MDYG Holdings — State Street(R) SPDR(R) S & P 400(TM) Mid Cap Growth ETF
Data updated: 2026-09-11
MDYG holds 246 securities. The top 10 make up 16.5% of net assets, led by State Street Navigator Securities Lending Portfolio II (3.43%) and Twilio (1.66%). Industrials (26.3%) and Information Technology (21.8%) are the largest sectors, and 95.6% of the portfolio is in United States. No debt holdings are reported.
Holdings cover 103.40% of net asset value (99.95% of total assets; remainder is cash and receivables). As of June 30, 2026 · N-PORT.
MDYG Portfolio Holdings
246 holdings of State Street(R) SPDR(R) S & P 400(TM) Mid Cap Growth ETF by percentage of net assets, from the fund's SEC N-PORT filing as of June 30, 2026. The 100 largest are listed below; the interactive table on this page lists all 246.
| Holding | Ticker | Sector | % of net assets | Value (USD) |
|---|---|---|---|---|
| State Street Navigator Securities Lending Portfolio II | — | Funds & ETFs | 3.43% | $100.36M |
| Twilio Inc | TWLO | Information Technology | 1.66% | $48.49M |
| Carpenter Technology Corp | CRS | Materials | 1.62% | $47.47M |
| Curtiss-Wright Corp | CW | Industrials | 1.48% | $43.35M |
| nVent Electric PLC | NVT | Industrials | 1.45% | $42.48M |
| ATI Inc | ATI | Materials | 1.42% | $41.60M |
| TechnipFMC PLC | FTI | Energy | 1.40% | $40.94M |
| Sterling Infrastructure Inc | STRL | Industrials | 1.36% | $39.88M |
| MasTec Inc | MTZ | Industrials | 1.36% | $39.65M |
| Woodward Inc | WWD | Industrials | 1.34% | $39.26M |
| MACOM Technology Solutions Holdings Inc | MTSI | Information Technology | 1.32% | $38.60M |
| Everpure Inc | P | Information Technology | 1.32% | $38.51M |
| XPO Inc | XPO | Industrials | 1.28% | $37.28M |
| United Therapeutics Corp | UTHR | Health Care | 1.22% | $35.62M |
| Okta Inc | OKTA | Information Technology | 1.21% | $35.38M |
| RB Global Inc | RBA | Industrials | 1.15% | $33.55M |
| MKS Inc | MKSI | Information Technology | 1.13% | $33.07M |
| RBC Bearings Inc | RBC | Industrials | 1.08% | $31.47M |
| Fabrinet | FN | Information Technology | 1.07% | $31.15M |
| TTM Technologies Inc | TTMI | Information Technology | 1.03% | $30.04M |
| Roku Inc | ROKU | Communication Services | 0.96% | $28.08M |
| BWX Technologies Inc | BWXT | Industrials | 0.94% | $27.58M |
| ITT Inc | ITT | Industrials | 0.94% | $27.34M |
| Talen Energy Corp | TLN | Utilities | 0.92% | $27.02M |
| Neurocrine Biosciences Inc | NBIX | Health Care | 0.90% | $26.20M |
| Coeur Mining Inc | CDE | Materials | 0.89% | $26.11M |
| SiTime Corp | SITM | Information Technology | 0.88% | $25.62M |
| Somnigroup International Inc | SGI | Consumer Discretionary | 0.87% | $25.50M |
| API Group Corp | APG | Industrials | 0.86% | $25.25M |
| Royal Gold Inc | RGLD | Financials | 0.86% | $25.20M |
| Tenet Healthcare Corp | THC | Health Care | 0.85% | $24.97M |
| Dycom Industries Inc | DY | Industrials | 0.80% | $23.52M |
| Jazz Pharmaceuticals PLC | JAZZ | Health Care | 0.80% | $23.42M |
| Illumina Inc | ILMN | Health Care | 0.76% | $22.22M |
| Rambus Inc | RMBS | Information Technology | 0.76% | $22.20M |
| Advanced Energy Industries Inc | AEIS | Information Technology | 0.75% | $21.94M |
| Exelixis Inc | EXEL | Health Care | 0.72% | $21.15M |
| Sanmina Corp | SANM | Information Technology | 0.72% | $20.98M |
| Dynatrace Inc | DT | Information Technology | 0.69% | $20.05M |
| DigitalOcean Holdings Inc | DOCN | Information Technology | 0.68% | $19.77M |
| Texas Roadhouse Inc | TXRH | Consumer Discretionary | 0.67% | $19.65M |
| Penumbra Inc | PEN | Health Care | 0.66% | $19.21M |
| Lattice Semiconductor Corp | LSCC | Information Technology | 0.65% | $19.13M |
| SPX Technologies Inc | SPXC | Industrials | 0.65% | $19.02M |
| Elanco Animal Health Inc | ELAN | Health Care | 0.65% | $19.01M |
| Burlington Stores Inc | BURL | Consumer Discretionary | 0.64% | $18.83M |
| Moog Inc | MOG.A | Industrials | 0.64% | $18.64M |
| Medpace Holdings Inc | MEDP | Health Care | 0.63% | $18.52M |
| Nextpower Inc | NXT | Industrials | 0.61% | $17.78M |
| Arrowhead Pharmaceuticals Inc | ARWR | Health Care | 0.61% | $17.76M |
| New York Times Co/The | NYT | Communication Services | 0.60% | $17.43M |
| Viavi Solutions Inc | VIAV | Information Technology | 0.59% | $17.31M |
| Entegris Inc | ENTG | Information Technology | 0.58% | $16.97M |
