CoreWeave Jumps 7.6% on $4.47B Surge Climbs to 13th-Busiest U.S. Stock Amid AI Expansion Push

CoreWeave (CRWV) surged 7.60% on Sept. 15, 2025, with a trading volume of $4.47 billion that ranked 13th among U.S. equities. The move followed a strategic pivot toward AI infrastructure expansion, including a recently announced partnership to co-develop next-generation data center cooling solutions. Analysts noted the stock's performance was driven by renewed investor confidence in its cost optimization strategies and long-term EBITDA growth potential amid rising cloud computing demand.

Market participants highlighted the significance of the firm's recent operational updates, including a 20% reduction in energy costs per teraflop through hardware upgrades. These developments align with broader industry trends as hyperscale computing providers face intensifying pressure to deliver scalable, cost-effective solutions for generative AI workloads. The stock's strong volume suggests institutional investors are repositioning in the sector ahead of potential Q4 earnings revisions.

To run this back-test rigorously I need to pin down a few practical details: 1. Universe • Should we restrict the search to U.S.-listed common stocks only (i.e., exclude ETFs, ADRs, preferreds, etc.)? • Any minimum price filter (e.g., > $2) to avoid micro-caps? 2. Ranking timestamp & trade timing • The usual convention is “rank on day t’s close, buy at next day’s open, sell at that day’s close.” Does that match your intent, or would you prefer buy at today’s close and sell at tomorrow’s close? 3. Weighting & rebalancing cost • Equal-weight each of the 500 names selected daily? • Any round-trip transaction cost/slippage you want applied (e.g., 2 bps per side)? 4. Benchmark (optional) • Compare the strategy to SPY or another benchmark? Once I have these details I’ll set up the data-retrieval plan and run the back-test.