# MainStay Institutional Bond Fund — new fund registration

MAINSTAY FUNDS registered 2 new fund series on Form 485APOS, filed 2007-06-25. Featured series: MainStay Institutional Bond Fund.

## Registration

- Registrant / trust: MAINSTAY FUNDS
- CIK: 0000787441
- Form: 485APOS
- Filed: 2007-06-25
- State of incorporation: MA
- Accession: 0000950123-07-009180

## Series & classes (2)

| Series | Class | Ticker | New |
| --- | --- | --- | --- |
| [MainStay Institutional Bond Fund](https://search.stillhousedata.com/fund/S000018790) | Class I | — | Yes |
| [MainStay Principal Preservation Fund](https://search.stillhousedata.com/fund/S000018791) | Class I | — | Yes |

## Other filings by this registrant (15)

- [485APOS — 2022-02-25](https://search.stillhousedata.com/launch/0001741773-22-000402)
- [485APOS — 2022-01-11](https://search.stillhousedata.com/launch/0001741773-22-000051)
- [485APOS — 2020-06-26](https://search.stillhousedata.com/launch/0001104659-20-077515)
- [485APOS — 2019-12-18](https://search.stillhousedata.com/launch/0001104659-19-073705)
- [485APOS — 2019-06-21](https://search.stillhousedata.com/launch/0001144204-19-031795)
- [485APOS — 2018-12-14](https://search.stillhousedata.com/launch/0001144204-18-064624)
- [485APOS — 2017-12-22](https://search.stillhousedata.com/launch/0001144204-17-064846)
- [485APOS — 2016-12-23](https://search.stillhousedata.com/launch/0001144204-16-141203)
- [485APOS — 2016-12-22](https://search.stillhousedata.com/launch/0001144204-16-140784)
- [485APOS — 2016-12-19](https://search.stillhousedata.com/launch/0001144204-16-140090)
- [485APOS — 2015-12-17](https://search.stillhousedata.com/launch/0001193125-15-406150)
- [485APOS — 2014-12-29](https://search.stillhousedata.com/launch/0001144204-14-076131)

## More

- [Registrant profile: MAINSTAY FUNDS](https://search.stillhousedata.com/registrant/787441)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/launch/0000950123-07-009180.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.