Diversification and Sector Exposure Define SPSM’s Portfolio Amid Recent Volatility SPSM, with nearly $11 billion in assets, invests primarily in U.S. small-cap stocks, heavily weighted in financials, industrials, and consumer cyclicals. While the ETF offers broad sector exposure and daily pricing, its recent underperformance and negative short-term forecasts highlight the ongoing challenges for small-cap equities.42