# Portfolio overlap — FSMAX vs FZIPX

Comparing **Fidelity Extended Market Index Fund** (2026-02-28) and **Fidelity ZERO Extended Market Index Fund** (2026-01-31).

- Shared positions: 1940
- Fidelity Extended Market Index Fund covered by Fidelity ZERO Extended Market Index Fund: 0.7852642009398973651492037907
- Fidelity ZERO Extended Market Index Fund covered by Fidelity Extended Market Index Fund: 0.7852642009398973651492037908

## Fidelity Extended Market Index Fund — top positions

| Security | Weight | Shared |
|----------|--------|--------|
| Fidelity Securities Lending Cash Central Fund | 0.052455 | ✓ |
| VERTIV HOLDINGS CO | 0.011813 |  |
| MARVELL TECHNOLOGY INC | 0.008537 |  |
| SNOWFLAKE INC CL A | 0.006933 |  |
| CLOUDFLARE INC-A | 0.006590 |  |
| FERGUSON ENTERPRISES INC | 0.006193 |  |
| CHENIERE ENERGY INC | 0.006143 |  |
| LUMENTUM HOLDINGS INC | 0.006025 | ✓ |
| ROBLOX CORP - A | 0.005445 |  |
| ALNYLAM PHARMACEUTICALS INC | 0.005332 |  |
| COHERENT CORP | 0.004933 | ✓ |
| STRATEGY INC CL A | 0.004216 |  |
| BLOOM ENERGY CORP CL A | 0.004110 | ✓ |
| AMRIZE LTD | 0.004052 |  |
| ROCKET LAB CORP | 0.003944 | ✓ |
| INSMED INC | 0.003863 |  |
| FTAI AVIATION LTD | 0.003800 | ✓ |
| NATERA INC | 0.003481 |  |
| VEEVA SYSTEMS-A | 0.003368 |  |
| MONGODB INC CL A | 0.003239 |  |
| TECHNIPFMC PLC | 0.003234 | ✓ |
| MARKEL GROUP INC | 0.003155 |  |
| COUPANG INC A | 0.003123 |  |
| CURTISS WRIGHT CORPORATION | 0.003123 | ✓ |
| CASEY'S GENERAL | 0.003086 | ✓ |
| XPO LOGISTICS INC | 0.002990 | ✓ |
| ROYAL GOLD INC | 0.002943 | ✓ |
| LPL FINL HLDGS INC | 0.002910 |  |
| FLEX LTD | 0.002824 | ✓ |
| WOODWARD INC | 0.002806 | ✓ |
| SOFI TECHNOLOGIES INC A | 0.002723 | ✓ |
| ATI INC | 0.002691 | ✓ |
| UNITED THERAPEUTICS CORP DEL | 0.002627 | ✓ |
| US FOODS HOLDING CORP | 0.002608 | ✓ |
| TENET HEALTHCARE CORP | 0.002550 | ✓ |
| ILLUMINA INC | 0.002488 |  |
| LIBERTY MEDIA CORP LIBERTY FORMULA ONE CL C | 0.002475 |  |
| ENTEGRIS INC | 0.002434 |  |
| PURE STORAGE INC CL A | 0.002431 | ✓ |
| CARPENTER TECHNOLOGY CORP | 0.002403 | ✓ |
| EXACT SCIENCES CORP | 0.002373 | ✓ |
| FABRINET | 0.002371 | ✓ |
| AST SPACEMOBILE INC | 0.002316 | ✓ |
| FIRST CITIZENS BANCSHARES INC CL A | 0.002315 |  |
| BURLINGTON STORES INC | 0.002313 |  |
| NVENT ELECTRIC PLC | 0.002312 | ✓ |
| BWX TECHNOLOGIES INC | 0.002280 | ✓ |
| TEMPUR SEALY INTERNATIONAL INC | 0.002274 | ✓ |
| RB GLOBAL INC | 0.002267 |  |
| HEICO CORP CL A | 0.002265 |  |

