# State Street Balanced Index Fund — new fund registration

STATE STREET INSTITUTIONAL INVESTMENT TRUST registered 1 new fund series on Form 485APOS, filed 2023-08-11. Featured series: State Street Balanced Index Fund.

## Registration

- Registrant / trust: STATE STREET INSTITUTIONAL INVESTMENT TRUST
- CIK: 0001107414
- Form: 485APOS
- Filed: 2023-08-11
- State of incorporation: MA
- Accession: 0001193125-23-210375
- Reported net assets: $583.8M

## Series & classes (1)

| Series | Class | Ticker | New |
| --- | --- | --- | --- |
| [State Street Balanced Index Fund](https://search.stillhousedata.com/fund/S000082802) | Class K | SSBIX | Yes |

## Fees (from the effective prospectus)

- 12b-1 fee: 0.00%
- Gross expense ratio: 0.15%
- Management fee: 0.05%
- Net expense ratio: 0.05%
- Other expenses: 0.09%

## Investment objective

With 60% of its assets, the State Street Balanced Index Fund (the Fund) seeks to track the performance of a benchmark that measures the investment return of the overall U.S. stock market. With 40% of its assets, the Fund seeks to track the performance of a benchmark that measures the U.S. dollar denominated investment grade fixed-rate taxable bond market.

## Advisers

- [SSGA Funds Management, Inc. (Advisor)](https://search.stillhousedata.com/firm/111242)

## Other filings by this registrant (15)

- [485APOS — 2026-07-01](https://search.stillhousedata.com/launch/0001193125-26-291811)
- [485APOS — 2026-04-10](https://search.stillhousedata.com/launch/0001193125-26-151377)
- [485APOS — 2025-11-21 (5 new series)](https://search.stillhousedata.com/launch/0001193125-25-290916)
- [485APOS — 2025-11-14 (2 new series)](https://search.stillhousedata.com/launch/0001193125-25-282942)
- [485APOS — 2025-10-20 (1 new series)](https://search.stillhousedata.com/launch/0001193125-25-243706)
- [485APOS — 2025-04-15](https://search.stillhousedata.com/launch/0001193125-25-081544)
- [485APOS — 2025-02-28](https://search.stillhousedata.com/launch/0001193125-25-042596)
- [485APOS — 2024-06-28 (3 new series)](https://search.stillhousedata.com/launch/0001193125-24-171946)
- [485APOS — 2024-05-23 (3 new series)](https://search.stillhousedata.com/launch/0001193125-24-145807)
- [485APOS — 2021-10-08 (1 new series)](https://search.stillhousedata.com/launch/0001193125-21-295346)
- [485APOS — 2021-09-02](https://search.stillhousedata.com/launch/0001193125-21-264586)
- [485APOS — 2021-08-27](https://search.stillhousedata.com/launch/0001193125-21-259307)

## More

- [Registrant profile: STATE STREET INSTITUTIONAL INVESTMENT TRUST](https://search.stillhousedata.com/registrant/1107414)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/launch/0001193125-23-210375.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.