The Fidelity Blue-Chip Growth ETF FBCG has jumped 58.7% in 2023 to become the best-performing U.S. fund, excluding ETNs and leveraged products, according to FactSet data. The WisdomTree U.S. Quality Growth Fund QGRW is up 56.2% this year, while the Invesco QQQ Trust Series I QQQ has risen 55.6% in 2023.