SIIT EXTENDED MARKET INDEX FUND
Registrant
SEI INSTITUTIONAL INVESTMENTS TRUST
Class ticker
SMXAX
Net Assets
$1,313,288,218
Holdings
2,080
Latest Report
May 31, 2026
Net Assets Over Time
Holdings · 2,080
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Portfolio coverage: 2,080 of
2,274 reported positions.
Showing 1–50
of 2,080 holdings by value
· page 1 of 42
| Holding | Symbol | Balance | Value | % of Fund | Side | Category | Open |
|---|---|---|---|---|---|---|---|
| MARVELL TECHNOLOGY, INC. | MRVL | 132,112 | $27,082,960 | 2.06% | Long | EC | |
| SNOWFLAKE INC. | SNOW | 51,500 | $13,160,825 | 1.00% | Long | EC | |
| SPOTIFY TECHNOLOGY S.A. | SPOT | 23,963 | $11,925,906 | 0.91% | Long | EC | |
| CLOUDFLARE, INC. | NET | 48,800 | $11,800,816 | 0.90% | Long | EC | |
| ROCKET LAB CORPORATION | RKLB | 76,200 | $10,933,176 | 0.83% | Long | EC | |
| FLEX LTD. | FLEX | 57,200 | $8,624,616 | 0.66% | Long | EC | |
| STRATEGY INC | MSTR | 48,550 | $7,723,820 | 0.59% | Long | EC | |
| ANGLOGOLD ASHANTI PLC | AU | 78,300 | $7,582,572 | 0.58% | Long | EC | |
| CHENIERE ENERGY, INC. | LNG | 33,105 | $7,443,990 | 0.57% | Long | EC | |
| Astera Labs, Inc | ALAB | 20,000 | $6,857,000 | 0.52% | Long | EC | |
| Nu Holdings Ltd. | NU | 519,400 | $6,819,722 | 0.52% | Long | EC | |
| FERGUSON ENTERPRISES INC. | FERG | 29,700 | $6,711,309 | 0.51% | Long | EC | |
| ALNYLAM PHARMACEUTICALS, INC. | ALNY | 19,669 | $5,939,645 | 0.45% | Long | EC | |
| Credo Technology Group Holding Ltd | CRDO | 24,700 | $5,829,941 | 0.44% | Long | EC | |
| ROBLOX CORPORATION | RBLX | 97,600 | $4,601,840 | 0.35% | Long | EC | |
| NATERA, INC. | NTRA | 20,400 | $4,556,748 | 0.35% | Long | EC | |
| REVOLUTION MEDICINES, INC. | RVMD | 27,703 | $4,362,668 | 0.33% | Long | EC | |
| CURTISS-WRIGHT CORPORATION | CW | 5,778 | $4,319,691 | 0.33% | Long | EC | |
| TECHNIPFMC PLC | FTI | 62,900 | $4,303,618 | 0.33% | Long | EC | |
| MONGODB, INC. | MDB | 12,480 | $4,187,664 | 0.32% | Long | EC | |
| ZOOM COMMUNICATIONS, INC. | ZM | 41,121 | $4,177,482 | 0.32% | Long | EC | |
| TWILIO INC. | TWLO | 21,842 | $4,163,959 | 0.32% | Long | EC | |
| NVENT ELECTRIC PUBLIC LIMITED COMPANY | NVT | 24,600 | $4,107,954 | 0.31% | Long | EC | |
| FTAI Aviation Ltd. | FTAI | 15,740 | $4,097,752 | 0.31% | Long | EC | |
| Restaurant Brands International Inc. | QSR | 53,500 | $3,996,450 | 0.30% | Long | EC | |
| STERLING INFRASTRUCTURE, INC. | STRL | 4,580 | $3,942,647 | 0.30% | Long | EC | |
| Everpure, Inc | P | 48,600 | $3,864,186 | 0.29% | Long | EC | |
| ILLUMINA, INC. | ILMN | 23,700 | $3,862,152 | 0.29% | Long | EC | |
| AST SPACEMOBILE, INC. | ASTS | 33,500 | $3,799,235 | 0.29% | Long | EC | |
| XPO, INC. | XPO | 17,690 | $3,790,083 | 0.29% | Long | EC | |
| IONQ Inc | IONQ | 52,500 | $3,783,675 | 0.29% | Long | EC | |
| MACOM TECHNOLOGY SOLUTIONS HOLDINGS, INC. | MTSI | 10,225 | $3,728,444 | 0.28% | Long | EC | |
| UNITED THERAPEUTICS CORPORATION | UTHR | 6,544 | $3,643,830 | 0.28% | Long | EC | |
| ATI INC | ATI | 20,800 | $3,643,328 | 0.28% | Long | EC | |
| MASTEC, INC. | MTZ | 9,602 | $3,633,109 | 0.28% | Long | EC | |
| FABRINET | FN | 5,535 | $3,620,776 | 0.28% | Long | EC | |
| REDDIT, INC. | RDDT | 20,500 | $3,608,000 | 0.27% | Long | EC | |
| SOFI TECHNOLOGIES, INC. | SOFI | 192,053 | $3,499,206 | 0.27% | Long | EC | |
| Markel Group Inc. | MKL | 1,923 | $3,491,380 | 0.27% | Long | EC | |
| CARPENTER TECHNOLOGY CORPORATION | CRS | 7,421 | $3,480,301 | 0.27% | Long | EC | |
| INSMED INCORPORATED | INSM | 32,300 | $3,453,193 | 0.26% | Long | EC | |
| MKS, INCORPORATED. | MKSI | 10,623 | $3,444,614 | 0.26% | Long | EC | |
| LPL FINANCIAL HOLDINGS INC. | LPLA | 12,483 | $3,417,471 | 0.26% | Long | EC | |
| COUPANG, INC. | CPNG | 205,000 | $3,403,000 | 0.26% | Long | EC | |
| ROYALTY PHARMA PLC | RPRX | 61,000 | $3,401,360 | 0.26% | Long | EC | |
| OKTA, INC. | OKTA | 26,604 | $3,279,475 | 0.25% | Long | EC | |
| WOODWARD, INC. | WWD | 9,362 | $3,276,981 | 0.25% | Long | EC | |
| ENTEGRIS, INC. | ENTG | 23,430 | $3,251,850 | 0.25% | Long | EC | |
| BURLINGTON STORES, INC. | BURL | 9,960 | $3,225,347 | 0.25% | Long | EC | |
| LATTICE SEMICONDUCTOR CORPORATION | LSCC | 21,462 | $3,156,631 | 0.24% | Long | EC |