# F/m Current Coupon Mortgage-Backed Securities ETF — new fund registration

RBB FUND, INC. registered 12 new fund series on Form 485APOS, filed 2025-01-15. Featured series: F/m Current Coupon Mortgage-Backed Securities ETF.

## Registration

- Registrant / trust: RBB FUND, INC.
- CIK: 0000831114
- Form: 485APOS
- Filed: 2025-01-15
- State of incorporation: MD
- Accession: 0001398344-25-000706

## Series & classes (12)

| Series | Class | Ticker | New |
| --- | --- | --- | --- |
| [F/m Current Coupon Mortgage-Backed Securities ETF](https://search.stillhousedata.com/fund/S000091530) | F/m Current Coupon Mortgage-Backed ETF | — | Yes |
| [F/m Small Cap Core ETF](https://search.stillhousedata.com/fund/S000091531) | F/m Small Cap Core ETF | FMSC | Yes |
| [F/m Small Cap Growth ETF](https://search.stillhousedata.com/fund/S000091532) | F/m Small Cap Growth ETF | FMSG | Yes |
| [F/m U.S. Treasury 3-Month Bill Institutional ETF](https://search.stillhousedata.com/fund/S000091533) | F/m U.S. Treasury 3-Month Bill Institutional ETF | — | Yes |
| [F/m High Yield 100 ETF](https://search.stillhousedata.com/fund/S000091534) | F/m High Yield 100 ETF | ZTOP | Yes |
| [F/m High Beta High Yield ETF](https://search.stillhousedata.com/fund/S000091535) | F/m High Yield High Beta ETF | — | Yes |
| [F/m High Quality High Yield ETF](https://search.stillhousedata.com/fund/S000091536) | F/m High Yield High Quality ETF | — | Yes |
| [F/m Senior Secured High Yield ETF](https://search.stillhousedata.com/fund/S000091537) | F/m High Yield Senior Secured ETF | — | Yes |
| [F/m Short Duration Quality High Yield ETF](https://search.stillhousedata.com/fund/S000091538) | F/m High Yield Short Duration Quality ETF | — | Yes |
| [F/m Long-Term Treasury Inflation-Protected Security (TIPS) ETF](https://search.stillhousedata.com/fund/S000091539) | F/m Leveraged U.S. Treasury 3-Month Bill ETF | RTHY | Yes |
| [F/m SMID Equity ETF](https://search.stillhousedata.com/fund/S000091540) | F/m SMID Equity ETF | FMSM | Yes |
| [F/m Callable Tax-Free Municipal ETF](https://search.stillhousedata.com/fund/S000091541) | F/m Short Duration High Coupon Tax-Free Municipal ETF | ZMUN | Yes |

## 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 — 2025-10-31](https://search.stillhousedata.com/launch/0001398344-25-020131)
- [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)

## More

- [Registrant profile: RBB FUND, INC.](https://search.stillhousedata.com/registrant/831114)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/launch/0001398344-25-000706.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.