STT's 0.36% Gain Can't Mask 25.26% Volume Drop 405th Market Rank on Sept 9

On September 9, 2025, , , ranking it 405th in market activity. .

To rigorously conduct this backtest, I need to clarify a few practical details that are not yet fully specified: 1. Market universe • Are we referring to U.S.-listed common stocks (NYSE + NASDAQ), or another market? • Should , ADRs, , etc., be excluded? 2. Portfolio construction • Equal-weight the 500 names each day, or weight by another factor (e.g., volume, )? • Should transaction costs/slippage be included? If so, at what rate (e.g., 5 per side)? 3. Trading convention • Buy at today's close and sell at tomorrow's close (close-to-close), or buy at tomorrow's open and sell at tomorrow's close? • Hold exactly one trading day before fully rebalancing the basket, correct? 4. Benchmark/performance metrics • Any benchmark to compare against (e.g., SPY), or just standard performance statistics (, max drawdown, Sharpe ratio, hit rate)? Once I have this information, I can outline a precise data retrieval plan and initiate the backtest.