# VANGUARD INFLATION-PROTECTED SECURITIES FUND

VANGUARD INFLATION-PROTECTED SECURITIES FUND is a registered fund series of VANGUARD BOND INDEX FUNDS (series S000019554). Net assets $27.9B as of 2026-03-31.

## Profile

- Series ID: S000019554
- Registrant: VANGUARD BOND INDEX FUNDS
- LEI: F8K6630RFYVJPTW32U17
- Net assets: $27.9B
- Total assets: $27.9B
- As of: 2026-03-31

## Advisers

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

## Top holdings (150 reported)

_Showing 15 of 150 holdings by value._

| Holding | Ticker | Value | % of fund |
| --- | --- | --- | --- |
| [United States Treasury Inflation Indexed Bonds](https://search.stillhousedata.com/security/91282CML2) | — | $1.1B | 392.85% |
| [United States Treasury Inflation Indexed Bonds](https://search.stillhousedata.com/security/91282CLE9) | — | $1.0B | 369.47% |
| [United States Treasury Inflation Indexed Bonds](https://search.stillhousedata.com/security/91282CJY8) | — | $982.9M | 352.51% |
| [United States Treasury Inflation Indexed Bonds](https://search.stillhousedata.com/security/91282CHP9) | — | $918.4M | 329.39% |
| [United States Treasury Inflation Indexed Bonds](https://search.stillhousedata.com/security/91282CGK1) | — | $916.2M | 328.60% |
| [United States Treasury Inflation Indexed Bonds](https://search.stillhousedata.com/security/91282CEZ0) | — | $913.9M | 327.76% |
| [United States Treasury Inflation Indexed Bonds](https://search.stillhousedata.com/security/91282CKL4) | — | $902.2M | 323.56% |
| [United States Treasury Inflation Indexed Bonds](https://search.stillhousedata.com/security/91282CNB3) | — | $901.4M | 323.31% |
| [United States Treasury Inflation Indexed Bonds](https://search.stillhousedata.com/security/91282CLV1) | — | $884.1M | 317.07% |
| [United States Treasury Inflation Indexed Bonds](https://search.stillhousedata.com/security/91282CJH5) | — | $869.4M | 311.81% |
| [United States Treasury Inflation Indexed Bonds](https://search.stillhousedata.com/security/912828Y38) | — | $866.1M | 310.63% |
| [United States Treasury Inflation Indexed Bonds](https://search.stillhousedata.com/security/91282CDX6) | — | $859.5M | 308.26% |
| [United States Treasury Inflation Indexed Bonds](https://search.stillhousedata.com/security/91282CFR7) | — | $819.2M | 293.81% |
| [United States Treasury Inflation Indexed Bonds](https://search.stillhousedata.com/security/91282CGW5) | — | $817.2M | 293.09% |
| [United States Treasury Inflation Indexed Bonds](https://search.stillhousedata.com/security/91282CEJ6) | — | $800.0M | 286.92% |

## Net asset history

| Report date | Net assets |
| --- | --- |
| 2026-03-31 | $27.9B |
| 2025-12-31 | $27.6B |
| 2025-09-30 | $27.4B |
| 2025-06-30 | $27.0B |
| 2025-03-31 | $27.2B |
| 2024-12-31 | $25.9B |
| 2024-09-30 | $27.2B |
| 2024-06-30 | $26.7B |

## More

- [Registrant: VANGUARD BOND INDEX FUNDS](https://search.stillhousedata.com/registrant/794105)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/fund/S000019554.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.