# SIIT S&P 500 INDEX FUND

SIIT S&P 500 INDEX FUND is a registered fund series of SEI INSTITUTIONAL INVESTMENTS TRUST (series S000043383). Net assets $4.6B as of 2026-05-31. Index fund.

## Profile

- Series ID: S000043383
- Registrant: SEI INSTITUTIONAL INVESTMENTS TRUST
- LEI: 549300B5CHVS9BV8KC49
- Net assets: $4.6B
- Total assets: $4.6B
- As of: 2026-05-31
- Type: Index

## Advisers

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

## Top holdings (200 reported)

_Showing 15 of 200 holdings by value._

| Holding | Ticker | Value | % of fund |
| --- | --- | --- | --- |
| [NVIDIA CORPORATION](https://search.stillhousedata.com/security/67066G104) | — | $356.2M | 776.21% |
| APPLE INC. | — | $318.1M | 693.10% |
| [MICROSOFT CORPORATION](https://search.stillhousedata.com/security/594918104) | — | $232.1M | 505.77% |
| AMAZON.COM, INC. | — | $183.6M | 399.99% |
| [ALPHABET INC.](https://search.stillhousedata.com/security/02079K305) | — | $153.7M | 334.99% |
| [BROADCOM INC.](https://search.stillhousedata.com/security/11135F101) | — | $147.1M | 320.44% |
| [ALPHABET INC.](https://search.stillhousedata.com/security/02079K107) | — | $122.2M | 266.32% |
| S&P500 EMINI FUT  JUN26 PHYSICAL INDEX FUTURE. | ESM26 | $103.3M | 225.10% |
| [META PLATFORMS, INC.](https://search.stillhousedata.com/security/30303M102) | — | $96.0M | 209.27% |
| [TESLA, INC.](https://search.stillhousedata.com/security/88160R101) | — | $85.1M | 185.39% |
| [MICRON TECHNOLOGY, INC.](https://search.stillhousedata.com/security/595112103) | — | $75.9M | 165.30% |
| [SEI DAILY INCOME TRUST GOVERNMENT FUND (#36)](https://search.stillhousedata.com/security/783965593) | — | $64.3M | 140.15% |
| [ELI LILLY AND COMPANY](https://search.stillhousedata.com/security/532457108) | — | $60.8M | 132.46% |
| BERKSHIRE HATHAWAY INC. | — | $60.4M | 131.63% |
| ADVANCED MICRO DEVICES, INC. | — | $58.4M | 127.28% |

## Net asset history

| Report date | Net assets |
| --- | --- |
| 2026-05-31 | $4.6B |
| 2026-02-28 | $4.4B |
| 2025-11-30 | $4.5B |
| 2025-08-31 | $4.5B |
| 2025-05-31 | $4.2B |
| 2025-02-28 | $4.3B |
| 2024-11-30 | $4.4B |
| 2024-08-31 | $4.3B |

## More

- [Registrant: SEI INSTITUTIONAL INVESTMENTS TRUST](https://search.stillhousedata.com/registrant/939934)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/fund/S000043383.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.