1. Nvidia is set to report its Q1 earnings as the last of the 'Magnificent 7,' with investors focusing on gross margins, growth trajectory, and China-related challenges; 2. The company faces a $5.5B write-off due to U.S. export controls on AI chips to China, while exploring compliant chip alternatives; 3. Nvidia expands into Middle Eastern markets through partnerships in the UAE and Saudi Arabia, with capital expenditure forecasts under scrutiny.