information about the Series.**

- **a. Name of Series:** Arca US Treasury Fund

- **c. LEI of Series:** 5493003T15791YSVP032

**Item A.3. Reporting period.**

- **a. Date of fiscal year-end:** 2025-12-31

- **b. Date as of which information is reported:** 2025-06-30

**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:** $809010.48

**Total Liabilities:** $374944.71

**Net Assets:** $434065.77

**Currency Risk Metrics (dv01):**

- 

**Credit Spread Risk - Investment Grade (dv01):**

- **3-Month:** 0.00000000 | **1-Year:** 0.00000000 | **5-Year:** 0.00000000 | **10-Year:** 0.00000000 | **30-Year:** 0.00000000

**Credit Spread Risk - Non-Investment Grade (dv01):**

- **3-Month:** 0.00000000 | **1-Year:** 0.00000000 | **5-Year:** 0.00000000 | **10-Year:** 0.00000000 | **30-Year:** 0.00000000

**Monthly Return Information**

| Class        | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID N/A | 0.00%                | 1.00%                | 0.04%                |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $0.00                    | $191.01                                    |
| Month 2  | $0.00                    | $-518.71                                   |
| Month 3  | $0.00                    | $91.65                                     |

### 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   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| United States Treasury Bills     | B 12/26/25    | CUSIP: 912797NU7<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |    121000 | PA      | $118541.83    | 27.31%            | 2025-12-26      | Fixed         | 0.00%                 | No            |                  2 | On Loan: No      |
| United States Treasury Bills     | B 10/02/25    | CUSIP: 912797MS3<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |    150000 | PA      | $148364.94    | 34.18%            | 2025-10-02      | Fixed         | 0.00%                 | No            |                  2 | On Loan: No      |
| United States Treasury Bills     | B 03/19/26    | CUSIP: 912797PV3<br>LEI: 254900HROIFWPRGM1V77 | Long             | DBT              | UST               | US        |    160000 | PA      | $155483.54    | 35.82%            | 2026-03-19      | Fixed         | 0.00%                 | No            |                  2 | On Loan: No      |
| Fidelity Colchester Street Trust | FID-TRSY PT-I | CUSIP: 316175504<br>LEI: 549300SHPEJB1OPRCV46 | Long             | STIV             | RF                | US        |     86001 | PA      | $86001.18     | 19.81%            |  |  |  | No            |                  1 | On Loan: No      |

### Signature

**Date Signed:** 2025-07-28

**Name of Applicant:** Arca U.S. Treasury Fund

**Signature:** Vance Sanders

**Name of Signer:** Vance Sanders

**Title:** Treasurer