MSTR's 114% Volume Spike Drives $6.89B Turnover Nabs 13th U.S. Trading Rank

On September 18, 2025, Strategy (MSTR) surged 5.89% to close its most active trading session, with a record-breaking $6.89 billion in turnover that marked a 114% spike from the previous day. The stock ranked 13th among U.S. equities by trading volume, reflecting intensified institutional and retail investor interest amid evolving market dynamics.

Recent developments indicate renewed focus on MSTR's strategic positioning within the tech sector. Analysts noted that the company's recent capital allocation decisions and product roadmap updates have sparked discussions among investors about its long-term growth potential. While no new earnings reports or regulatory filings were disclosed, the surge in trading activity suggests a shift in market sentiment driven by technical analysis and algorithmic trading patterns.

To validate the performance of a volume-weighted trading strategy involving MSTR, a detailed back-test framework has been proposed. This includes defining the market universe, establishing daily stock selection protocols, and specifying execution parameters such as rebalancing frequency and transaction cost assumptions. The methodology aims to evaluate the effectiveness of a top-500-by-volume approach over a 2.5-year period while maintaining strict adherence to data accuracy and implementation consistency.