# Portfolio overlap — AIARX vs FIPDX

Comparing **Inflation-Adjusted Bond Fund** (2026-03-31) and **Fidelity Inflation-Protected Bond Index Fund** (2026-03-31).

- Shared positions: 41
- Inflation-Adjusted Bond Fund covered by Fidelity Inflation-Protected Bond Index Fund: 0.6353075771878684337389600588
- Fidelity Inflation-Protected Bond Index Fund covered by Inflation-Adjusted Bond Fund: 0.6353075771878684337389600587

## Inflation-Adjusted Bond Fund — top positions

| Security | Weight | Shared |
|----------|--------|--------|
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.375 07/15/33 | 0.056316 | ✓ |
| U.S. Treasury Inflation-Protected Indexed Notes | 0.047907 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 07/15/2031 | 0.047715 | ✓ |
| U.S. Treasury Notes | 0.045164 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-5/8% 07/15/2032 | 0.040213 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.250 04/15/2028 | 0.038264 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 3-7/8% 04/15/29 | 0.034712 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/2% 01/15/2028 | 0.034524 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES .25%  07/15/29 | 0.033154 | ✓ |
| Regatta Funding Co LLC | 0.029693 |  |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 04/15/2027 | 0.029312 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 3-5/8% 04/15/28 | 0.027466 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES .125 07/15/2030 | 0.027441 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 1-3/8% 02/15/2044 | 0.025440 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8%  01/15/32 | 0.022428 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.125% 01/15/2033 | 0.021296 | ✓ |
| U.S. Treasury Notes 0.125%, Due 1/15/2030 | 0.020787 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/4% 02/15/2045 | 0.019286 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES .875% 01/15/2029 | 0.017598 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-5/8% 02/15/2043 | 0.017034 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/8% 07/15/2027 | 0.016781 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 01/15/2031 | 0.015563 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 3-3/8% 04/15/32 | 0.014615 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/4% 07/15/2028 | 0.013975 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/4% 02/15/2042 | 0.013915 | ✓ |
| U.S. Treasury Inflation-Protected Notes 1.75%, Due 01/15/2034 | 0.013407 | ✓ |
| NEW ZEALAND GVT | 0.013355 |  |
| U.S. Treasury Inflation-Protected Indexed Bonds | 0.011475 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-7/8% 02/15/2047 | 0.010938 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 1-3/4% 01/15/28 | 0.010557 | ✓ |
| St Lawrence Funding LLC 0.00 04/01/2026 | 0.009527 |  |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 1% 02/15/48 | 0.009035 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 2.375% 10/15/2028 | 0.008164 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8%  02/15/2052 | 0.007846 | ✓ |
| iShares Trust 0-5YR HIGH YEILD CORP BD ET | 0.007262 |  |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0.25% 02/15/2050 | 0.007162 | ✓ |
| U.S. Treasury Notes | 0.006681 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 1-5/8% 10/15/27 | 0.005520 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 2-1/2% 01/15/29 | 0.005381 | ✓ |
| JP Morgan Mortgage Trust 2026-CES1 4.91 | 0.005197 |  |
| U.S. Treasury Inflation Linked Bonds | 0.004647 | ✓ |
| BMARK 2024-V8 A3 FRN 07-15-57 | 0.004546 |  |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 1% 02/15/46 | 0.004464 | ✓ |
| JP Morgan Mortgage Trust Series 2026-ACES1 | 0.004351 |  |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.50% 2/15/2053 | 0.004114 | ✓ |
| Sequoia Mortgage Trust 2025-8 5.50 | 0.004004 |  |
| Santander Mortgage Asset Receivable Trust 2026-CES1 | 0.003841 |  |
| New Zealand Parliament | 0.003735 |  |
| PRKCM 2026-AFC1 A1 | 0.003694 |  |
| BARCLAYS PLC REGD V/R /PERP/ 8.00000000 | 0.003416 |  |

