Nvidia will take a victory lap at GTC. But investors see hurdles ahead. - MarketWatch
1. Nvidia shares down 11% this year amid AI competition and tariff fears. 2. CEO Jensen Huang to present advancements in AI at the GTC conference. 3. Investors focus on Blackwell systems' challenges and future Rubin product line. 4. Concerns persist over a potential slowdown in AI data-center growth. 5. Market reacts to Nvidia's inability to meet demand for Blackwell systems.