# F/m Opportunistic Income ETF — new fund registration

RBB FUND, INC. registered fund series on Form 485APOS, filed 2025-10-31. Featured series: F/m Opportunistic Income ETF.

## Registration

- Registrant / trust: RBB FUND, INC.
- CIK: 0000831114
- Form: 485APOS
- Filed: 2025-10-31
- State of incorporation: MD
- Accession: 0001398344-25-020131
- Reported net assets: $45.7M

## Series & classes (1)

| Series | Class | Ticker | New |
| --- | --- | --- | --- |
| [F/m Opportunistic Income ETF](https://search.stillhousedata.com/fund/S000081704) | F/m Opportunistic Income ETF | XFIX | — |

## Fees (from the effective prospectus)

- 12b-1 fee: 0.00%
- Gross expense ratio: 0.43%
- Management fee: 0.39%
- Other expenses: 0.00%

## Investment objective

The investment objective of the F/m Opportunistic Income ETF (the Fund) is to provide investors with attractive income opportunities by identifying undervalued and opportunistic sectors and securities in the U.S. fixed income markets, while typically limiting duration and averaging an investment-grade credit quality.

## Advisers

- [Fm Investments LLC (Advisor)](https://search.stillhousedata.com/firm/304405)

## Other filings by this registrant (15)

- [485APOS — 2026-05-12 (5 new series)](https://search.stillhousedata.com/launch/0001398344-26-009011)
- [485APOS — 2026-05-04](https://search.stillhousedata.com/launch/0001398344-26-008200)
- [485APOS — 2026-03-27 (4 new series)](https://search.stillhousedata.com/launch/0001398344-26-005777)
- [485APOS — 2025-11-21](https://search.stillhousedata.com/launch/0001398344-25-021174)
- [485APOS — 2025-11-21](https://search.stillhousedata.com/launch/0001398344-25-021178)
- [485APOS — 2025-09-26 (3 new series)](https://search.stillhousedata.com/launch/0001398344-25-018545)
- [485APOS — 2025-09-23 (15 new series)](https://search.stillhousedata.com/launch/0001398344-25-018425)
- [485APOS — 2025-07-28](https://search.stillhousedata.com/launch/0001398344-25-013910)
- [485APOS — 2025-05-28 (6 new series)](https://search.stillhousedata.com/launch/0001398344-25-010173)
- [485APOS — 2025-05-02 (9 new series)](https://search.stillhousedata.com/launch/0001398344-25-008600)
- [485APOS — 2025-04-16](https://search.stillhousedata.com/launch/0001398344-25-007222)
- [485APOS — 2025-01-15 (12 new series)](https://search.stillhousedata.com/launch/0001398344-25-000706)

## More

- [Registrant profile: RBB FUND, INC.](https://search.stillhousedata.com/registrant/831114)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/launch/0001398344-25-020131.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.