# Portfolio overlap — VIPIX vs PIFPX

Comparing **VANGUARD INFLATION-PROTECTED SECURITIES FUND** (2026-03-31) and **Inflation Protection Fund** (2026-01-31).

- Shared positions: 47
- VANGUARD INFLATION-PROTECTED SECURITIES FUND covered by Inflation Protection Fund: 0.8565834692344707799680251317
- Inflation Protection Fund covered by VANGUARD INFLATION-PROTECTED SECURITIES FUND: 0.8565834692344707799680251317

## VANGUARD INFLATION-PROTECTED SECURITIES FUND — top positions

| Security | Weight | Shared |
|----------|--------|--------|
| U.S. Treasury Inflation-Protected Indexed Notes | 0.039405 | ✓ |
| U.S. Treasury Inflation-Protected Indexed Notes | 0.037060 | ✓ |
| U.S. Treasury Inflation-Protected Notes 1.75%, Due 01/15/2034 | 0.035358 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.375 07/15/33 | 0.033040 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.125% 01/15/2033 | 0.032960 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-5/8% 07/15/2032 | 0.032876 | ✓ |
| U.S. Treasury Notes | 0.032455 | ✓ |
| U.S. Treasury Notes | 0.032429 | ✓ |
| U.S. Treasury Inflation-Protected Indexed Notes | 0.031804 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 2.375% 10/15/2028 | 0.031276 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/4% 07/15/2028 | 0.031158 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8%  01/15/32 | 0.030920 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 1-5/8% 10/15/27 | 0.029471 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.250 04/15/2028 | 0.029399 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 04/15/2027 | 0.028779 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 07/15/2031 | 0.028286 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 01/15/2031 | 0.027934 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES .125 07/15/2030 | 0.027111 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/2% 01/15/2028 | 0.026014 | ✓ |
| U.S. Treasury Notes 0.125%, Due 1/15/2030 | 0.025832 | ✓ |
| U.S. Treasury Notes | 0.022695 | ✓ |
| U.S. Treasury Inflation-Linked Notes | 0.021807 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES .875% 01/15/2029 | 0.020190 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES .25%  07/15/29 | 0.019755 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/8% 07/15/2027 | 0.019474 | ✓ |
| US TREASURY N/B | 0.019249 |  |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/4% 02/15/2045 | 0.016668 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 3-7/8% 04/15/29 | 0.013764 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 1-3/8% 02/15/2044 | 0.012858 | ✓ |
| US TREASURY N/B | 0.012086 |  |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 3-5/8% 04/15/28 | 0.011681 | ✓ |
| U.S. Treasury Inflation-Indexed Notes | 0.011358 |  |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 2-1/2% 01/15/29 | 0.011091 | ✓ |
| U.S. Treasury Inflation-Protected Indexed Bonds | 0.010998 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 1-3/4% 01/15/28 | 0.010977 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/4% 02/15/2042 | 0.010657 | ✓ |
| U.S. Treasury Inflation-Protected Notes 2.125%, Due 02/15/2054 | 0.010186 | ✓ |
| Vanguard Market Liquidity Fund | 0.009589 |  |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.50% 2/15/2053 | 0.009232 | ✓ |
| U.S. Treasury Inflation-Protected Indexed Bonds | 0.009114 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8%  02/15/2052 | 0.007219 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 1% 02/15/46 | 0.006424 | ✓ |
| UNITED STATES TREASURY INFLATION INDEXED BONDS I/L 2.375% 02-15-56 | 0.006332 |  |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-5/8% 02/15/2043 | 0.006192 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0.25% 02/15/2050 | 0.006162 | ✓ |
| U.S. Treasury Inflation-Protected Indexed Bonds | 0.005802 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 2 1/8% 02/15/40 | 0.005779 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-7/8% 02/15/2047 | 0.005606 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 1% 02/15/48 | 0.005513 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 3-3/8% 04/15/32 | 0.005165 | ✓ |

## Inflation Protection Fund — top positions

| Security | Weight | Shared |
|----------|--------|--------|
| Principal Government Money Market Fund - Class R-6 | 0.054038 |  |
| U.S. Treasury Inflation-Protected Indexed Notes | 0.043934 | ✓ |
| U.S. Treasury Notes | 0.042692 | ✓ |
| U.S. Treasury Inflation-Protected Indexed Notes | 0.037674 | ✓ |
| U.S. Treasury Inflation-Protected Notes 1.75%, Due 01/15/2034 | 0.036875 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-5/8% 07/15/2032 | 0.033818 | ✓ |
| U.S. Treasury Inflation-Linked Notes | 0.033695 | ✓ |
| U.S. Treasury Inflation-Protected Indexed Notes | 0.033370 | ✓ |
| U.S. Treasury Notes | 0.032891 | ✓ |
| U.S. Treasury Notes | 0.032477 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8%  01/15/32 | 0.032011 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.250 04/15/2028 | 0.031760 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 2.375% 10/15/2028 | 0.031197 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.125% 01/15/2033 | 0.031036 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.375 07/15/33 | 0.030311 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 07/15/2031 | 0.029383 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES .125 07/15/2030 | 0.029234 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 01/15/2031 | 0.028248 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/2% 01/15/2028 | 0.027529 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/4% 07/15/2028 | 0.025143 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 1-5/8% 10/15/27 | 0.024791 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES .25%  07/15/29 | 0.023923 | ✓ |
| U.S. Treasury Notes 0.125%, Due 1/15/2030 | 0.023902 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES .875% 01/15/2029 | 0.019743 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/8% 07/15/2027 | 0.019155 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/4% 02/15/2042 | 0.014190 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 3-7/8% 04/15/29 | 0.014140 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 1-3/8% 02/15/2044 | 0.013190 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 3-5/8% 04/15/28 | 0.013054 | ✓ |
| U.S. Treasury Inflation-Protected Notes 2.125%, Due 02/15/2054 | 0.012167 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 2-1/2% 01/15/29 | 0.011540 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/4% 02/15/2045 | 0.011425 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 1-3/4% 01/15/28 | 0.009692 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.50% 2/15/2053 | 0.009199 | ✓ |
| U.S. Treasury Inflation-Protected Indexed Bonds | 0.009054 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-5/8% 02/15/2043 | 0.008812 | ✓ |
| U.S. Treasury Inflation-Protected Indexed Bonds | 0.007684 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8%  02/15/2052 | 0.007190 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-7/8% 02/15/2047 | 0.007068 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 1% 02/15/46 | 0.006873 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0.25% 02/15/2050 | 0.006518 | ✓ |
| U.S. Treasury Inflation-Protected Indexed Bonds | 0.005999 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 1% 02/15/48 | 0.005863 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 3-3/8% 04/15/32 | 0.005721 | ✓ |
| U.S. Treasury Inflation Linked Bonds | 0.005342 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 04/15/2027 | 0.003506 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 2 1/8% 02/15/40 | 0.001867 | ✓ |
| Progress Residential 2022-SFR7 Trust | 0.001484 |  |
| Barclays Mortgage Loan Trust, Series 2025-NQM3, Class A1 | 0.001104 |  |
| HOMES Trust, Series 2025-AFC2, Class A1A | 0.001096 |  |


## Sources

- N-PORT (fund A) — accession `0000794105-26-000184` (as of 2026-03-31)
  <https://www.sec.gov/Archives/edgar/data/794105/000079410526000184/0000794105-26-000184-index.htm>
- N-PORT (fund B) — accession `0000898745-26-000443` (as of 2026-01-31)
  <https://www.sec.gov/Archives/edgar/data/898745/000089874526000443/0000898745-26-000443-index.htm>

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