## Fidelity Inflation-Protected Bond Index Fund — top positions

| Security | Weight | Shared |
|----------|--------|--------|
| U.S. Treasury Inflation-Protected Indexed Notes | 0.040490 | ✓ |
| U.S. Treasury Inflation-Protected Indexed Notes | 0.040075 | ✓ |
| U.S. Treasury Notes | 0.039764 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.375 07/15/33 | 0.036575 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-5/8% 07/15/2032 | 0.035230 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 04/15/2027 | 0.034278 | ✓ |
| U.S. Treasury Inflation-Protected Indexed Notes | 0.032981 |  |
| U.S. Treasury Inflation-Protected Notes 1.75%, Due 01/15/2034 | 0.032638 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 01/15/2031 | 0.032396 | ✓ |
| U.S. Treasury Notes | 0.031104 |  |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 2.375% 10/15/2028 | 0.031092 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.125% 01/15/2033 | 0.030964 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES .125 07/15/2030 | 0.030843 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8% 07/15/2031 | 0.029985 | ✓ |
| U.S. Treasury Notes | 0.029584 | ✓ |
| U.S. Treasury Notes 0.125%, Due 1/15/2030 | 0.028565 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.250 04/15/2028 | 0.028399 | ✓ |
| U.S. Treasury Inflation-Linked Notes | 0.028146 |  |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES .25%  07/15/29 | 0.027894 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/2% 01/15/2028 | 0.027760 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 1-5/8% 10/15/27 | 0.027648 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8%  01/15/32 | 0.026958 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/4% 07/15/2028 | 0.024049 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/8% 07/15/2027 | 0.020856 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 3-5/8% 04/15/28 | 0.017717 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES .875% 01/15/2029 | 0.016719 | ✓ |
| U.S. Treasury Inflation-Indexed Notes | 0.014777 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 2-1/2% 01/15/29 | 0.013932 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 1-3/8% 02/15/2044 | 0.013777 | ✓ |
| U.S. Treasury Inflation-Protected Indexed Bonds | 0.013193 |  |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 3-7/8% 04/15/29 | 0.012840 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/4% 02/15/2045 | 0.012341 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 1.50% 2/15/2053 | 0.011301 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-3/4% 02/15/2042 | 0.011301 | ✓ |
| Fidelity Securities Lending Cash Central Fund | 0.010993 |  |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-7/8% 02/15/2047 | 0.009590 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-5/8% 02/15/2043 | 0.009230 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 3-3/8% 04/15/32 | 0.009109 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0.25% 02/15/2050 | 0.007968 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 1-3/4% 01/15/28 | 0.007904 | ✓ |
| U.S. Treasury Inflation-Protected Indexed Bonds | 0.007790 |  |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 0-1/8%  02/15/2052 | 0.006942 | ✓ |
| U.S. Treasury Inflation-Protected Notes 2.125%, Due 02/15/2054 | 0.006882 | ✓ |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 2 1/8% 02/15/40 | 0.006532 |  |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 1% 02/15/48 | 0.006417 | ✓ |
| UNITED STATES TREASURY INFLATION INDEXED BONDS I/L 2.375% 02-15-56 | 0.005754 |  |
| U.S. Treasury Inflation-Protected Indexed Bonds | 0.005529 | ✓ |
| Fidelity Cash Central Fund | 0.005409 |  |
| U.S. TREASURY INFLATION-PROTECTED SECURITIES 1% 02/15/46 | 0.005347 | ✓ |
| U.S. Treasury Inflation Linked Bonds | 0.002432 | ✓ |


## Sources

- N-PORT (fund A) — accession `0001193125-26-248829` (as of 2026-03-31)
  <https://www.sec.gov/Archives/edgar/data/773674/000119312526248829/0001193125-26-248829-index.htm>
- N-PORT (fund B) — accession `0000035402-26-003383` (as of 2026-03-31)
  <https://www.sec.gov/Archives/edgar/data/35315/000003540226003383/0000035402-26-003383-index.htm>

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