VOOG vs SLYG: Mega-Cap Growth Meets Small-Cap Diversification

The choice between the Vanguard S&P 500 Growth ETF (VOOG) and the State Street SPDR S&P 600 Small Cap Growth ETF (SLYG) comes down to market cap exposure and sector concentration. VOOG delivers a concentrated bet on tech megacaps. SLYG spreads its bets across hundreds of smaller companies.

VOOG tracks the S&P 500 Growth Index. It holds 212 stocks, with technology accounting for 52% of the portfolio. Communication services and consumer cyclical make up another 25%. The top three positions – Nvidia, Microsoft, and Apple – represent roughly 27% of the fund's assets. AlphaScala assigns Nvidia a score of 74 and Microsoft a score of 61, both in the moderate range, reflecting the concentrated risk in these holdings. The fund's expense ratio is 0.07%, among the lowest for growth ETFs. Its trailing-12-month dividend yield is 0.4%, based on $0.37 per share paid over the past year.

SLYG tracks the S&P 600 Small Cap Growth Index. It holds 350 stocks, with a more balanced sector mix: industrials at 19%, technology at 18%, and healthcare at 17%. No single stock accounts for more than 1.15% of assets. The top holdings include Viasat, Corcept Therapeutics, and Alkermes. The expense ratio is 0.15%, double VOOG's fee. The dividend yield is 0.7%, from $0.76 per share over the trailing 12 months.

Performance over the last decade favors the large-cap fund. VOOG delivered a total return of 385%, a compound annual growth rate of 17.1%. That beat the S&P 500's 300% total return. SLYG returned 182%, a CAGR of 10.9%, underperforming the broad market.

For investors who want tech megacaps and are comfortable with concentration, VOOG offers lower fees and stronger historical returns. SLYG provides diversification across smaller companies and sectors, with a higher expense ratio and lower long-term performance. Both funds are available on major exchanges, and the choice depends on the investor's market-cap preference and risk tolerance.