Lennar Rises 0.73% on 750M Volume Ranking 174th in U.S. Dollar Trading Amid Sector-Linked Market Dynamics

On October 10, 2025, Lennar Corporation (LEN) closed with a 0.73% increase, trading on a volume of $0.75 billion, ranking 174th in dollar volume among U.S. equities. The stock's performance reflects investor sentiment amid broader market dynamics.

Market participants noted limited news flow directly impacting Lennar’s valuation during the reporting period. The company remains positioned within the residential construction sector, where macroeconomic factors such as mortgage rates and housing demand continue to shape investor expectations. No material earnings updates, executive changes, or strategic announcements were reported for the firm during this timeframe.

To run this back-test accurately I need to clarify a few details about the trading universe and execution rules. Could you confirm (or adjust) the following so I can proceed without making assumptions that might distort results? 1. Market universe • Should I screen all primary-listed U.S. common stocks (≈ 4 000 symbols), or a different market (e.g., global, only S&P 500 constituents, China A-shares, etc.)? 2. Rebalancing & execution convention • The usual practice is: – At the close of day t, rank stocks by that day’s dollar volume and form the top-500 basket. – Enter the positions at the next day’s open (t + 1) and exit at the same day’s close, giving a one-day holding period. • Is that acceptable, or would you prefer “buy at today’s close, sell at tomorrow’s close,” or some other convention? 3. Weighting • Equal-weight each of the 500 names? • Or weight by dollar volume or some other metric? 4. Transaction costs • Should we assume zero commissions/impact, or would you like me to apply a simple cost model (e.g., 2 bps per leg)? Once I have these four points confirmed I can retrieve the necessary data and run the back-test.