# VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND

VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND is a registered fund series of VANGUARD INSTITUTIONAL INDEX FUNDS (series S000002855). Net assets $30.3B as of 2026-03-31. Index fund.

## Profile

- Series ID: S000002855
- Registrant: VANGUARD INSTITUTIONAL INDEX FUNDS
- LEI: OI9CNOE85L24I2YWT109
- Net assets: $30.3B
- Total assets: $30.3B
- 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) | — | $1.9B | 640.27% |
| [Apple Inc](https://search.stillhousedata.com/security/037833100) | — | $1.8B | 592.52% |
| [Microsoft Corp](https://search.stillhousedata.com/security/594918104) | — | $1.3B | 437.13% |
| [Amazon.com Inc](https://search.stillhousedata.com/security/023135106) | — | $969.0M | 320.03% |
| [Alphabet Inc](https://search.stillhousedata.com/security/02079K305) | — | $805.2M | 265.94% |
| [Broadcom Inc](https://search.stillhousedata.com/security/11135F101) | — | $706.7M | 233.39% |
| [Alphabet Inc](https://search.stillhousedata.com/security/02079K107) | — | $639.5M | 211.21% |
| [Meta Platforms Inc](https://search.stillhousedata.com/security/30303M102) | — | $602.7M | 199.03% |
| [Tesla Inc](https://search.stillhousedata.com/security/88160R101) | — | $503.9M | 166.43% |
| [Berkshire Hathaway Inc](https://search.stillhousedata.com/security/084670702) | — | $401.0M | 132.42% |
| [Eli Lilly & Co](https://search.stillhousedata.com/security/532457108) | — | $376.1M | 124.22% |
| [JPMorgan Chase & Co](https://search.stillhousedata.com/security/46625H100) | — | $360.3M | 118.98% |
| [Exxon Mobil Corp](https://search.stillhousedata.com/security/30231G102) | — | $340.4M | 112.41% |
| [Johnson & Johnson](https://search.stillhousedata.com/security/478160104) | — | $283.6M | 93.67% |
| [Walmart Inc](https://search.stillhousedata.com/security/931142103) | — | $262.4M | 86.67% |

## Net asset history

| Report date | Net assets |
| --- | --- |
| 2026-03-31 | $30.3B |
| 2025-12-31 | $31.3B |
| 2025-09-30 | $30.9B |
| 2025-06-30 | $30.2B |
| 2025-03-31 | $27.1B |
| 2024-12-31 | $28.9B |
| 2024-09-30 | $31.5B |
| 2024-06-30 | $32.1B |

## More

- [Registrant: VANGUARD INSTITUTIONAL INDEX FUNDS](https://search.stillhousedata.com/registrant/862084)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/fund/S000002855.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.