United's $870M Surge in Trading Volume Propels 121st Rank Amid Sector Volatility

On September 11, 2025, , . . Meanwhile, .

Recent market commentary highlighted regulatory developments that could reshape the transportation sector. A proposed under congressional review includes provisions that might alter fuel tax calculations for commercial fleets. While the legislation remains in draft form, analysts note potential operational cost implications for large-scale logistics operators.

Industry observers are monitoring the U.S. Department of Transportation's ongoing investigation into route optimization practices. Preliminary findings suggest no immediate enforcement actions, but the inquiry has already triggered increased volatility in sector-specific assets. Market participants are advised to watch for quarterly earnings guidance adjustments from major carriers in response to potential regulatory shifts.

To run this back-test accurately we need to nail down a few practical details that aren't fully specified yet. Once they're clear I can launch the data-pull and calculation pipeline for you: 1. Universe • Do you want to rank all U.S. common stocks (NYSE + NASDAQ) each day, or limit the universe to a particular index (e.g. S&P 500 constituents)? 2. Ranking metric • "Daily trading volume" measured in shares, or notional dollar volume (shares × price)? 3. Portfolio construction • Equal-weight the 500 selected names each day (default), or weight by something else (e.g. volume-proportional)? 4. Execution assumptions • Buy at that day’s close and exit at the next day’s close (default) – acceptable? • Ignore transaction costs and slippage (default), or should we include an estimate? If the default choices above are acceptable, just say "use defaults"; otherwise let me know your preferences and I’ll proceed to run the back-test.