According to CoinMeta, Vanguard’s VOO ETF currently holds about $1.05 trillion in assets. However, in 2026, 38 Vanguard ETF funds outperformed others, with the energy sector ETF leading the way with a 45% increase. Although VOO became the largest ETF in the United States, it did not emerge as the best performer in 2026. According to data from tracking institutions ETF, among Vanguard’s 116 US ETF funds, about one-third outperformed VOO. Vanguard Energy ETF ( VDE ) topped the list, with an increase of approximately 45.2% since the beginning of the year.