This weekly trading update focuses on markets during April 20-28, 2026. The big story for AI-related trading was in the semiconductor sector, where companies making computer chips for artificial intelligence had huge wins. ARM announced a new AGI CPU designed for AI agents, and its stock jumped 34.10%. AMD gained 26.50% thanks to strong AI hardware demand, while Intel rose 25.63% after reporting great results for server chips used in AI. The overall stock market did well this week, with the S&P 500 crossing 7,000 points for the first time and tech stocks leading the way with 8.09% gains. A big reason for the market jump was good news about Middle Eastern tensions easing, which made investors feel less worried. Most of the AI trading action happened because companies everywhere are racing to build new AI systems and need tons of special computer chips to power them. Intel even made a new partnership with Tesla for something called the Terafab project to help with AI infrastructure. Overall, if you wanted to make money from AI this week, semiconductor stocks were the place to watch.