Nvidia (NVDA) closed above $4 trillion market cap for the first time on Thursday. CEO Jensen Huang's visit to China can be the next catalyst to boost its shares even higher, according to Jenny Horne. Appetite for A.I. remains strong, as Jenny notes AMD Inc.'s (AMD) massive rally off April lows. She later focuses on Tesla (TSLA) and its lowered price target from Golman Sachs. The firm sees tariff troubles ahead for the Mag 7 company.