# X-Square Series Trust

X-Square Series Trust (CIK 1901443) is an SEC-registered fund company with 1 reporting fund series and $4.5M in net assets as of 2026-03-31.

## Registrant

- CIK: 1901443
- File number: 811-23769
- LEI: 549300BOIDL43A72WY95
- Address: 90 CARR 165 Suite 803, Guaynabo, US-PR, 00968
- Phone: 7872821621
- Net assets: $4.5M
- Total assets: $4.5M
- Fund series: 1
- Latest report: 2026-03-31

## Fund series (1)

| Series | Net assets |
| --- | --- |
| [X-Square Municipal Income ETF](https://search.stillhousedata.com/fund/S000075551) | $4.5M |

## Largest reported holdings (across all series)

| Holding | Value |
| --- | --- |
| [Puerto Rico Sales Tax Fing Corp Sales Tax Revenue](https://search.stillhousedata.com/security/74529JRL1) | $1.6M |
| [Puerto Rico Cmwlth](https://search.stillhousedata.com/security/74514L3L9) | $1.2M |
| [Puerto Rico Sales Tax Fing Corp Sales Tax Revenue](https://search.stillhousedata.com/security/74529JRH0) | $888K |
| [Matching Fund Spl Purpose Securitiztn Corp](https://search.stillhousedata.com/security/57665NAG0) | $865K |
| [Puerto Rico Cmwlth](https://search.stillhousedata.com/security/74514L3M7) | $814K |
| [Puerto Rico Cmwlth](https://search.stillhousedata.com/security/74514L3G0) | $687K |
| [Puerto Rico Cmwlth Aqueduct & Swr Auth Revenue](https://search.stillhousedata.com/security/745160SJ1) | $550K |
| [Puerto Rico Cmwlth](https://search.stillhousedata.com/security/74514L3J4) | $544K |
| [Puerto Rico Cmwlth Aqueduct & Swr Auth Revenue](https://search.stillhousedata.com/security/745160UD1) | $518K |
| [Puerto Rico Cmwlth Aqueduct & Swr Auth Revenue](https://search.stillhousedata.com/security/745160TP6) | $516K |
| [Puerto Rico Cmwlth Aqueduct & Swr Auth Revenue](https://search.stillhousedata.com/security/745160TT8) | $473K |
| [Guam Govt Business Privilege Tax Revenue](https://search.stillhousedata.com/security/40065NCQ8) | $178K |
| [Puerto Rico Cmwlth](https://search.stillhousedata.com/security/74514L3N5) | $33K |
| [Blackrock Liquidity Funds Municash](https://search.stillhousedata.com/security/09248U841) | $0 |

## More

- [CIK 1901443 on SEC EDGAR (source of record)](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1901443&type=&dateb=&owner=include&count=40)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/registrant/1901443.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

---

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.