Wayfair Shares Dip 1.01 as $270M Trading Volume Slides to 466th in Market Activity

On September 17, 2025, , ranking 466th in market activity. The decline followed mixed signals from investor sentiment amid broader market uncertainty.

Analysts noted that the stock’s performance was influenced by lingering concerns over , particularly in the . While no major earnings or strategic announcements were disclosed, market participants remained cautious about affecting discretionary retail demand.

To run this back-test accurately we need to nail down a few practical details: 1. Universe • Which market/exchange should the “top-500” list be drawn from (e.g., all U.S. listed stocks, only NYSE + NASDAQ, only the Russell 3000, etc.)? • Is survivorship-bias-free membership (delisted stocks, mergers, etc.) required? 2. Ranking Metric • Do we rank on the previous day’s total $-traded (price × volume) or on share volume alone? • Do we form the portfolio at the close or at the next day’s open? 3. Execution assumptions • Buy price: today’s close or tomorrow’s open? • Sell price: next day’s close or next day’s open? • Any transaction costs or slippage to include? 4. Weighting & rebalancing • Equal-weight each of the 500 names, or weight by volume, or something else? • Rebalance every trading day (i.e., a completely fresh top-500 list daily)? 5. Benchmark / output • Any particular benchmark to compare against? • Required performance metrics beyond cumulative return (e.g., yearly returns, max drawdown, Sharpe)? Once those points are clarified I can generate the data-retrieval plan and run the back-test.