Key Takeaways VTWO tracks nearly 2,000 U.S. small caps, with broad sector exposure and no single holding above 0.9%.IWM mirrors the Russell 2000, holding 1,959 stocks and delivering high liquidity with heavy daily trading. VB focuses on 1,331 U.S. small caps, combining ultra-low fees with diversified exposure across key sectors. Wall Street had a wobbly start to 2026, with major stock indices ending the year’s first trading day with a mixed note. While the S&P 500 inched up 0.2% and the Dow Jones Industria ...