IWO vs. SPY: Small-Cap Growth Potential Against Large-Cap Stability
Key takeaways
- Investors may choose between the broad-market stability of the S&P 500 and the higher risk-reward potential of small-cap growth equities.
- Beta measures price volatility relative to the S&P 500; beta is calculated from five-year monthly returns.
- The iShares Russell 2000 Growth ETF is more expensive to hold with a 0.24% expense ratio compared to 0.09% for the SPDR trust.
Sara Appino, The Motley Fool Mon, May 11, 2026 at 7:05 PM GMT+7 4 min read SPY ^GSPC i Shares Russell 2000 Growth ETF (NYSEMKT:IWO) targets small-cap companies with rapid growth potential, whereas State Street SPDR S&P 500 ETF Trust (NYSEMKT:SPY) offers a diversified anchor of the largest U.S. corporations.
Investors may choose between the broad-market stability of the S&P 500 and the higher risk-reward potential of small-cap growth equities. The State Street SPDR S&P 500 ETF Trust serves as the global standard for large-cap domestic equity, while the iShares Russell 2000 Growth ETF filters smaller companies for aggressive expansion traits.
Beta measures price volatility relative to the S&P 500; beta is calculated from five-year monthly returns. The 1-yr return represents total return over the trailing 12 months. Dividend yield is the trailing-12-month distribution yield.