# United States Treasury Inflation Indexed Bonds TSY INFL IX N/B

United States Treasury Inflation Indexed Bonds TSY INFL IX N/B is a security (CUSIP 912828Y38) tracked across SEC portfolio filings. 10 registered fund positions totaling $3.0B via N-PORT as of 2026-05-31.

## Summary

- Issuer: United States Treasury Inflation Indexed Bonds
- Class: TSY INFL IX N/B
- CUSIP: 912828Y38
- Asset category: SN
- 13F holders: 0
- N-PORT fund positions: 10
- N-PORT value: $3.0B
- N-PORT report: 2026-05-31

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [VANGUARD SHORT-TERM INFLATION-PROTECTED SECURITIES INDEX FUND](https://search.stillhousedata.com/fund/S000038501) | VANGUARD MALVERN FUNDS | $2.5B | 376.93% |
| [T. Rowe Price Limited-Duration Inflation Focused Bond Fund, Inc.](https://search.stillhousedata.com/fund/S000013369) | T. ROWE PRICE LIMITED-DURATION INFLATION FOCUSED BOND FUND, INC. | $333.8M | 325.86% |
| [T. Rowe Price U.S. Limited Duration TIPS Index Fund](https://search.stillhousedata.com/fund/S000069930) | T. ROWE PRICE INDEX TRUST, INC. | $106.2M | 396.61% |
| [Short Duration Inflation Protection Bond Fund](https://search.stillhousedata.com/fund/S000006581) | American Century Investment Trust | $56.2M | 476.42% |
| [Fidelity Inflation-Protected Bond Index Central Fund](https://search.stillhousedata.com/fund/S000036933) | Fidelity Central Investment Portfolios II LLC | $26.0M | 329.19% |
| [Short Duration Inflation-Protected Income Portfolio](https://search.stillhousedata.com/fund/S000077078) | Short Duration Inflation-Protected Income Portfolio | $14.3M | 339.93% |
| [T. Rowe Price Inflation Protected Bond Fund, Inc.](https://search.stillhousedata.com/fund/S000002133) | T. ROWE PRICE INFLATION PROTECTED BOND FUND, INC. | $8.7M | 151.50% |
| [SIMT Multi-Asset Accumulation Fund](https://search.stillhousedata.com/fund/S000035779) | SEI INSTITUTIONAL MANAGED TRUST | $7.0M | 60.79% |
| Nuveen Multi-Asset Income Fund | Nuveen Multi-Asset Income Fund | $407K | 8.88% |
| [T. Rowe Price Global Allocation Fund](https://search.stillhousedata.com/fund/S000040952) | T. ROWE PRICE GLOBAL ALLOCATION FUND, INC. | $151K | 1.76% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/912828Y38.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.