# First Trust Municipal High Income ETF

First Trust Municipal High Income ETF is a ETF series of First Trust Exchange-Traded Fund III (series S000051606). Net assets $950.4M as of 2026-04-30.

## Profile

- Series ID: S000051606
- Registrant: First Trust Exchange-Traded Fund III
- LEI: 549300B5O1Z4DSDEG514
- Net assets: $950.4M
- Total assets: $951.9M
- As of: 2026-04-30
- Type: ETF

## Advisers

- [First Trust Advisors L.P. (Advisor)](https://search.stillhousedata.com/firm/107027)

## Top holdings (200 reported)

_Showing 15 of 200 holdings by value._

| Holding | Ticker | Value | % of fund |
| --- | --- | --- | --- |
| [CHICAGO ILL O HARE INTL ARPT](https://search.stillhousedata.com/security/167591AD8) | — | $5.8M | 61.43% |
| [PUERTO RICO SALES TAX FINANCING CORP](https://search.stillhousedata.com/security/74529JRJ6) | — | $5.8M | 61.17% |
| [PUERTO RICO AQUEDUCT AND SEWER AUTHORITY](https://search.stillhousedata.com/security/745160SJ1) | — | $5.7M | 60.15% |
| [MOBILE COUNTY INDUSTRIAL DEVELOPMENT AUTHORITY (AL)](https://search.stillhousedata.com/security/60733UAB7) | — | $5.6M | 58.97% |
| [MOBILE INDUSTRIAL DEVELOPMENT BOARD (AL)](https://search.stillhousedata.com/security/607167DY6) | — | $5.0M | 52.61% |
| [ST. LOUIS COUNTY INDUSTRIAL DEVELOPMENT AUTHORITY (MO)](https://search.stillhousedata.com/security/791524CE9) | — | $4.4M | 45.87% |
| [PUBLIC FINANCE AUTHORITY (WI)](https://search.stillhousedata.com/security/74448EAA2) | — | $4.1M | 43.46% |
| [SPRING VY CMNTY INFRASTRUCTURE DIST NO 1 IDAHO](https://search.stillhousedata.com/security/850072AB5) | — | $4.1M | 43.26% |
| [PUERTO RICO, COMMONWEALTH OF](https://search.stillhousedata.com/security/74514L3N5) | — | $4.1M | 42.97% |
| [ARKANSAS DEVELOPMENT FINANCE AUTHORITY (AR)](https://search.stillhousedata.com/security/04110FAA3) | — | $4.1M | 42.63% |
| [COLUMBUS REGIONAL AIRPORT AUTHORITY (OH)](https://search.stillhousedata.com/security/199546DC3) | — | $4.0M | 41.66% |
| [MAIN STREET NATURAL GAS INC (GA)](https://search.stillhousedata.com/security/56035DFK3) | — | $3.9M | 40.79% |
| [CHARLOTTE COUNTY INDUSTRIAL DEVELOPMENT AUTHORITY (VA)](https://search.stillhousedata.com/security/16080TAG0) | — | $3.9M | 40.72% |
| [AMERICAN AIRLINES INC](https://search.stillhousedata.com/security/650116CV6) | — | $3.8M | 40.26% |
| [MARYLAND ST HEALTH & HIGHER EDL FACS AUTH](https://search.stillhousedata.com/security/57421CKA1) | — | $3.8M | 40.11% |

## Net asset history

| Report date | Net assets |
| --- | --- |
| 2026-04-30 | $950.4M |
| 2026-01-31 | $905.6M |
| 2025-10-31 | $844.7M |
| 2025-07-31 | $743.2M |
| 2025-04-30 | $740.7M |
| 2025-01-31 | $774.6M |
| 2024-10-31 | $753.1M |
| 2024-07-31 | $645.2M |

## More

- [Registrant: First Trust Exchange-Traded Fund III](https://search.stillhousedata.com/registrant/1424212)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/fund/S000051606.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.