# 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 9128287D6) tracked across SEC portfolio filings. 15 registered fund positions totaling $3.5B via N-PORT as of 2026-05-31.

## Summary

- Issuer: United States Treasury Inflation Indexed Bonds
- Class: TSY INFL IX N/B
- CUSIP: 9128287D6
- Asset category: SN
- 13F holders: 0
- N-PORT fund positions: 15
- N-PORT value: $3.5B
- 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 | 375.58% |
| [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. | $547.2M | 534.11% |
| [American Funds Inflation Linked Bond Fund](https://search.stillhousedata.com/fund/S000039115) | American Funds Inflation Linked Bond Fund | $212.5M | 161.10% |
| [T. Rowe Price U.S. Limited Duration TIPS Index Fund](https://search.stillhousedata.com/fund/S000069930) | T. ROWE PRICE INDEX TRUST, INC. | $128.5M | 479.98% |
| [Short Duration Inflation Protection Bond Fund](https://search.stillhousedata.com/fund/S000006581) | American Century Investment Trust | $86.7M | 734.91% |
| [Fidelity Inflation-Protected Bond Index Central Fund](https://search.stillhousedata.com/fund/S000036933) | Fidelity Central Investment Portfolios II LLC | $20.9M | 265.74% |
| [T. Rowe Price Inflation Protected Bond Fund, Inc.](https://search.stillhousedata.com/fund/S000002133) | T. ROWE PRICE INFLATION PROTECTED BOND FUND, INC. | $12.3M | 213.28% |
| [Short Duration Inflation-Protected Income Portfolio](https://search.stillhousedata.com/fund/S000077078) | Short Duration Inflation-Protected Income Portfolio | $11.7M | 279.01% |
| [Bernstein Intermediate Duration Institutional Portfolio](https://search.stillhousedata.com/fund/S000011063) | BERNSTEIN SANFORD C FUND II INC | $10.2M | 119.83% |
| [SIMT Multi-Asset Accumulation Fund](https://search.stillhousedata.com/fund/S000035779) | SEI INSTITUTIONAL MANAGED TRUST | $7.2M | 62.39% |
| [MyDestination 2025 Fund](https://search.stillhousedata.com/fund/S000014478) | GuideStone Funds | $5.0M | 24.15% |
| [T. Rowe Price Global Allocation Fund](https://search.stillhousedata.com/fund/S000040952) | T. ROWE PRICE GLOBAL ALLOCATION FUND, INC. | $738K | 8.61% |
| [Short-Term Government Fund](https://search.stillhousedata.com/fund/S000005970) | American Century Government Income Trust | $495K | 26.25% |
| Nuveen Multi-Asset Income Fund | Nuveen Multi-Asset Income Fund | $278K | 6.07% |
| [PGIM TIPS Fund](https://search.stillhousedata.com/fund/S000055767) | Prudential Investment Portfolios 2 | $269K | 51.57% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/9128287D6.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.