## Fidelity ZERO Extended Market Index Fund — top positions

| Security | Weight | Shared |
|----------|--------|--------|
| Fidelity Securities Lending Cash Central Fund | 0.041042 | ✓ |
| SANDISK CORPORATION | 0.010935 |  |
| COMFORT SYSTEMS USA INC | 0.005480 |  |
| ANGLOGOLD ASHANTI PLC | 0.005368 |  |
| ROCKET LAB CORP | 0.005130 | ✓ |
| CIENA CORP | 0.004842 |  |
| COHERENT CORP | 0.004545 | ✓ |
| BLOOM ENERGY CORP CL A | 0.004490 | ✓ |
| EMCOR GROUP INC | 0.004397 |  |
| SOFI TECHNOLOGIES INC A | 0.003919 | ✓ |
| FTAI AVIATION LTD | 0.003807 | ✓ |
| LUMENTUM HOLDINGS INC | 0.003787 | ✓ |
| AST SPACEMOBILE INC | 0.003662 | ✓ |
| TAPESTRY INC | 0.003538 |  |
| CURTISS WRIGHT CORPORATION | 0.003302 | ✓ |
| FLEX LTD | 0.003177 | ✓ |
| CH ROBINSON WORLDWIDE INC | 0.003140 |  |
| REDDIT INC-A | 0.003116 | ✓ |
| CASEY'S GENERAL | 0.003073 | ✓ |
| TECHNIPFMC PLC | 0.003070 | ✓ |
| PURE STORAGE INC CL A | 0.002960 | ✓ |
| ROYAL GOLD INC | 0.002909 | ✓ |
| UNITED THERAPEUTICS CORP DEL | 0.002755 | ✓ |
| ALBEMARLE CORP | 0.002738 |  |
| EXACT SCIENCES CORP | 0.002642 | ✓ |
| CREDO TECHNOLOGY GROUP HOLDING LTD | 0.002600 | ✓ |
| WOODWARD INC | 0.002598 | ✓ |
| BWX TECHNOLOGIES INC | 0.002561 | ✓ |
| US FOODS HOLDING CORP | 0.002539 | ✓ |
| ROLLINS INC | 0.002530 |  |
| TEMPUR SEALY INTERNATIONAL INC | 0.002512 | ✓ |
| NVENT ELECTRIC PLC | 0.002469 | ✓ |
| Fidelity Cash Central Fund | 0.002468 | ✓ |
| LOEWS CORP | 0.002427 |  |
| REVOLUTION MEDICINES INC | 0.002401 | ✓ |
| FABRINET | 0.002392 | ✓ |
| AFFIRM HOLDINGS INC | 0.002379 | ✓ |
| KRATOS DEFENSE and SEC SOLTN INC | 0.002371 | ✓ |
| NEXTRACKER INC CL A | 0.002369 | ✓ |
| XPO LOGISTICS INC | 0.002369 | ✓ |
| ROCKET COS INC-A | 0.002364 | ✓ |
| PENTAIR PLC | 0.002347 |  |
| JONES LANG LASALLE INC | 0.002302 | ✓ |
| TENET HEALTHCARE CORP | 0.002267 | ✓ |
| HUNTINGTON INGALLS INDUSTRIES INC | 0.002250 |  |
| INCYTE CORP | 0.002249 |  |
| ATI INC | 0.002228 | ✓ |
| TALEN ENERGY CORP | 0.002170 | ✓ |
| CARPENTER TECHNOLOGY CORP | 0.002158 | ✓ |
| MKS INSTRUMENTS INC | 0.002153 | ✓ |


## Sources

- N-PORT (fund A) — accession `0000035402-26-002587` (as of 2026-02-28)
  <https://www.sec.gov/Archives/edgar/data/819118/000003540226002587/0000035402-26-002587-index.htm>
- N-PORT (fund B) — accession `0000035402-26-002124` (as of 2026-01-31)
  <https://www.sec.gov/Archives/edgar/data/819118/000003540226002124/0000035402-26-002124-index.htm>

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