Waymo's aggressive 2026 rollout of its autonomous robotaxi service, backed by scaled manufacturing and improved Waymo Driver capabilities, forms the core driver of trader sentiment on city launches by year-end. Recent milestones include simultaneous fully driverless commercial openings in San Diego, Las Vegas, Tampa, and Denver in July, following public access in Dallas, Houston, San Antonio, and Orlando earlier in the year, pushing the total past 10 U.S. markets with coverage exceeding 1,400 square miles. Competitive pressure from slower rivals like Tesla and Zoox, plus regulatory progress in new states, supports the pace, while testing continues in additional markets such as Washington D.C., Nashville, and international sites like London. Key upcoming catalysts include fleet scaling targets toward one million weekly rides and potential weather or permitting hurdles in northern or dense cities that could shift timelines.