Why Is CoreWeave (CRWV) Stock Price Up 11.72% Today, Sep 8? OpenAI Astra Launch and Strong AI Compute Demand Fuel Rally

CoreWeave (CRWV) rose 11.72% to $99.83 on September 8, 2026, as OpenAI’s GPT-6 Astra launch renewed AI-compute demand expectations and CoreWeave said customer demand continues to exceed available capacity. This analysis examines the session, the evidence behind the move, technical levels and the risks that could change the setup.