State Street SPDR S&P 400 Mid Cap Growth ETF (MDYG)
State Street SPDR S&P 400 Mid Cap Growth ETF (MDYG) — US mid-cap ETF. Analyze it on ETF Copilot.
Tracks mid-cap growth stocks in the U.S. economy.
Adds a mid-cap growth allocation to a portfolio that already holds broad U.S. equities.
14% of MDYG is its ten largest holdings.
More concentrated than 72% of US Mid Cap ETFs.
What's inside MDYG: Size (large 0%, mid 95%, small 5%); Geography (international 7%, us 93%); Tech 17.9%; AI 0.6%; Semiconductors 4.5%; Memory 1.3%.
As of July 29, 2026, ETF Copilot scores State Street SPDR S&P 400 Mid Cap Growth ETF (MDYG) 4.1 out of 10 overall.
Updated July 29, 2026
ETF Copilot scores (0–10 scale, higher is better):
- Overall: 4.1 / 10
- Growth: 4.9 / 10
- Valuation: 4.1 / 10
- Risk: 3.2 / 10
- Profitability: 3.7 / 10
- Return: 4.3 / 10
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