📝 Executive Summary
Investors weighing the Vanguard S&P 500 Growth ETF (VOOG) against the iShares Russell 2000 Growth ETF (IWO) face a choice between established large-cap stability and small-cap volatility. While VOOG has outperformed with a 19.2% one-year return, its heavy 53% concentration in technology creates distinct risks compared to the broader, more diversified portfolio of the small-cap focused IWO.