# 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 912828S50) tracked across SEC portfolio filings. 4 registered fund positions totaling $3.1B via N-PORT as of 2026-05-31; 14 money-market funds via N-MFP.

## Summary

- Issuer: United States Treasury Inflation Indexed Bonds
- Class: TSY INFL IX N/B
- CUSIP: 912828S50
- Asset category: SN
- 13F holders: 0
- N-PORT fund positions: 4
- N-PORT value: $3.1B
- N-PORT report: 2026-05-31
- N-MFP funds: 14

## 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 | $2.8B | 422.59% |
| [American Funds Inflation Linked Bond Fund](https://search.stillhousedata.com/fund/S000039115) | American Funds Inflation Linked Bond Fund | $265.0M | 200.91% |
| [VP Inflation Protection Fund](https://search.stillhousedata.com/fund/S000006680) | American Century Variable Portfolios II, Inc. | $9.3M | 166.29% |
| [TACTICAL MULTI-PURPOSE FUND](https://search.stillhousedata.com/fund/S000055915) | Unified Series Trust | $24K | 8637.57% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/912828S50.md)
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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.