# Portfolio overlap — TDTT vs FSTZX

Comparing **FlexShares iBoxx 3-Year Target Duration TIPS Index Fund** (2026-01-31) and **Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund** (2026-03-31).

- Shared positions: 22
- FlexShares iBoxx 3-Year Target Duration TIPS Index Fund covered by Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund: 0.6650464968060873968000291701
- Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund covered by FlexShares iBoxx 3-Year Target Duration TIPS Index Fund: 0.6650464968060873968000291699

## FlexShares iBoxx 3-Year Target Duration TIPS Index Fund — top positions

| Security | Weight | Shared |
|----------|--------|--------|
| U.S. TREASURY INFLATION-PROTECTED SECURITIES .875% 01/15/2029 | 0.122837 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 2.375% 10/15/2028 | 0.122800 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 3-7/8% 04/15/29 | 0.110147 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 2-1/2% 01/15/29 | 0.058985 | ✓ |
| U.S. Treasury Notes | 0.038090 | ✓ |
| U.S. Treasury Notes | 0.036342 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 07/15/2031 | 0.035476 |  |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES .125 07/15/2030 | 0.034794 | ✓ |
| U.S. Treasury Inflation-Protected Security 0.375%, due 01/15/27 | 0.034158 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/2% 01/15/2028 | 0.034093 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 01/15/2031 | 0.034090 | ✓ |
| U.S. Treasury Notes 0.125%, Due 1/15/2030 | 0.033497 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES .25%  07/15/29 | 0.033194 | ✓ |
| U.S. Treasury Inflation-Protected Indexed Notes | 0.032967 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/8% 07/15/2027 | 0.032884 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/4% 07/15/2028 | 0.031792 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 04/15/2027 | 0.030247 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 1-5/8% 10/15/27 | 0.030055 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.250 04/15/2028 | 0.029325 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 3-5/8% 04/15/28 | 0.023941 | ✓ |
| U.S. Treasury Inflation-Linked Notes | 0.018828 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 2-3/8% 01/15/27 | 0.018050 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 1-3/4% 01/15/28 | 0.016539 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 3-3/8% 04/15/32 | 0.006871 |  |

## Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund — top positions

| Security | Weight | Shared |
|----------|--------|--------|
| U.S. Treasury Notes | 0.054649 | ✓ |
| U.S. Treasury Inflation-Linked Notes | 0.052873 | ✓ |
| U.S. Treasury Inflation-Protected Indexed Notes | 0.050856 | ✓ |
| U.S. Treasury Notes | 0.050622 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.250 04/15/2028 | 0.050055 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 2.375% 10/15/2028 | 0.049406 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES .125 07/15/2030 | 0.048753 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 01/15/2031 | 0.046966 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 04/15/2027 | 0.046884 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 1-5/8% 10/15/27 | 0.045558 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 10/15/2026 | 0.044371 |  |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/2% 01/15/2028 | 0.043667 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/8% 07/15/2027 | 0.043610 | ✓ |
| U.S. Treasury Notes 0.125%, Due 1/15/2030 | 0.042149 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES .25%  07/15/29 | 0.037978 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/4% 07/15/2028 | 0.036078 | ✓ |
| U.S. Treasury Inflation-Protected Security 0.375%, due 01/15/27 | 0.035606 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8%  07/15/2026 | 0.033369 |  |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES .875% 01/15/2029 | 0.032476 | ✓ |
| U.S. Treasury Notes | 0.029597 |  |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 3-7/8% 04/15/29 | 0.026654 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 2-3/8% 01/15/27 | 0.024558 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 3-5/8% 04/15/28 | 0.019953 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 1-3/4% 01/15/28 | 0.019276 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 2-1/2% 01/15/29 | 0.017615 | ✓ |
| Fidelity Cash Central Fund | 0.016422 |  |


## Sources

- N-PORT (fund A) — accession `0002071691-26-006217` (as of 2026-01-31)
  <https://www.sec.gov/Archives/edgar/data/1491978/000207169126006217/0002071691-26-006217-index.htm>
- N-PORT (fund B) — accession `0000035402-26-003404` (as of 2026-03-31)
  <https://www.sec.gov/Archives/edgar/data/35315/000003540226003404/0000035402-26-003404-index.htm>

---

_Informational only — not investment advice. FundWatcher presents publicly available data and makes no recommendation to buy or sell any security. Verify all figures against the source filing before relying on them._

_Data sourced from U.S. SEC EDGAR filings (Forms N-PORT, N-CEN, and prospectus Risk/Return summaries). FundWatcher is not affiliated with the SEC._

_Use of this data is subject to the FundWatcher Terms of Service. Information may be used only for personal, non-commercial research and may not be redistributed. See <https://fundwatcher.app/terms/>_