# SIIT EXTENDED MARKET INDEX FUND

SIIT EXTENDED MARKET INDEX FUND is a registered fund series of SEI INSTITUTIONAL INVESTMENTS TRUST (series S000035814). Net assets $1.3B as of 2026-05-31. Index fund.

## Profile

- Series ID: S000035814
- Registrant: SEI INSTITUTIONAL INVESTMENTS TRUST
- LEI: 5493008OSB7DV1RIE644
- Net assets: $1.3B
- Total assets: $1.3B
- As of: 2026-05-31
- Type: Index

## Advisers

- [SEI Investments Management Corporation (Advisor)](https://search.stillhousedata.com/firm/105146)
- [SSGA FUNDS MANAGEMENT, INC. (Subadvisor)](https://search.stillhousedata.com/firm/111242)

## Top holdings (200 reported)

_Showing 15 of 200 holdings by value._

| Holding | Ticker | Value | % of fund |
| --- | --- | --- | --- |
| [MARVELL TECHNOLOGY, INC.](https://search.stillhousedata.com/security/573874104) | — | $27.1M | 206.22% |
| [SNOWFLAKE INC.](https://search.stillhousedata.com/security/833445109) | — | $13.2M | 100.21% |
| [SPOTIFY TECHNOLOGY S.A.](https://search.stillhousedata.com/security/L8681T102) | — | $11.9M | 90.81% |
| [CLOUDFLARE, INC.](https://search.stillhousedata.com/security/18915M107) | — | $11.8M | 89.86% |
| [ROCKET LAB CORPORATION](https://search.stillhousedata.com/security/773121108) | — | $10.9M | 83.25% |
| BLOOM ENERGY CORPORATION | — | $9.6M | 73.13% |
| [FLEX LTD.](https://search.stillhousedata.com/security/Y2573F102) | — | $8.6M | 65.67% |
| E-MINI RUSS 2000  JUN26 PHYSICAL INDEX FUTURE. | RTYM26 | $7.7M | 59.01% |
| [STRATEGY INC](https://search.stillhousedata.com/security/594972408) | — | $7.7M | 58.81% |
| [ANGLOGOLD ASHANTI PLC](https://search.stillhousedata.com/security/G0378L100) | — | $7.6M | 57.74% |
| [SEI DAILY INCOME TRUST GOVERNMENT FUND (#36)](https://search.stillhousedata.com/security/783965593) | — | $7.5M | 57.24% |
| [CHENIERE ENERGY, INC.](https://search.stillhousedata.com/security/16411R208) | — | $7.4M | 56.68% |
| [Astera Labs, Inc](https://search.stillhousedata.com/security/04626A103) | — | $6.9M | 52.21% |
| [Nu Holdings Ltd.](https://search.stillhousedata.com/security/G6683N103) | — | $6.8M | 51.93% |
| [FERGUSON ENTERPRISES INC.](https://search.stillhousedata.com/security/31488V107) | — | $6.7M | 51.10% |

## Net asset history

| Report date | Net assets |
| --- | --- |
| 2026-05-31 | $1.3B |
| 2026-02-28 | $1.2B |
| 2025-11-30 | $1.2B |
| 2025-08-31 | $1.2B |
| 2025-05-31 | $1.1B |
| 2025-02-28 | $1.1B |
| 2024-11-30 | $1.2B |
| 2024-08-31 | $1.2B |

## More

- [Registrant: SEI INSTITUTIONAL INVESTMENTS TRUST](https://search.stillhousedata.com/registrant/939934)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/fund/S000035814.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.