# EDGAR Filing Document

**Accession Number:** 0001742912
**File Stem:** 0001999371-25-018119
**Filing Date:** 2025-11
**Character Count:** 4822
**Document Hash:** 619718dd490f5bf7eb4ec61ef708c0fb
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001999371-25-018119.hdr.sgml**: 20251119

**ACCESSION NUMBER**: 0001999371-25-018119

**CONFORMED SUBMISSION TYPE**: 497

**PUBLIC DOCUMENT COUNT**: 15

**FILED AS OF DATE**: 20251119

**DATE AS OF CHANGE**: 20251119

**EFFECTIVENESS DATE**: 20251119

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Tidal Trust I
- **CENTRAL INDEX KEY:** 0001742912

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 497
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-227298
- **FILM NUMBER:** 251496715

**BUSINESS ADDRESS:**
- **STREET 1:** 234 WEST FLORIDA STREET, SUITE 203
- **CITY:** MILWAUKEE,
- **STATE:** WI
- **ZIP:** 53204
- **BUSINESS PHONE:** 844-986-7676

**MAIL ADDRESS:**
- **STREET 1:** 234 WEST FLORIDA STREET, SUITE 203
- **CITY:** MILWAUKEE,
- **STATE:** WI
- **ZIP:** 53204

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Tidal ETF Trust
- **DATE OF NAME CHANGE:** 20180606

## Series and Classes Contracts Data

### American Customer Satisfaction ETF (Series ID: S000071844)

---

|  |  |  |
|:---|:---|:---|
| Class Name                         | Ticker Symbol | Class ID   |
| American Customer Satisfaction ETF | ACSI          | C000227368 |

---

## Series and Classes Contracts Data

### American Customer Satisfaction ETF (Series ID: S000071844)

| Class ID   | Class Name                         | Ticker Symbol   |
|:---|:---|:---|
| C000227368 | American Customer Satisfaction ETF | ACSI            |

?xml version='1.0' encoding='ASCII'?

Filed pursuant to Rule 497(e)

Registration Nos. 333-227298; 811-23377

---

| | |
|:---|:---|
| **ACSI** | **American Customer Satisfaction ETF** |
|  | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;***listed on Cboe BZX Exchange, Inc.*** |

---

**November 19, 2025**

**Supplement to the Summary Prospectus and Prospectus, each dated January 28, 2025, as previously supplemented**

**Important Notice Regarding Change in Investment Policy**

The purpose of this supplement is to provide notice of a change to the 80% investment policy (the "80% policy") for the American Customer Satisfaction ETF (the "Fund"), a series of Tidal Trust I (the "Trust"). The Board of Trustees of the Trust has approved the 80% policy change to ensure the Fund complies with amendments to Rule 35d-1 under the Investment Company Act of 1940, as amended. The 80% policy change, as set forth herein, will not result in any change in how the Fund is currently managed. The new 80% policy is consistent with the Fund's current investment objective and principal investment strategies. The change in the Fund's 80% policy will take effect on or about January 28, 2026.

The Fund's current and new 80% policies are as follows:

---

| | |
|:---|:---|
| &nbsp;&nbsp;**Current 80% Policy** | &nbsp;&nbsp;**New 80% Policy <br> (effective on or about January 28, 2026)** |
| &nbsp;&nbsp;Under normal circumstances, at least 80% of the Fund's net assets, plus borrowings for investment purposes, will be invested in investments that are tied economically to the United States. | &nbsp;&nbsp;Under normal circumstances, at least 80% of the Fund's net assets, plus borrowings for investment purposes, will be invested in securities of Index Companies (as defined in the Prospectus) that exhibit high customer satisfaction characteristics and are tied economically to the United States. |

---

In addition, effective on or about January 28, 2026, the second paragraph of the section titled "*Fund Summary - Principal Investment Strategy* - *American Customer Satisfaction Investable Index"* is amended and restated as follows:

"Construction of the Index begins with over 400 ACSI Companies across 46 industries and 10 economic sectors. The initial universe is then screened to eliminate companies whose stock is not principally listed on a U.S. exchange, whose market capitalization is less than $1 billion, or for which the Customer Satisfaction Data is statistically insignificant. The Index is comprised of ACSI Companies in the 25 industries (as classified by the Customer Satisfaction Data) with the highest customer retention. Generally, the company(ies) with the highest ACSI Score (described below) in each such industry will be included in the Index and one to three ACSI Companies from each such industry are included in the Index based on the number of ACSI Companies in a given industry and the ACSI Score ranking (the "Index Companies"). Each Index Company exhibits high customer satisfaction characteristics as reflected in the ACSI Score rankings. The Index will generally be comprised of 25 to 35 companies at the time of each rebalance of the Index."

**Please retain this Supplement for future reference.**