# VANGUARD INSTITUTIONAL INDEX FUND

VANGUARD INSTITUTIONAL INDEX FUND is a registered fund series of VANGUARD INSTITUTIONAL INDEX FUNDS (series S000002853). Net assets $315.5B as of 2026-03-31. Index fund.

## Profile

- Series ID: S000002853
- Registrant: VANGUARD INSTITUTIONAL INDEX FUNDS
- LEI: 22FEKWGAFY38KJJVTQ65
- Net assets: $315.5B
- Total assets: $315.5B
- As of: 2026-03-31
- Type: Index

## Advisers

- [The Vanguard Group, Inc. (Advisor)](https://search.stillhousedata.com/firm/105958)

## Top holdings (200 reported)

_Showing 15 of 200 holdings by value._

| Holding | Ticker | Value | % of fund |
| --- | --- | --- | --- |
| [NVIDIA Corp](https://search.stillhousedata.com/security/67066G104) | — | $23.9B | 757.47% |
| [Apple Inc](https://search.stillhousedata.com/security/037833100) | — | $21.0B | 665.95% |
| [Microsoft Corp](https://search.stillhousedata.com/security/594918104) | — | $15.5B | 491.30% |
| [Amazon.com Inc](https://search.stillhousedata.com/security/023135106) | — | $11.5B | 363.64% |
| [Alphabet Inc](https://search.stillhousedata.com/security/02079K305) | — | $9.4B | 299.23% |
| [Broadcom Inc](https://search.stillhousedata.com/security/11135F101) | — | $8.3B | 262.29% |
| [Alphabet Inc](https://search.stillhousedata.com/security/02079K107) | — | $7.6B | 239.79% |
| [Meta Platforms Inc](https://search.stillhousedata.com/security/30303M102) | — | $7.1B | 223.66% |
| [Tesla Inc](https://search.stillhousedata.com/security/88160R101) | — | $5.9B | 186.87% |
| [Berkshire Hathaway Inc](https://search.stillhousedata.com/security/084670702) | — | $5.0B | 157.06% |
| [JPMorgan Chase & Co](https://search.stillhousedata.com/security/46625H100) | — | $4.2B | 133.67% |
| [Eli Lilly & Co](https://search.stillhousedata.com/security/532457108) | — | $4.1B | 130.27% |
| [Exxon Mobil Corp](https://search.stillhousedata.com/security/30231G102) | — | $4.0B | 126.72% |
| [Johnson & Johnson](https://search.stillhousedata.com/security/478160104) | — | $3.3B | 105.29% |
| [Walmart Inc](https://search.stillhousedata.com/security/931142103) | — | $3.1B | 97.37% |

## Net asset history

| Report date | Net assets |
| --- | --- |
| 2026-03-31 | $315.5B |
| 2025-12-31 | $335.8B |
| 2025-09-30 | $332.8B |
| 2025-06-30 | $322.0B |
| 2025-03-31 | $293.7B |
| 2024-12-31 | $315.2B |
| 2024-09-30 | $310.1B |
| 2024-06-30 | $297.2B |

## More

- [Registrant: VANGUARD INSTITUTIONAL INDEX FUNDS](https://search.stillhousedata.com/registrant/862084)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/fund/S000002853.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.