# T. ROWE PRICE INDEX TRUST, INC.

T. ROWE PRICE INDEX TRUST, INC. (CIK 858581) is an SEC-registered fund company with 6 reporting fund series and $42.3B in net assets as of 2026-05-31.

## Registrant

- CIK: 858581
- File number: 811-05986
- LEI: 549300DT5TB0WREU3681
- Address: 1307 Point Street, Baltimore, US-MD, 21231
- Phone: 410-345-2000
- Net assets: $42.3B
- Total assets: $42.4B
- Fund series: 6
- Latest report: 2026-05-31

## Fund series (6)

| Series | Net assets |
| --- | --- |
| [T. Rowe Price Equity Index 500 Fund](https://search.stillhousedata.com/fund/S000002089) | $35.0B |
| [T. Rowe Price Total Equity Market Index Fund](https://search.stillhousedata.com/fund/S000002091) | $2.9B |
| [T. Rowe Price U.S. Limited Duration TIPS Index Fund](https://search.stillhousedata.com/fund/S000069930) | $2.7B |
| [T. Rowe Price Extended Equity Market Index Fund](https://search.stillhousedata.com/fund/S000002090) | $1.0B |
| [T. Rowe Price Mid-Cap Index Fund](https://search.stillhousedata.com/fund/S000051326) | $373.5M |
| [T. Rowe Price Small-Cap Index Fund](https://search.stillhousedata.com/fund/S000051327) | $354.5M |

## Largest reported holdings (across all series)

| Holding | Value |
| --- | --- |
| [TIPS](https://search.stillhousedata.com/security/91282CKL4) | $300.5M |
| [TSY INFL IX N/B](https://search.stillhousedata.com/security/91282CNB3) | $268.6M |
| [TIPS](https://search.stillhousedata.com/security/91282CFR7) | $237.7M |
| [TIPS](https://search.stillhousedata.com/security/91282CJH5) | $213.1M |
| [TSY INFL IX N/B](https://search.stillhousedata.com/security/91282CPH8) | $200.8M |
| [TIPS](https://search.stillhousedata.com/security/91282CLV1) | $170.0M |
| [TIPS](https://search.stillhousedata.com/security/91282CGW5) | $155.3M |
| [TIPS](https://search.stillhousedata.com/security/912828ZZ6) | $154.7M |
| [TIPS](https://search.stillhousedata.com/security/91282CBF7) | $132.6M |
| [TIPS](https://search.stillhousedata.com/security/9128287D6) | $128.5M |
| [TIPS](https://search.stillhousedata.com/security/9128285W6) | $107.2M |
| [TIPS](https://search.stillhousedata.com/security/912828Y38) | $106.2M |
| [TIPS](https://search.stillhousedata.com/security/9128283R9) | $99.5M |
| [TIPS](https://search.stillhousedata.com/security/9128282L3) | $83.0M |
| [TIPS](https://search.stillhousedata.com/security/91282CQP9) | $81.9M |

## More

- [CIK 858581 on SEC EDGAR (source of record)](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=858581&type=&dateb=&owner=include&count=40)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/registrant/858581.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.