| Coca-Cola Consolidated Inc | COKE | Consumer Staples | 0.57% | $16.69M |
| DT Midstream Inc | DTM | Energy | 0.57% | $16.67M |
| Watts Water Technologies Inc | WTS | Industrials | 0.57% | $16.63M |
| Semtech Corp | SMTC | Information Technology | 0.56% | $16.31M |
| Guidewire Software Inc | GWRE | Information Technology | 0.55% | $16.11M |
| Hecla Mining Co | HL | Materials | 0.55% | $16.00M |
| CACI International Inc | CACI | Information Technology | 0.54% | $15.83M |
| Encompass Health Corp | EHC | Health Care | 0.53% | $15.50M |
| Five Below Inc | FIVE | Consumer Staples | 0.53% | $15.42M |
| TopBuild Corp | — | Industrials | 0.53% | $15.41M |
| Lincoln Electric Holdings Inc | LECO | Industrials | 0.52% | $15.34M |
| Mueller Industries Inc | MLI | Materials | 0.52% | $15.13M |
| CareTrust REIT Inc | CTRE | Real Estate | 0.50% | $14.74M |
| Flowserve Corp | FLS | Industrials | 0.50% | $14.66M |
| Chart Industries Inc | GTLS | Industrials | 0.50% | $14.53M |
| Kratos Defense & Security Solutions Inc | KTOS | Industrials | 0.49% | $14.46M |
| Ensign Group Inc/The | ENSG | Health Care | 0.49% | $14.41M |
| Halozyme Therapeutics Inc | HALO | Health Care | 0.49% | $14.40M |
| Roivant Sciences Ltd | ROIV | Health Care | 0.49% | $14.31M |
| Onto Innovation Inc | ONTO | Industrials | 0.48% | $14.04M |
| East West Bancorp Inc | EWBC | Financials | 0.48% | $13.95M |
| Affiliated Managers Group Inc | AMG | Financials | 0.47% | $13.86M |
| Globus Medical Inc | GMED | Health Care | 0.47% | $13.85M |
| Vicor Corp | VICR | Information Technology | 0.47% | $13.73M |
| AAON Inc | AAON | Industrials | 0.46% | $13.37M |
| EnerSys | ENS | Information Technology | 0.46% | $13.37M |
| WP Carey Inc | WPC | Real Estate | 0.45% | $13.09M |
| FirstCash Holdings Inc | FCFS | Consumer Discretionary | 0.44% | $12.94M |
| Evercore Inc | EVR | Financials | 0.43% | $12.70M |
| Lamar Advertising Co | LAMR | Real Estate | 0.43% | $12.61M |
| First Industrial Realty Trust Inc | FR | Real Estate | 0.43% | $12.57M |
| Nutanix Inc | NTNX | Information Technology | 0.43% | $12.54M |
| UL Solutions Inc | ULS | Industrials | 0.42% | $12.26M |
| Acuity Inc | AYI | Industrials | 0.41% | $11.97M |
| Omega Healthcare Investors Inc | OHI | Real Estate | 0.41% | $11.89M |
| HealthEquity Inc | HQY | Industrials | 0.40% | $11.80M |
| Clean Harbors Inc | CLH | Industrials | 0.40% | $11.71M |
| Antero Midstream Corp | AM | Energy | 0.40% | $11.70M |
| Hexcel Corp | HXL | Materials | 0.40% | $11.67M |
| Tetra Tech Inc | TTEK | Industrials | 0.40% | $11.59M |
| Solstice Advanced Materials Inc | SOLS | Materials | 0.39% | $11.54M |
| Hims & Hers Health Inc | HIMS | Health Care | 0.39% | $11.36M |
| InterDigital Inc | IDCC | Financials | 0.39% | $11.32M |
| TransUnion | TRU | Industrials | 0.38% | $11.19M |
| Kinsale Capital Group Inc | KNSL | Financials | 0.38% | $11.17M |
| RenaissanceRe Holdings Ltd | RNR | Financials | 0.37% | $10.87M |
| Donaldson Co Inc | DCI | Industrials | 0.37% | $10.77M |
MDYG Sector Allocation
State Street(R) SPDR(R) S & P 400(TM) Mid Cap Growth ETF holdings grouped by sector, by share of the portfolio's market value.
| Sector | Weight | Holdings |
|---|---|---|
| Industrials | 26.3% | 54 |
| Information Technology | 21.8% | 44 |
| Health Care | 12.9% | 28 |
| Consumer Discretionary | 7.8% | 34 |
| Materials | 7.5% | 15 |
| Financials | 7.0% | 28 |
| Real Estate | 5.0% | 18 |
| Funds & ETFs | 3.4% | 3 |
| Energy | 2.8% | 5 |
| Utilities | 2.0% | 7 |
| Consumer Staples | 1.9% | 7 |
| Communication Services | 1.6% | 3 |
MDYG Country Allocation
Where State Street(R) SPDR(R) S & P 400(TM) Mid Cap Growth ETF's holdings are domiciled, by percentage of net assets (largest 7).
| Country | % of net assets |
|---|---|
| United States | 95.6% |
| Ireland | 2.4% |
| United Kingdom | 1.6% |
| Bermuda | 1.4% |
| Canada | 1.3% |
| Cayman Islands | 1.1% |
| British Virgin Islands | 0.1% |
MDYG Portfolio Allocation
Asset-class allocation of State Street(R) SPDR(R) S & P 400(TM) Mid Cap Growth ETF by percentage of net assets, from the latest SEC N-PORT filing.
| Asset class | Allocation |
|---|---|
| Equity | 99.9% |
| Cash & Equivalents | 3.5% |
For information only. Not investment advice: figures are as reported in SEC filings and may contain errors or be out of date. Past performance does not guarantee future results.